Get Maintenance Guide for Volkswagen Transporter Van Seventh Generation (2021-2025)

Fig. 2 In the front right bumper: screwing in the towing

eye.

1. Remove the towing eye from the vehicle toolkit in the luggage compartment (→ Vehicle toolkit).

2. To release the catch on the cover, press the marked area of the cover in the direction of the arrow→ Fig. 1.

3. Remove the cover, allow it to hang on the vehicle or place it in the vehicle if necessary.

4. Turn the towing eye as shown by thearrow into the threaded hole and tighten as far as possible→ Fig. 2 , →

Use a suitable object to screw the towing eye fully and securely into the mounting.

.

5. After you have finished towing, remove the towing eye by unscrewing itin the opposite direction to the arrow

using a suitable object.

6. Insert the cap in the respective recess and press in until it engages.

7. Clean the towing eye if necessary and place back in the toolbox in the luggage compartment.

NOTICE

The towing eye must always be screwed fully and securely into the mounting. Otherwise, the towing eye can be torn

out of the mounting when the vehicle is being tow-started or towed.

Safety notes on working in the engine compartment

The engine compartment of a motor vehicle is a hazardous area. You should only carry out work on the engine and in

the engine compartment if you know exactly how to perform the required tasks, are aware of the general safety

procedures and have access to the correct equipment, service fluids and suitable tools. Carrying out work incorrectly

can cause serious injuries. Have all work carried out by a correspondingly qualified workshop if necessary.

Always park the vehicle on a level and stable surface before carrying out any work in the engine compartment.

WARNING

Unintentional vehicle movements during service work can cause serious injury.

● Never work underneath a vehicle if it is not secured against rolling away. If you are working underneath the

vehicle while the wheels are on the ground, the vehicle must be on a level surface, the wheels must be blocked

and the ignition switched off.

● If you intend to work underneath the vehicle, use suitable stands to provide support for the vehicle. The vehicle

jack is not sufficient for this task and can fail, which can lead to serious injuries.

● Switch off the start/stop system.

WARNING

The engine/motor compartment of any motor vehicle is a dangerous area. Serious injuries can be sustained here.

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● Always work with extreme care and caution and observe the general safety precautions. Never take any personal

risk.

● Never perform any work on the engine and in the engine compartment unless you know exactly how to do so. If

you are uncertain of what to do, have the work carried out by a correspondingly qualified workshop. Serious

injuries can result from work that has not been carried out properly.

● Never open or close the bonnet as long as steam or coolant is escaping. Hot steam or hot coolant can cause

serious burns. Always wait until you can no longer see or hear steam or coolant coming from the engine

compartment.

● Always allow the engine to cool down before opening the bonnet.

● Hot parts of the engine or exhaust system can burn the skin.

● Observe the following points before opening the bonnet when the engine has cooled down:

● Activate the electronic parking brake and move the selector lever to positionP or move the gear lever to the

neutral position.

● Switch off the ignition.

● Always keep children away from the engine compartment and never leave children unsupervised.

● The cooling system is under pressure when the engine is hot. Never open the cap of the coolant expansion tank

when the engine is hot. Coolant may spray out and cause serious burns and other injuries.

● Turn the cap of the coolant expansion tank slowly and very carefully anticlockwise while exerting slight

downwards pressure on the cap.

● Always protect the face, hands and arms from hot coolant or steam with a large, thick cloth.

● When refilling, do not spill any service fluids onto engine components or onto the exhaust system. The spilt

service fluids can start a fire.

WARNING

There are rotating components in the engine compartment that can cause serious injury.

● Never reach into the radiator fan or into the area of the radiator fan. Touching the rotary blades can result in

serious injuries. The fan is temperature-controlled and could start automatically - even when the ignition is

switched off.

● If any work has to be performed when the engine is started or is running, there is an additional, potentially fatal,

safety risk from the rotating parts, such as the drive belts, alternator, radiator fan, etc., and from the high-voltage

ignition system. Always take extreme care.

● Always ensure that no body parts, jewellery, ties, loose items of clothing or long hair get caught up in rotating

engine components. Always remove jewellery and ties before starting work. Tie up long hair and pull clothes in

tightly to avoid them getting caught in engine parts.

● Always take due care and attention when depressing the accelerator. The vehicle could move, even if the

electronic parking brake is applied.

● Always ensure you have not left any objects, such as cleaning cloths and tools, in the engine compartment. Any

forgotten items can cause malfunctions, engine damage and fires.

WARNING

Additional insulating materials such as blankets in the engine compartment could disrupt the operation of the

engine, start fires and lead to severe injuries.

● Never cover the engine with blankets or other insulating materials.

WARNING

Service fluids and some materials in the engine compartment are highly flammable and can cause fires and serious

injuries!

● Never smoke in the vicinity of the engine compartment.

● Never work near naked flames or sparks.

● Never spill service fluids onto the engine. They could ignite on hot engine components and hence cause injuries.

● Please note the following when carrying out any work on the fuel system or the electrical system:

491

● Always disconnect the 12-volt vehicle battery. Ensure that the vehicle is unlocked when the 12-volt vehicle

battery is disconnected as otherwise the anti-theft alarm will be activated.

● Never work in the direct proximity of heating systems, water heaters or any other naked flames.

● Always have a fully functional and tested fire extinguisher to hand.

NOTICE

The use of incorrect service fluids could result in serious malfunctions and engine damage.

● When refilling or replacing service fluids, ensure that you pour the correct service fluids into the correct openings.

Service fluids leaks are harmful to the environment. For this reason, you should regularly check the ground

underneath your vehicle. If there are patches of oil or other fluids on the ground, the vehicle should be

inspected by a correspondingly qualified workshop. Any spilt service fluids must be disposed of properly.

Preparing the vehicle for working in the engine compartment

The following steps should always be carried out in the specified order before working in the engine compartment→

:

1. Park the vehicle on a level and stable surface.

2. Depress and hold the brake pedal until the engine has stopped.

3. Move the selector lever to positionP .

4. Switch on the electronic parking brake .

5. Switch off the ignition (→ Switching off the engine).

6. If necessary, remove the vehicle key from the vehicle and keep it in a separate location so that the vehicle

cannot be started accidentally.

7. Allow the engine to cool sufficiently.

8. Children and other people should be kept well away from the engine compartment.

9. Ensure that the vehicle cannot roll away unexpectedly.

WARNING

The items in these instructions are important for your own safety. Ignoring them can lead to severe injuries.

● Always comply with the instructions and observe generally valid safety precautions.

492

Opening and closing the bonnet

Fig. 1 In the left-hand footwell: Bonnet release lever

(illustration).

Fig. 2 Above the radiator grille: Bonnet control lever

(illustration).

Opening the bonnet

1. Ensure that the wiper arms are positioned on the windscreen before opening the bonnet→

2. Pull the release lever in the direction of the arrow→ Fig. 1.

.

The bonnet is released from the lock carrier catch by spring force→

.

3. To open the bonnet completely, lift the bonnet slightly and simultaneously press the control lever in the

direction of the arrow → Fig. 2.

The gas strut holds the bonnet in the open position.

Closing the bonnet

1. Pull the bonnet down→

.

2. Guide the bonnet gently into the bracket from a height of about 20 cm –do not press it down!

If the bonnet has not closed, open it and then close it correctly.

The bonnet is flush with the body parts around it when it is closed properly.

WARNING

493

If the bonnet is not closed properly, it can open suddenly while you are driving and completely obscure your view of

the road. This can lead to accidents and serious injuries.

● After closing the bonnet, always check whether the catch is properly engaged in the lock carrier.

● If you establish while driving that the bonnet is not closed properly, stop immediately and close the bonnet.

● Open or close the bonnet only when there is no-one in its movement path.

NOTICE

Opening and closing the bonnet incorrectly can damage the bonnet or the wiper arms.

● Open the bonnet only when the wiper arms are flush to the windscreen and when they are switched off.

● Always fold the wiper arms back onto the windscreen before driving away.

Display

A symbol on the instrument cluster display indicates if the bonnet is open or is not closed properly→ Fig. 1.

Fig. 1 On the display of the instrument cluster: The bonnet

is open or not properly closed (illustration).

1.

Do not drive on!

2. If necessary, lift the bonnet and then close it again.

This symbol is also visible when the ignition is switched off and will go out a few seconds after the vehicle has been

locked with all doors closed.

WARNING

Failure to observe warnings can cause your vehicle to break down in traffic, which can lead to accidents and serious

injuries.

● Never ignore warnings.

● Stop the vehicle as soon as it is possible and safe to do so.

The symbol can differ depending on the version of the instrument

cluster.

494

Service fluids and equipment

All service fluids and consumables, e.g. coolant or vehicle batteries, are being constantly developed. This also applies

to engine oils in the case of combustion engines. For this reason, service fluids and consumables should be replaced

by a correspondingly qualified workshop.

WARNING

Unsuitable service fluids and consumables, and the incorrect use of these fluids and consumables, can cause

accidents, serious injuries, burns or poisoning.

● Store service fluids only in the closed original container.

● Never store service fluids in empty food containers, bottles or any other non-original containers as people finding

these containers could drink them.

● Keep children away from all service fluids and consumables.

● Always observe and follow the information and warnings on the service fluid packaging.

● When using products that give off harmful fumes, always work outdoors or in a well-ventilated area.

● Never use fuel, turpentine, engine oil, nail varnish remover or other volatile fluids for vehicle care. They are toxic

and highly flammable. They could cause fires and explosions.

NOTICE

● Only use suitable service fluids for refilling. Never use the wrong service fluid. Failure to observe this warning can

result in serious malfunctions and engine damage.

Leaking service fluids can pollute the environment. Spilt service fluids must be collected in suitable

containers and disposed of properly and with respect for the environment.

495

Windscreen washer fluid

Fig. 1 In the engine compartment: washer fluid reservoir

cap.

The windscreen washer fluid level should be checked regularly and topped up as necessary.

A filter can be found in the feed throat of the washer fluid reservoir. The strainer keeps larger dirt particles away from

the washer jets when refilling. The filter should only be removed for cleaning. If the filter is damaged or cannot be

found when refilling, dirt particles will reach the system and will block the washer jets.

—Open the bonnet (→ In the engine compartment).

—The washer fluid reservoir is identified by the symbol on the cap→ Fig. 1.

—Check whether there is enough windscreen washer fluid in the reservoir.

—To top up, mix clean water, but not distilled water, with a washer fluid recommended by Volkswagen Commercial

Vehicles → . Observe the dilution instructions on the packaging.

—At low outside temperatures, add a special anti-freeze agent so that the fluid cannot freeze→

.

WARNING

Never mix coolant additive or other unsuitable additives into the washer fluid. These may leave an oily film on the

screen, restricting the field of vision.

● Use clean, clear water(not distilled water) with a suitable washer fluid.

● Add a suitable antifreeze agent to the washer fluid if necessary.

NOTICE

Improper mixing of cleaning agents may result in flocculation of the components, and thus clogging of the washer

jets.

● Never mix suitable cleaning agents with other cleaning agents.

496

Introduction

Engine oils are matched to the requirements of the engines, the emission purification systems, and the fuel quality.

Due to the operating principle of combustion engines, engine oil always comes into contact with combustion residues

and fuel, which has corresponding effects on the ageing process of the engine oil. The correct engine oil is important

for the function and service life of the engine. A special multigrade high-lubricity oil has been filled at the factory and

this can normally be used as an all-season oil.

Information on warning and indicator lamps that light up can be found in the troubleshooting sections at the end of

the chapter (→ Engine oil).

WARNING

Incorrect handling of engine oil can cause serious burns and other injuries.

● Always wear eye protection when handling engine oil.

● Engine oil is toxic. Always keep engine oil out of the reach of children.

● Store engine oil only in the closed original container. This also applies to used oil until it is disposed of.

● Regular contact with engine oil can damage the skin. Always wash skin that has been in contact with engine oil

thoroughly with water and soap.

● Engine oil becomes extremely hot when the engine is running and can scald skin severely. Always allow the

engine to cool down.

Leaking or spilt engine oil can pollute the environment. Spilt service fluids must be collected then disposed

of properly and in an environmentally responsible way.

497

Engine oil standards

Vehicles with an engine oil sticker

If you need to top up the engine oil, use an oil with the prescribed engine oil standard and engine oil viscosity

→ Fig. 1.

Fig. 1 Sticker showing engine oil standard and engine oil

viscosity (illustration).

1

2

Information about the engine oil standard.

Information about the engine oil viscosity.

The sticker showing the prescribed standard is located at the front of the engine compartment, on the side next to

1

the bonnet release → Fig. 2

.

Fig. 2 Installation location of the sticker for engine oil

standard and engine oil viscosity (illustration).

1

On the side next to the bonnet release mechanism.

If the prescribed engine oil → Fig. 1 is used, the engine oil level can be corrected as often as necessary (→ Engine oil).

Vehicles without an engine oil sticker

Information on the prescribed engine oil standard and engine oil viscosity can be obtained from a correspondingly

qualified workshop. If the engine oil needs to be topped up, use an engine oil with the prescribed engine oil standard

and engine oil viscosity. If the prescribed engine oil is used, the engine oil level can be corrected as often as

498

necessary, as follows (→ Engine oil).

If no engine oil is available according to the prescribed standard, in an emergency you may top up once with a

maximum of 0.5 l of the following, deviating standards until the next regular oil change:

—Petrol engines: standards VW 504 00 and ACEA C3 or API SP, viscosity 0 W-30.

—Diesel engines: standards VW 507 00 and ACEA C3, viscosity 0 W-30.

We recommend having the work carried out by a correspondingly qualified workshop.

NOTICE

Volkswagen Commercial Vehicles recommends use of approved engine oils in accordance with the corresponding

VW standard. The use of engine oils that do not meet these quality requirements can cause engine damage.

Changing engine oil

The engine oil must be changed on a regular basis. Always observe the service intervals applicable to your vehicle .

The engine oil and filter change should be carried out by a suitably qualified workshop due to the special tools and

knowledge required. This also applies to the disposal of used oil.

Additives in the engine oil can cause new engine oil to discolour quickly. This is normal and does not mean that the

engine oil should be changed more frequently.

WARNING

If, in exceptional cases, you have to carry out an oil change yourself, please note the following:

● Always wear eye protection.

● Always allow the engine to cool down completely to avoid burns.

● Keep your arms horizontal when unscrewing the oil drain plug with your fingers to prevent the emerging oil from

running down your arm.

● Use a suitable container when draining the used oil. It must be at least large enough to hold the entire filling

quantity of engine oil.

● Never store engine oil in empty food containers, bottles or any other non-original containers as people finding

these containers may not know that they contain engine oil.

● Engine oil is toxic and must be stored out of the reach of children.

Before changing the engine oil, first find out where old oil can be disposed of properly near

you.

Used oil must be disposed of in accordance with regulations governing the protection of the environment.

Never dispose of old oil in locations such as gardens, woods, sewerage systems, on streets and roads, or in

rivers and waterways.

499

Engine oil consumption

Engine oil consumption can vary from engine to engine and can change during the working life of an engine.

The vehicle may consume up to 1 litre of engine oil per 2,000 km, depending on how you drive and the conditions in

which the vehicle is used. In new vehicles, consumption is likely to be higher for the first 5,000 km. The engine oil

level must therefore be checked at regular intervals, preferably when refuelling and before long journeys.

When the engine is working hard, the engine oil level must be in the upper permissible area (→ Engine oil), for

instance during extended motorway journeys in summer or when climbing mountain passes

500

Checking the engine oil level and refilling engine oil

Fig. 1 In the engine compartment: engine oil filler opening

cap (illustration).

Vehicles with oil dipstick

Fig. 2 Oil dipstick with engine oil level marking

(illustration).

A

B

C

Engine oil level too high – observe the messages on the instrument cluster display or seek expert assistance.

Engine oil level within normal range.

Engine oil level too low – follow the messages in the instrument cluster display or add engine oil, if necessary.

Carry out the steps in the specified order→

, →

:

1. With the engine at operating temperature, park the vehicle on alevel surface to ensure that the engine oil

reading is correct.

2. Switch off the engine and wait at least 5 minutes for the engine oil to flow back into the sump.

3. Open the bonnet (→ In the engine compartment).

4. Identify the engine oil filler cap and oil dipstick. The oil filler neck is indicated by the → Fig. 1 symbol on the

cap, and the dipstick by its coloured handle. If you cannot find the cap and oil dipstick, please contact a

correspondingly qualified workshop.

501

5. Pull the dipstick out of the guide tube and wipe it off with a clean cloth.

6. Insert the oil dipstick into the guide tube again as far as it will go. If there is a marking on the oil dipstick, this

marking must fit in the corresponding groove at the top end of the guide tube when inserting.

7. Pull out the oil dipstick again and read the engine oil level on the dipstick as follows→ Fig. 2:

A

Engine oil level too high. Observe the messages on the instrument cluster display orseek expert assistance

as necessary →

.

B

Engine oil level within normal range. Engine oil can be topped up to theupper limit of this range, e.g. when

the engine is working hard . Continue to step 8 or 16.

C

Engine oil level is too low. Where applicable, follow any messages that are shown on the instrument cluster

display and make sure you add engine oil. Continue to step 8.

8. After reading off the engine oil level, push the oil dipstick back into the guide tube as far as it will go.

9. Unscrew the engine oil filler opening cap→ Fig. 1.

10. Gradually add engine oil in small quantities, no more than 0.5 l(0.5 qt) in total, or follow the recommendation in

the instrument cluster. Volkswagen Commercial Vehicles recommends use of approved engine oils in

accordance with the corresponding VW standard.

11. In order to avoid overfilling, wait for at least one minute after each refill step to allow the engine oil to flow into

the oil sump up to the marking on the engine oil dipstick.

12. Read the engine oil level from the dipstick again before refilling with a further small quantity of engine oil.

Never overfill with engine oil →

.

B

13. After filling, the engine oil level should be in the middle of the area→ Fig. 2

A

. The engine oil level must not

be in area → Fig. 2

→

.

A

14. If too much engine oil has been added unintentionally and the engine oil level is in area→ Fig. 2

start the engine. Seek expert assistance.

, do not

15. After refilling, close the engine oil filler opening with the cap→ Fig. 1.

16. Insert the oil dipstick into the guide tube as far as it will go. If there is a marking on the upper end of the oil

dipstick, this marking must fit in the corresponding groove at the top end of the guide tube when inserting.

17. Close the bonnet (→ In the engine compartment).

Vehicles without oil dipstick

The current engine oil level is displayed on the Infotainment system screen.

502

Fig. 3 Display of the Infotainment system: Engine oil level

display (illustration).

A

B

C

Do not refill engine oil.

Engine oil level within normal range.

Engine oil level low – refill engine oil.

Carry out the steps in the specified order→

, →

:

1. With the engine at operating temperature, park the vehicle on a level surface to ensure that the engine oil

reading is correct.

2. Switch off the engine and wait at least 5 minutes for the engine oil to flow back into the sump.

3. To check the engine oil level in the Infotainment system display, perform the following actions:

1. Switch on the ignition.

2. Tap the Menu function button.

3. Select and tap the Vehicle function button.

4. Tap the Selection function button.

5. Select vehicle status.

6. Tap the function buttons to select the menu optionOil level.

4. Necessary action after reading off the engine oil level in the Infotainment system display→ Fig. 3:

A

Do not refill engine oil.

B

Engine oil level within normal range. Engine oil can be topped up to theupper limit of this range, e.g. when

the engine is working hard . Continue with step 5 if necessary.

C

Engine oil level low.Refilling engine oil Continue to step 5.

5. Switch off the ignition.

6. Open the bonnet (→ In the engine compartment).

7. Identify the engine oil filler opening. The engine oil filler opening is identified by the symbol on the cap

→ Fig. 1. If you cannot find the cap, please contact a suitably qualified workshop.

8. Unscrew the engine oil filler opening cap.

9. Gradually add engine oil in small quantities, no more than 0.5 l(0.5 qt) in total, or follow the recommendation in

the instrument cluster. Volkswagen Commercial Vehicles recommends use of approved engine oils in

accordance with the corresponding VW standard.

10. In order to avoid overfilling, wait for at least one minute after each refill step to allow the engine oil to flow into

the oil sump up to the marking on the engine oil dipstick.

11. Read the engine oil level from the engine oil level display on the Infotainment system screen again before

refilling with a further small quantity of engine oil. Never overfill with engine oil →

.

B

12. After filling, the engine oil level should be in the middle of the area→ Fig. 3

. It should not be above

, i.e.

A

in area

, nor should it be above area

→

.

13. Do not start the engine if you have added an excessive amount of engine oil by accident and the engine oil level

A

is thus above area → Fig. 3

. Seek expert assistance.

14. After refilling, close the engine oil filler opening with the cap→ Fig. 1.

15. Close the bonnet (→ In the engine compartment).

503

WARNING

Engine oil can ignite if it comes into contact with hot engine components. It can cause fires, burns and other serious

injuries.

● Always ensure that the engine oil filler cap is securely tightened after refilling, and that the dipstick is properly

inserted back into the guide tube. This will prevent the engine oil from draining out on to hot engine components

when the engine is running.

● If engine oil is spilt on cold engine parts it can heat up and ignite when the engine is running.

NOTICE

● If the engine oil level is in area→ Fig. 2 or → Fig. 3

A

, do not start the engine. Seek expert assistance.

● When refilling service fluids, ensure that you pour the correct service fluids into the correct openings. The use of

incorrect service fluids could result in serious malfunctions and engine damage.

Troubleshooting

Engine oil pressure too low

The warning lamp flashes red. A message is shown on the instrument cluster display.

Do not drive on! The engine could otherwise be damaged.

1. Stop the vehicle as soon as possible and when safe to do so.

2. Switch off the engine.

3. Check the engine oil level (→ Engine oil).

Do not drive on or leave the engine running if the warning lamp is flashing even when the engine oil level is correct.

1. Seek expert assistance.

Engine oil level very low

The warning lamp flashes red. A message is shown on the instrument cluster display.

Do not drive on! The engine could otherwise be damaged.

1. Stop the vehicle as soon as possible and when safe to do so.

2. Switch off the engine.

3. Check the engine oil level (→ Engine oil).

4. Add engine oil gradually in small quantities until the engine oil level is back within the normal range or follow

the refill recommendation in the instrument cluster (→ Engine oil).

Engine oil level is too low

The indicator lamp lights up yellow. A message is shown on the instrument cluster display.

1. Stop the vehicle as soon as possible and when safe to do so.

2. Switch off the engine.

3. Check the engine oil level (→ Engine oil).

4. If necessary, gradually add engine oil in small quantities, no more than 0.5 l(0.5 qt) in total, or observe the

recommended refill amount in the instrument cluster.

504

Engine oil level too high

The indicator lamp lights up yellow. A message is shown on the instrument cluster display.

1. Stop the vehicle as soon as possible and when safe to do so.

2. Switch off the engine.

3. Check the engine oil level (→ Engine oil).

4. After checking the oil level, seek qualified professional assistance.

or

Fault in the engine oil system

The indicator lamp flashes yellow. A message is shown on the instrument cluster display.

1. Go to a correspondingly qualified workshop.

Introduction

You should only carry out work on theengine cooling system if you know exactly how to perform the required tasks,

are aware of the general safety procedures and have access to the correct equipment, service fluids and suitable

tools. Failing to carry out work correctly can cause serious injuries → . Have all work carried out by a

correspondingly qualified workshop if necessary.

WARNING

Coolant is toxic.

● Keep coolant only in the sealed original container and in a safe place.

● Never store coolant in empty food containers, bottles or any other non-original containers as people finding these

containers may then drink the coolant.

● Keep the coolant out of the reach of children.

● The amount of correct coolant additive used must be sufficient for the lowest ambient temperature that you

expect the vehicle to be exposed to.

● Coolant can freeze at extremely cold outside temperatures, causing the vehicle to break down. Vehicle occupants

with inadequate winter clothing could then freeze to death as the heating will also no longer function.

Coolant and coolant additives can pollute the environment. Spilt service fluids must be collected then

disposed of properly and in an environmentally responsible way.

505

Coolant specification

The cooling system is filled at the factory with a mixture of specially prepared water and at least 40%G 12 evo

coolant additive (TL-VW 774 L).

The proportion of coolant additive mustalways be at least 40% to protect the cooling system. If greater frost

protection is required in very cold climates, the proportion of anti-freeze additive can be increased. However, the

percentage of coolant additive should not exceed 55 %, as this would reduce the frost protection and the cooling

effect.

The coolant additive is dyed purple. The mixture of water and coolant additive provides anti-freeze protection down

to -25°C (-13°F), protects the alloy parts in the engine cooling system against corrosion, prevents limescale deposits

and significantly increases the boiling point of the coolant.

When refilling the coolant, a mixture ofdistilled water and at least 40%G 12 evo coolant additive must be used in

order to obtain the optimum corrosion protection →

.

WARNING

Insufficient anti-freeze in the coolant system can cause the engine to break down and cause serious injuries.

● The amount of correct coolant additive used must be sufficient for the lowest ambient temperature that you

expect the vehicle to be exposed to.

● Coolant can freeze at extremely cold outside temperatures, causing the vehicle to break down. Vehicle occupants

with inadequate winter clothing could then freeze to death as the heating will also no longer function.

NOTICE

If the liquid in the coolant expansion tank is not purple, the correct coolant has been mixed with another, unsuitable

coolant additive. Failure to observe this warning can result in serious malfunctions or damage to the engine and

cooling system.

● In such cases, have the coolant changed without delay.

● Never mix Genuine coolant additives with other coolants that have not been approved by Volkswagen

Commercial Vehicles.

Coolant and coolant additives can pollute the environment. Spilt service fluids must be collected then

disposed of properly and in an environmentally responsible way.

506

Checking the coolant level and refilling coolant

Preparations

1. Park the vehicle on a firm and level surface.

2. Allow the engine to cool down→

.

3. Open the bonnet (→ In the engine compartment).

You can identify the coolant expansion tank by the symbol on the cap→ Fig. 1.

Fig. 1 In the engine compartment: Coolant expansion tank

cap.

WARNING

Hot steam and hot coolant can cause serious burns.

Never open the bonnet if you can see or hear steam or coolant coming out of the engine compartment. Always wait

until no escaping steam or coolant can be seen or heard. Hot components can burn the skin.

● The cooling system is under pressure when the engine is hot. Never open the cap of the coolant expansion tank

when the engine is hot. Coolant may spray out and cause serious burns and other injuries.

● Turn the cap slowly and very carefully anticlockwise while exerting some downwards pressure on the cap.

● Always protect your face, hands and arms from hot coolant or steam by placing a large and thick cloth on the

cap of the coolant expansion tank.

Warning lamp

The warning lamp for the engine coolant will light up if the engine coolant level is too low.

1.

Do not drive on! Stop the vehicle as soon as possible and when safe to do so.

2. Immediately seek the assistance of a suitably qualified workshop. Volkswagen Commercial Vehicles

recommends a Volkswagen Commercial Vehicles dealership for this.

3. Check the coolant level and add coolant if the level is too low and there is no suitably qualified workshop in the

vicinity.

Checking the coolant level

507

Fig. 2 In the engine compartment: Mark on the coolant

expansion tank (illustration).

The coolant may be above the marked area upon delivery(new vehicles). This is normal. The coolant does not have to

be sucked off.

1. When the engine is cold, check the coolant level at the side markings of the coolant expansion tank→ Fig. 2.

The coolant level must be between the markings.

2. Refill coolant if the liquid level in the coolant expansion tank is below the minimum marking (“min”).

When the engine is warm, the engine coolant level may be slightly above the upper mark.

3. Do not add coolant if there is no longer any coolant visible in the coolant expansion tank→

.

Refilling coolant

1. Unscrew the lid carefully →

.

2. Refill only with new coolant that complies with the Volkswagen Commercial Vehicles specification (→ Coolant).

3. Add coolant up to the upper level marking.

4. The coolant level must be between the markings on the coolant expansion tank→ Fig. 2.

5. Close the cap tightly.

6. Check the coolant level after one day.

7. If the level drops below the minimum marking(“min”) again, consult a suitably qualified workshop and have the

cooling system checked. Volkswagen Commercial Vehicles recommends a Volkswagen Commercial Vehicles

dealership for this.

8. If in an emergency you do not have access to coolant with the required specification, do not use any other

coolant additive →

.

NOTICE

● Do not fill coolantover the top edge of the marked area. Otherwise the excess coolant will be pressed out of the

cooling system when the engine is hot and could cause damage.

● If, in an emergency, you do not have access to coolant with the required specifications, initially add onlydistilled

water. Then have the correct mixture ratio with the coolant additive restored as soon as possible by a suitably

qualified workshop. Volkswagen Commercial Vehicles recommends a Volkswagen Commercial Vehicles

dealership for this.

● Do not top up with coolant if there is no more coolant in the engine coolant expansion tank. Air could have

entered the cooling system. Do not drive on. Seek the assistance of a suitably qualified workshop. Failure to do so

508

can result in engine damage. Volkswagen Commercial Vehicles recommends a Volkswagen Commercial Vehicles

dealership for this.

● When refilling service fluids, make sure that you pour the correct service fluids into the correct openings. The use

of incorrect service fluids could result in serious malfunctions and engine damage.

Brake fluid

Fig. 1 In the engine compartment: brake fluid reservoir

cap.

Brake fluid will gradually absorb water from the surrounding air. The brake system will be damaged if there is too

much water in the brake fluid. The boiling point of the brake fluid is also considerably reduced by the water content.

Heavy use of the brakes may cause a vapour lock in the brake system if the water content is too high. Vapour locks

reduce levels of braking power, considerably increase braking distance and can even cause the brake system to fail

completely. Your own safety and that of other road users depends on having a brake system that functions properly

at all times →

.

Brake fluid specification

Volkswagen Commercial Vehicles has developed a brake fluid that has been optimised for the brake system in the

vehicle. To ensure the best possible operation of the brake system, Volkswagen Commercial Vehicles expressly

recommends the use of brake fluid compliant with VW standard 501 14.

Before using a particular brake fluid, check that the specifications printed on the container correspond to the vehicle

requirements.

Brake fluid that is compliant with VW standard 501 14 is available from Volkswagen Commercial Vehicles

dealerships.

If this brake fluid is not available and it is necessary to use another high-quality brake fluid instead, brake fluid that is

compliant with DIN ISO 4925 CLASS 6 or US standard FMVSS 116 DOT 4 can be used.

Not all brake fluids that are compliant withDIN ISO 4925 CLASS 6 or US standard FMVSS 116 DOT 4 have the same

chemical composition. Some of these brake fluids may contain chemicals that can damage or destroy brake system

components over time.

Brake fluid that is compliant with VW standard 501 14 fulfils the requirements ofDIN ISO 4925 CLASS 6 or

US standard FMVSS 116 DOT 4.

Brake fluid level

The brake fluid level must always be between the MIN and MAX markings on the brake fluid reservoir or above the

MIN marking →

.

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If the brake fluid level cannot be read exactly, please seek assistance from a correspondingly qualified workshop.

The brake fluid level drops slightly when the vehicle is being used as the brake pads wear and the brakes are

automatically adjusted.

Brake fluid level

The indicator lamp lights up red.

Brake fluid level is too low.

1.

Do not drive on! Check the brake fluid level.

2. Seek expert assistance if the brake fluid level is too low.

Brake fluid change

1. The brake fluid should be changed by a correspondingly qualified workshop.

Only new brake fluid that conforms with the required specification should be used.

WARNING

Brake failure or reduced braking efficiency can be caused by the brake fluid level being too low or by brake fluid that

is too old or unsuitable.

● Have the brake system and brake fluid level checked regularly or have the brake fluid changed!

● The refilled brake fluid must be new.

● Make sure that the correct brake fluid is used. Only use brake fluid that is explicitly compliant with VW standard

501 14. Any other brake fluid or a low-quality one can affect the functioning of the brakes and reduce their

effectiveness.

● If you do not have any brake fluid that is compliant with VW standard 501 14, use a high-quality brake fluid

compliant with DIN ISO 4925 or the US standard FMVSS 116 DOT 4 CLASS 6, but only in exceptional

circumstances.

WARNING

Brake fluid is toxic.

● In order to reduce the risk of poisoning, never use bottles or other containers to store brake fluid. These

containers could encourage other people to drink out of them, even if they are labelled otherwise.

● Always store brake fluid in its original sealed container and out of the reach of children.

NOTICE

Brake fluid that has leaked or been spilt can damage the vehicle paintwork, plastic parts and tyres.

● Wipe off brake fluid that has leaked or been spilled immediately from all parts of the vehicle.

Brake fluid can pollute the environment. Any spilt service fluids must be cleaned up and disposed of

properly.

Introduction

The 12-volt vehicle battery is a component of the electrical system in the vehicle.

Never carry out any work on the electrical system if you are not familiar with the necessary procedures and the

general safety requirements and only unsuitable tools are available → . Otherwise, have all work carried out by a

correspondingly qualified workshop if necessary. Serious injuries can be caused if work is carried out incorrectly.

Information on warning and indicator lamps that light up can be found in the troubleshooting sections at the end of

510

the chapter (→ 12-volt vehicle battery).

Location of 12-volt vehicle battery

The 12-volt vehicle battery is located in a battery recess in the front footwell on the left.

Explanation of the warnings on the 12-volt vehicle battery

Always wear eye protection!

Electrolyte is very corrosive and caustic. Always wear protective gloves and eye protection!

No fires, sparks, naked lights or smoking!

A highly explosive mixture of gases is given off when the vehicle battery is charging!

Always keep children away from electrolyte and the vehicle battery.

Always observe the owner's manual!

WARNING

Any work on the 12-volt vehicle battery and the electrical system can cause serious chemical burns, fire or electric

shocks. Always read the following warnings and safety information before carrying out any kind of work:

● Switch off the ignition and all electrical consumers before carrying out any work on the 12-volt vehicle battery

and also disconnect the negative cable from the 12-volt vehicle battery.

● Children should always be kept away from electrolyte and the 12-volt vehicle battery.

● Always wear eye protection and protective gloves.

● Electrolyte is very aggressive. It can burn the skin and can cause blindness. When working with the 12-volt

vehicle battery, ensure that your hands, arms and face in particular are protected from acid spillage.

● Never smoke and work near naked flames or sparks.

● When handling cables and electrical equipment, avoid generating sparks and electrostatic discharge.

● Never short circuit battery terminals.

● Never use a damaged 12-volt vehicle battery. The 12-volt vehicle battery can explode. Replace a damaged 12-

volt vehicle battery immediately.

● Never use a frozen 12-volt vehicle battery. Discharged 12-volt vehicle batteries can even freeze at temperatures

of approx. 0°C (+32°F). Replace the 12-volt vehicle battery immediately.

NOTICE

The housing of the 12-volt vehicle battery can be damaged by ultraviolet radiation.

● Do not expose the 12-volt vehicle battery to direct sunlight for an extended time.

NOTICE

The 12-volt vehicle battery can “freeze” and be destroyed if the outside temperature is very low and the vehicle is

stationary for a long time.

● Protect the 12-volt vehicle battery against frost if the vehicle is left standing for extended periods.

After starting the engine with a 12-volt vehicle battery that has been fully discharged or replaced, system

settings, e.g. time, date, personal convenience settings and programming, may have been changed or

deleted. Check and correct the settings as necessary once the 12-volt vehicle battery has been sufficiently

charged.

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Checking the electrolyte level of the 12-volt vehicle battery

The 12-volt vehicle battery is located in a battery recess in the front footwell on the left.

The acid level of the 12-volt vehicle battery cannot be checked for technical reasons.

1. Always have the 12-volt vehicle battery checked by a suitably qualified workshop.

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Charging, replacing, disconnecting and connecting the 12-volt vehicle battery

If you suspect that the 12-volt vehicle battery is damaged or faulty, consult a suitably qualified workshop and have

the 12-volt vehicle battery examined and, if necessary, replaced.

Charging the 12-volt vehicle battery

The 12-volt vehicle battery should always be charged by a correspondingly qualified workshop, as the technology

used in factory-fitted 12-volt vehicle batteries requires voltage-limited charging →

.

Replacing the 12-volt vehicle battery

The 12-volt vehicle battery has been developed to suit the conditions of its location and has special safety features.

If a 12-volt vehicle battery has to be replaced, the replacement part must be installed by a workshop qualified to do

this. For component information on size and the required maintenance, capacity and safety features, please contact a

correspondingly qualified workshop, which must have the necessary technical documentation and equipment. The

ventilation opening of the 12-volt vehicle battery must always be on the negative terminal side. The ventilation

opening on the positive terminal side must always be sealed.

Only maintenance-free 12-volt vehicle batteries compliant with the standards TL 825 06 and VW 7 50 73 should be

used. These standards must be dated October 2014 or later.

The 12-volt vehicle battery must always be replaced by a workshop qualified to do this, as the vehicle electronics

must be adapted as part of the replacement process. In addition, the battery parameters for functional safety were

determined only with the original equipment battery. Only correspondingly qualified workshops have the technology

required to carry out this adjustment and also the correct replacement batteries. The use of unsuitable batteries can

render the type approval invalid.

Disconnecting and connecting the 12-volt vehicle battery

The 12-volt vehicle battery cannot be disconnected and connected for technical reasons.

Always have the 12-volt vehicle battery disconnected and connected by a suitably qualified workshop.

Automatic switch-off for electrical consumers

An intelligent vehicle electrical system management function automatically implements a range of measures to

prevent the 12-volt battery from discharging under high loads:

—The performance of large electrical consumers may be reduced or they may be switched off completely.

The vehicle electrical system management function cannot always prevent the 12-volt vehicle battery from

discharging, e.g. if the ignition is switched on for an extended period with the engine off, or when the side or parking

lights are on when the vehicle is parked for long periods.

What causes the 12-volt vehicle battery to discharge?

The 12-volt vehicle battery will discharge if you use electrical consumers when the engine is switched off.

WARNING

Incorrectly securing the battery and using incorrect 12-volt vehicle batteries can cause short circuits, fire and

serious injuries.

● Always use maintenance-free and leak-proof 12-volt vehicle batteries that have the same properties,

specifications and dimensions as the factory-fitted 12-volt vehicle battery.

WARNING

513

A highly explosive mixture of gases is given off when the 12-volt vehicle battery is being charged.

● 12-volt vehicle batteries should only be charged in well-ventilated spaces.

● Never charge a 12-volt vehicle battery which is frozen or has been frozen. Discharged 12-volt vehicle batteries

can even freeze at temperatures of approx. 0°C (+32°F).

● The 12-volt vehicle battery must be replaced if it has ever frozen.

● In vehicles with the 12-volt vehicle battery in the interior: ensure that the gas discharge hose is connected

properly to the 12-volt vehicle battery. The breather hose must always be attached on the negative terminal side

of the 12-volt vehicle battery. If there is an opening on the positive terminal side of the 12-volt vehicle battery,

this must always be closed.

WARNING

Incorrectly connected cables can cause a short circuit.

● First connect the positive cable and then the negative cable.

NOTICE

● Never connect or disconnect 12-volt vehicle batteries if the ignition is switched on or the engine is running.

Never use a 12-volt vehicle battery that does not correspond with the vehicle’s specifications. This can damage

the electrical system or electronic components, which can cause electrical faults.

● Never connect equipment that supplies electric power, such as a solar panel or a battery charger, to the 12-volt

sockets or to the cigarette lighter to charge the 12-volt vehicle battery. This can damage the vehicle electrical

system.

Dispose of the 12-volt vehicle battery in accordance with the regulations. 12-volt vehicle batteries may

contain toxic substances such as sulphuric acid and lead.

Electrolyte can pollute the environment. Clean up any service fluid leakages and dispose of them

properly.

Troubleshooting

12-volt vehicle battery

The warning lamp lights up red. A message is shown on the instrument cluster display.

Do not drive on! This can result in damage to the electrical system.

1. Stop the vehicle as soon as possible and when safe to do so.

2. Switch off any electrical consumers that are not required.

3. Seek expert assistance.

The start/stop system cannot start the engine .

12-volt vehicle battery

The indicator lamp lights up yellow. A message is shown on the instrument cluster display.

1. Go to a correspondingly qualified workshop.

Or: Drive a short run to recharge the 12-volt vehicle battery.

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Introduction

The tyre monitoring system warns the driver when the tyre pressures get too low.

The following tyre monitoring systems are available for this vehicle:

Tyre Pressure Loss Indicator

—Various parameters (for example, rolling circumference) of all four wheels are monitored when driving using ABS

sensors (indirect measurement).

Reference pressure

The reference pressure for the tyre monitoring system is the tyre pressure of cold tyres with maximum load for the

factory-fitted tyres. The reference pressure corresponds to the information on the tyre pressure sticker (→ Tyre

pressure).

If the tyre pressure of all four tyres has been adjusted correctly, the Tyre Pressure Loss Indicator must be re-

synchronised (→ Tyre Pressure Loss Indicator). The reference pressure is then adapted to the current tyre pressure.

WARNING

The intelligent tyre monitoring system technology cannot overcome the laws of physics, and functions only within

the limits of the system. Incorrect handling of the wheels and tyres can lead to a sudden loss of pressure in the

tyres, tread separation and even tyre blow-out.

● Check the tyre pressure regularly and always maintain the specified pressure (→ Tyre pressure). If the tyre

pressure is too low, it is possible that the tyre temperature will increase to such an extent that the tread peels off

and the tyre bursts.

● Always maintain the correct cold tyre pressure as specified on the tyre pressure sticker (→ Tyre pressure).

● Check the tyre pressure regularly when the tyres are cold. If necessary, adjust the tyre pressure in the cold tyre to

the recommended tyre pressure for the tyres installed on your vehicle (→ Tyre pressure).

● Check your tyres regularly for signs of wear or damage.

● Never exceed the maximum speed and load permitted for the fitted tyres.

If the tyre pressure is too low, this will increase fuel consumption and tyre

wear.

When new tyres are driven at high speeds for the first time, they can expand slightly and trigger a one-off

pressure warning.

Old tyres should only be replaced by tyres that have been approved by Volkswagen Commercial Vehicles for

the vehicle type.

Do not rely only on the tyre monitoring system alone. Check your tyres regularly to ensure that they are

properly inflated and have no signs of damage, such as punctures, cuts, cracks, and blisters. Remove any

objects that have become embedded in the tyre tread but have not penetrated into the body of the tyre itself.

515

Tyre Pressure Loss Indicator

Functional description

The Tyre Pressure Loss Indicator uses data from the ABS sensors and other functions to check the speed of rotation

and the rolling circumference of the individual wheels.

The Tyre Pressure Loss Indicator does not work if there is a fault in the

ESC

or ABS (→ Brake support systems).

The rolling circumference may change:

—If the tyre pressure has been changed.

—If the tyre pressure is too low.

—If the tyre has structural damage.

—If the vehicle is loaded more heavily on one side.

—If snow chains have been fitted.

—If a temporary spare wheel has been fitted.

—If one wheel per axle has been changed.

The Tyre Pressure Loss Indicator may react with a delay or not display anything at all in the event of a sporty driving

style, when driving on snow-covered or icy roads or unpaved roads or when driving with snow chains.

The Tyre Pressure Loss Indicator shows a change in rolling circumference of the tyres with the warning lamp in the

instrument cluster.

The recommended tyre pressure for the factory-fitted tyres is indicated on the tyre pressure sticker on the driver's

door pillar (→ Tyre pressure).

The tyre pressure of all tyres, including the spare wheel or temporary spare wheel, must checked once every month

with cold tyres and must correspond to the specifications of the vehicle manufacturer on the tyre pressure sticker. If

the tyre size of the fitted tyres differs from the specified value on the type plate or tyre pressure sticker, the correct

tyre pressure must be determined.

The Tyre Pressure Loss Indicator does not replace regular maintenance and inspection of the tyres. The driver is

responsible for ensuring that the correct tyre pressure is maintained at all times, even if the Tyre Pressure Loss

Indicator does not yet display a warning about low tyre pressure.

The Tyre Pressure Loss Indicator also can display a malfunction in conjunction with the warning lamp. If the Tyre

Pressure Loss Indicator is malfunctioning, the warning lamp lights up for about a minute after the ignition was

switched on and then stays continuously lit.

If the Tyre Pressure Loss Indicator indicates a fault, the tyre pressure cannot be monitored correctly. The

malfunctioning of the Tyre Pressure Loss Indicator can have various causes, e.g. due to replacing a wheel or tyre.

When a wheel or tyre has been replaced, check whether the warning lamp is indicating a system malfunction to

ensure that the Tyre Pressure Loss Indicator is functioning properly (→ Tyre Pressure Loss Indicator).

Synchronising the Tyre Pressure Loss Indicator

The Tyre Pressure Loss Indicator must be re-synchronised under the following conditions:

—If the tyre pressures have been adapted.

—If one or more wheels have been replaced.

—If the wheels have been swapped round, e.g. from front to rear.

The Tyre Pressure Loss Indicator may be re-synchronised only if all tyres have the correct tyre pressure when

516

measured with cold tyres. To measure the cold tyre pressure, the vehicle must have been stationary for 3 hours or

driven only a few kilometres at a slow speed during this time.

Switch the ignition off and back on again if you receive a low tyre pressure warning. The Tyre Pressure Loss

Indicator can only then be re-synchronised.

1. Switch on the ignition.

2. Switch on Infotainment system if necessary.

3. Touch Vehicle in the Infotainment system.

4. Touch Vehicle (left).

5. Touch Tyres.

6. Tap SET .

7. Tap OK when all four tyre pressures correspond to the required values.

The system automatically synchronises and monitors the new values after at least 20 minutes of driving time at

different speeds.

Or: Touch Cancel to terminate the process.

The current tyre pressure is then not stored and the system is not re-calibrated.

WARNING

Incorrect calibration can cause the Tyre Pressure Loss Indicator to issue false warnings or to issue no warning

despite a dangerously low tyre pressure.

● Check that the tyre pressure of all tyres is correct before calibrating the Tyre Pressure Loss Indicator.

Troubleshooting for Tyre Pressure Loss Indicator

Low tyre pressure

The indicator lamp lights up yellow.

There is a loss of pressure in one or more tyres or the tyre is structurally damaged.

1.

Do not drive on!

2. Check and adjust all tyre pressures (→ Tyre pressure).

3. The damaged tyre should be replaced.

4. Re-synchronise the Tyre Pressure Loss Indicator (→ Tyre Pressure Loss Indicator).

5. If the fault persists, go to a correspondingly qualified workshop.

Fault in the Tyre Pressure Loss Indicator

The indicator lamp flashes for around 1 minute and then remains lit up yellow continuously.

There is a system fault.

1.

Do not drive on!

2. Switch the ignition off and then back on again.

3. Re-synchronise the Tyre Pressure Loss Indicator (→ Tyre Pressure Loss Indicator).

4. If the fault persists, go to a correspondingly qualified workshop.

WARNING

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Maintenance for Your Volkswagen Transporter Van Seventh Generation (2021-2025)

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