Maintenance and Breakdown -> Coolant for Your Volkswagen ID.5 SUV First Generation (2021-2025)

2. Use only clear water with a suitable alcohol-based windscreen washer fluid for refilling. Observe the mixture instructions on the  
packaging of the windscreen washer fluid , →  
.
3. At low outside temperatures, add a special anti-freeze agent so that the fluid cannot freeze. Observe the mixture instructions on  
the packaging of the anti-freeze agent.  
There is a strainer in the filler throat of the washer fluid reservoir. The strainer keeps large dirt particles away from the washer jets  
when refilling →  
.
The filling quantity of the washer fluid reservoir is approx. 3.0 l (approx. 3.1 qt) depending on the vehicle and equipment.  
Do not use distilled water to refill the washer fluid reservoir. This is a prerequisite for enabling monitoring of the washer fluid  
level.  
WARNING  
Unsuitable additives in the washer fluid can leave an oily film on the vehicle windows. This can reduce visibility and increase the risk  
of accidents and can cause serious or fatal injuries.  
Never mix coolant additive or other unsuitable additives into the washer fluid.  
NOTICE  
Use of an acidic cleaning agent can lead to damage and to failure of the washer jets.  
Never fill an acidic cleaning agent, e.g. a vinegar-based cleaner, into the washer fluid reservoir.  
NOTICE  
Mixing different windscreen washer fluids can lead to flocculation of ingredients in the fluid and cause clogging of the washer jets.  
Use only suitable alcohol-based windscreen washer fluids.  
Never mix different windscreen washer fluids with each other.  
NOTICE  
When refilling windscreen washer fluid, dirt particles can enter the washer fluid reservoir if the strainer is damaged or not present.  
The washer jets could become clogged.  
Remove the strainer only for cleaning.  
Replace the strainer if it is damaged or missing.  
You should only carry out work on the 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 suitably qualified workshop if necessary. Volkswagen recommends using an  
authorised Volkswagen repairer.  
WARNING  
Coolant is toxic. Contact with coolant, and especially ingestion of coolant, can cause serious or fatal injuries.  
Seek medical attention immediately after swallowing coolant.  
Seek medical attention if you have health problems after working with coolant.  
Always keep coolant out of the reach of children and only in the original sealed container.  
Never store coolant in empty food containers, bottles or any other non-original containers as people finding these containers may  
then drink the coolant.  
Avoid regular contact with coolant to avoid damaging the skin.  
Protect skin, face and especially eyes while working with coolant.  
Do not eat, drink or smoke when working with coolant.  
Wash your skin with soap and water after working with coolant.  
WARNING  
Coolant can freeze at extremely cold outside temperatures, causing the vehicle to break down. This can lead to the heating no longer  
working in the vehicle. Vehicle occupants with inadequate winter clothing could freeze to death.  
Make sure that the quantity of coolant additive is adjusted to the lowest expected ambient temperature at which the vehicle will  
be operated.  
Use only coolant additives that have been approved by the manufacturer.  
Coolant and coolant additives can pollute the environment.  
Collect any service fluids that escape or are spilled and dispose of them in a proper and environmentally responsible  
manner.  
The cooling system is filled at the factory with a mixture of specially prepared water and at least 40% coolant additive G12evo (TL 744-  
L).  
The proportion of coolant additive must always 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 a violet colour. The mixture of water and a coolant additive offers anti-freeze protection down to around  
-25°C (around -13°F), protects the alloy parts in the cooling system against corrosion, prevents limescale deposits and significantly  
increases the boiling point of the coolant.  
When refilling the coolant, a mixture of distilled water and at least 40% of the coolant additive G12evo must be used in order to obtain  
the optimum corrosion protection →  
.
NOTICE  
The colour of the coolant results from mixing the violet coolant additive with distilled water. If the liquid in the coolant expansion  
tank is not violet but brown, for example, the suitable coolant has been mixed with another unsuitable coolant. This can result in  
serious malfunctions or damage to the drive and cooling system.  
Use only coolant additives that have been approved by the manufacturer.  
Have the coolant replaced immediately by a suitably qualified workshop if it has a brown colour. Volkswagen recommends using an  
authorised Volkswagen repairer.  
When adding coolant additives, never mix genuine coolant additives with other coolant additives that have not been approved by  
Volkswagen.  
NOTICE  
The coolant must always have the correct mixing ratio. If the mixing ratio is not correct, serious malfunctions or damage to the drive  
and cooling system may result.  
Have the correct mixing ratio checked by a suitably qualified workshop and restored if necessary if there is any doubt about the  
mixing ratio. Volkswagen recommends using an authorised Volkswagen repairer.  
Preparations  
1. Park the vehicle safely on a horizontal and firm surface (→ Parking).  
2. Allow the electric drive to cool down →  
.
3. Open the bonnet.  
The coolant expansion tank can be recognised by the red symbol on the cap → Fig. 1.  
In the bonnet space: coolant expansion tank cap  
(illustration).  
WARNING  
Escaping hot steam or hot coolant and hot vehicle parts can cause severe burns.  
Never open the bonnet if you can see or hear steam or coolant coming out of the bonnet space.  
Always wait until you can no longer see or hear steam or coolant coming from the bonnet space.  
WARNING  
The cooling system is under pressure when the electric drive is hot. If the cap is opened carelessly, coolant can spray out and cause  
severe burns or fatal injuries.  
Never open the cap of the coolant expansion tank when the electric drive is hot.  
Always protect your face, hands and arms from hot coolant or steam with a large, thick cloth if you have to open the cap of the  
coolant expansion tank.  
Turn the cap of the coolant expansion tank slowly and very carefully anticlockwise while exerting slight downwards pressure on the  
cap.  
Checking coolant level  
In the bonnet space: markings on the coolant expansion tank  
(illustration).  
The coolant may be above the marked area upon delivery of new vehicles or after repairs to the cooling system. This is normal. The  
coolant does not have to be sucked off.  
The coolant level cannot be checked accurately in all models as visibility of the fluid level in the coolant expansion tank may be  
obstructed. If the coolant level cannot be read exactly, contact a suitably qualified workshop. Volkswagen recommends using an  
authorised Volkswagen repairer.  
1. Check the coolant level at the side markings of the coolant expansion tank when the coolant is cold → Fig. 2. The coolant level  
must be between the marks.  
2. Have coolant added if the fluid level in the coolant expansion tank is below the minimum marking “min. If the coolant is warm,  
the 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 →  
.
Topping up coolant  
1. Unscrew the lid carefully →  
.
2. Add only new coolant in accordance with the Volkswagen specification up to the upper level marking. (→ Coolant). After adding  
the coolant, the coolant level must be between the markings on the coolant expansion tank → Fig. 2.  
3. Close the cap tightly.  
4. Check the coolant level after one day. If the level of the coolant expansion tank drops below the “min” marking again, visit a  
suitably qualified workshop and have the cooling system checked. Volkswagen recommends using an authorised Volkswagen  
repairer.  
If in an emergency you do not have access to coolant in the required specification, add only distilled water initially. Then have the  
correct mixture ratio with the coolant additive restored by a suitably qualified workshop as soon as possible. Volkswagen recommends  
using an authorised Volkswagen repairer →  
.
NOTICE  
Coolant expands when it is heated. If coolant is added so that the level is above the marked area, excess coolant could escape and  
damage the vehicle.  
Do not fill coolant above the top edge of the marked area on the coolant expansion tank.  
NOTICE  
Air may have entered the cooling system if there is no longer any coolant in the coolant expansion tank. This could cause damage to  
the electric drive.  
Do not drive on.  
Do not add coolant.  
Seek expert assistance.  
NOTICE  
Use of water other than distilled water can cause considerable corrosion damage in the engine due to the chemical substances  
contained in the water. This can lead to failure of the electric drive.  
Refill only with distilled water!  
Have the fluid in the cooling system completely replaced by a suitably qualified workshop if you have not refilled with distilled  
water. Volkswagen recommends using an authorised Volkswagen repairer.  
NOTICE  
Use of the wrong service fluids can cause serious malfunctions and damage the electric drive.  
When refilling or replacing service fluids, ensure that you pour the correct service fluids into the corresponding openings.  
The coolant temperature is too high or the coolant level is too low  
The warning lamp flashes red. A message is shown on the instrument cluster display.  
Do not drive on! This can result in damage to the electric drive.  
1. Stop the vehicle as soon as possible and when safe to do so (→ Parking).  
2. Deactivate the vehicle’s drive system.  
3. Allow the electric drive to cool down.  
4. Check the coolant level (→ Coolant).  
5. Do not drive on if the warning lamp does not go out even though the coolant level is correct. Deactivate the vehicle’s drive  
system immediately.  
6. Do not drive on!  
Seek expert assistance.  
together with  
Electric drive overheated  
The warning lamp flashes red. A message is shown on the instrument cluster display.  
Do not drive on!  
1. Stop the vehicle immediately as soon as it possible and safe to do so (→ Parking).  
2. Deactivate the vehicle’s drive system.  
3. Seek expert assistance immediately.