2014-2023 Volkswagen Passat SUV Checking and filling -> In the engine compartment User Manual
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Checking and filling -> In the engine compartment for Your Volkswagen Passat SUV Eight Generation (2014-2023)

Checking and filling  
In the engine compartment  
Safety precautions for working in the engine compartment  
The engine compartment is a potentially dangerous area in the vehicle. Only perform work in the engine compartment if you are familiar with the necessary  
procedures and the general safety precautions, and if the correct equipment, fluids, and suitable tools are available. Work performed incorrectly can result in  
serious injuries ⇒  
. Have all work performed by suitably qualified professionals if necessary. Volkswagen recommends contacting an authorized Volkswagen  
dealer or authorized Volkswagen Service Facility.  
Always make sure the vehicle is parked on a solid and level surface before performing any work in the engine compartment.  
WARNING  
Unintentional vehicle movement while working on the vehicle can cause serious injuries.  
Never work underneath the vehicle when it is not secured to prevent it from rolling. If working under the vehicle with the wheels touching the floor, the  
vehicle must be on a level surface and the wheels must be secured.  
If you must work underneath the vehicle, additionally support the vehicle securely with suitable stands. The vehicle jack is not sufficient for this because it  
could collapse, resulting in serious injuries.  
WARNING  
The engine compartment in any motor vehicle is a potentially dangerous area that can cause serious personal injury.  
Always work as cautiously and carefully as possible and follow the general safety instructions when working on the vehicle.  
Never perform work in the engine compartment if you are not familiar with the required procedures. If you are not sure what to do, have the work  
performed by an authorized Volkswagen dealer or authorized Volkswagen Service Facility qualified in this respect. Serious injuries can result if work is  
not performed correctly. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.  
Never open or close the hood if steam or engine coolant is escaping. Steam or hot engine coolant can cause serious burns. Always wait until you can no  
longer see or hear steam or engine coolant escaping from the engine compartment.  
Always allow the engine to cool down before opening the hood.  
Hot engine or exhaust system components can cause burns if touched.  
Before opening the hood, take note of the following:  
Set the parking brake and place the selector lever in the P position or the gearshift lever in the neutral position.  
Switch the ignition off and keep the vehicle key stored safely far enough from the vehicle (especially in vehicles with Keyless Access) so the  
ignition cannot be inadvertently switched on and the engine started.  
Always keep children away from the engine compartment and never leave them unattended.  
The engine cooling system is under pressure when the engine is hot. Never open the cap on the coolant expansion tank when the engine is hot. Engine  
coolant could spray out and cause serious burns or other injuries.  
Slowly and very carefully turn the cap on the coolant expansion tank counterclockwise while pressing down lightly on the cap.  
Always protect your face, hands, and arms from hot engine coolant or steam with a large, thick cloth.  
Do not spill any fluids on engine components or the exhaust system when adding fluids. Spilled fluids could cause a fire.  
WARNING  
The high voltage in the electrical system can cause electric shocks, burns, serious injuries, and death.  
Never short-circuit the electrical system. The 12 V vehicle battery could explode.  
To reduce the risk of an electric shock and serious injuries, never touch the electrical wires for the ignition system while the engine is running or being  
started.  
Never touch the electrical wires and connections of the gas discharge lamps.  
WARNING  
The engine compartment contains moving components that can cause serious injuries.  
Never reach into the radiator fan or into the area near the radiator fan. Touching the fan blades could cause serious injuries. The ventilator is  
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temperature-controlled and may switch on by itself even if the ignition is switched off.  
If work must be performed while starting the vehicle or when the engine is running, moving components such as the ribbed belt, alternator, and radiator  
fan, or the high-voltage system could cause potentially fatal injuries. Always be extremely careful.  
Always make sure that no parts of the body, jewelry, ties, loose clothing, and long hair can be caught in moving engine components. To reduce the  
risk of anything becoming caught in engine components, always remove any jewelry and/or ties, tie back long hair, and avoid wearing loose-fitting  
clothing when performing work.  
Always press the accelerator pedal extremely carefully and never press it without paying close attention. The vehicle can also start to move if the  
parking brake is set.  
Do not leave any items, such as cleaning cloths or tools, in the engine compartment. Objects left behind can cause malfunctions, engine damage, and  
fires.  
WARNING  
Additional insulation, such as covers in the engine compartment, can cause engine malfunctions or fires and result in serious injuries.  
Never cover the engine with blankets or other insulating materials.  
WARNING  
Fluids and some materials in the engine compartment are very flammable and can cause fires and serious injuries.  
Never smoke near the engine compartment.  
Never work near open flames or sparks.  
Never pour or spill fluids on the engine. Fluids could ignite on hot engine components and cause injuries.  
If work must be performed on the fuel system or electrical system, note the following:  
Always disconnect the 12 V vehicle battery.  
Make sure that the vehicle is unlocked when the 12 V vehicle battery is disconnected. Otherwise, the anti-theft alarm system will be activated.  
Never perform work near sources of heat, boilers, or other open flames.  
Always have a fully-functioning, checked fire extinguisher nearby.  
NOTICE  
Using incorrect fluids can result in malfunctions and engine damage.  
When filling or changing fluids, make sure the correct fluids are added to the correct reservoirs.  
Fluids leaking from the vehicle can cause environmental damage. Always check the ground under the vehicle for leaking fluids. If you see spots of fluid on the  
ground under the vehicle, have the vehicle checked by an authorized Volkswagen dealer or authorized Volkswagen Service Facility. Dispose of leaking fluids  
correctly. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.  
Preparing the vehicle for work in the engine compartment  
Always perform the following preparations in the specified sequence before all work in the engine compartment ⇒  
:
1. Park the vehicle safely on level and stable ground.  
2. Press and hold the brake pedal until the engine has stopped.  
3. Set the parking brake ⇒ Operating the parking brake.  
4. Move the selector lever into the P position ⇒ DSG® automated transmission: selecting the selector lever position.  
5. Stop the engine.  
6. If necessary, remove the vehicle key from the vehicle and store it outside of the vehicle so that the vehicle does not start accidentally.  
7. Let the engine cool down sufficiently.  
8. Always keep other people away from the engine compartment.  
9. Secure the vehicle against rolling away.  
WARNING  
235  
Failing to follow these instructions, which are provided for your own safety, can cause accidents and serious injuries.  
Always follow the steps in the instructions and the general safety precautions.  
Opening and closing the hood  
Fig. 134 In the driver's side footwell: Release lever for the hood (general example).  
Fig. 135 Above the radiator grille: Opening lever for the hood (general example).  
236  
Fig. 136 In the engine compartment: Hood support bracket.  
Fig. 137 On the engine hood: Hood support bracket.  
Opening the hood  
1. Open the driver door and pull the release lever in the direction of the arrow fig. 134. The hood will pop open due to spring force from the catch in the lock carr  
⇒
.
2. Lift the engine hood slightly while at the same time pushing the opening lever in the direction of the arrow fig. 135 to open the engine hood fully.  
3. Lift the hood support out of the bracket fig. 136 in the direction of the arrow and hook it into the opening fig. 137.  
Closing the hood  
1. Lift the hood slightly and hold it.  
2. Unhook the hood support from the opening fig. 136 and clip it back into the bracket fig. 135.  
3. Let the hood fall into the lock carrier catch from a height of approximately 8 inches (20 cm); do not press it down.  
If the hood does not close correctly, open the hood and try to close it again.  
When the hood is closed correctly, it will be flush with the surrounding sections of the vehicle body  
⇒
.
The hood will no longer be highlighted in the instrument cluster display ⇒ Display and the indicator light will turn off.  
WARNING  
If the hood is not closed correctly, it could open suddenly while driving and block the view through the windshield. This can cause accidents and serious injuries.  
After closing the hood, check that the catch is engaged correctly in the lock carrier.  
237  
If you realize while driving that the hood is not closed correctly, switch on the emergency flashers, carefully apply the brakes, decelerate carefully, stop  
immediately and close the hood.  
Do not open or close the hood if any persons are in the closing range of the hood.  
NOTICE  
To reduce the risk of damaging the hood and the windshield wiper arms, only open the hood when wiper mode is switched off and the wiper arms are in  
the base position.  
Display  
Fig. 138 In the instrument cluster display: the hood is open or not closed correctly (general example).  
An image in the instrument cluster display indicates if the hood is open or has not closed correctly fig. 138.  
Do not continue driving!  
1. If necessary, lift the hood and close it again.  
The image is also displayed when the ignition is switched off, and it disappears several seconds after the doors are closed and the vehicle is locked.  
WARNING  
Disregarding warning notifications could lead to breakdowns while driving, accidents, and serious injuries.  
Never ignore warning notifications.  
Stop the vehicle as soon as it is safe to do so.  
The image may vary depending on the version of the instrument cluster.  
Operating fluids and operating equipment  
All operating fluids and operating equipment, such as engine coolant, and vehicle batteries, are continuously being developed. For internal combustion engines  
also engine oils. Therefore, have fluids and operating equipment replaced by suitably qualified professionals. Volkswagen recommends contacting an authorized  
Volkswagen dealer or authorized Volkswagen Service Facility.  
WARNING  
Unsuitable operating fluids and operating equipment as well as the incorrect use of them can cause accidents, serious injuries, burns, and poisoning.  
Only store fluids in their sealed original containers.  
Never use empty food cans, bottles, or other containers to store fluids, because someone could drink the fluids by mistake.  
Keep children away from all fluids and operating equipment.  
Always read and heed the information and warnings on the packaging for the fluids.  
When using products that emit harmful vapors, always work outdoors or in a well-ventilated area.  
238  
NOTICE  
Using incorrect fluids can result in malfunctions and engine damage.  
When filling or changing fluids, make sure the correct fluids are added to the correct reservoirs.  
Leaking operating fluids can pollute the environment. Collect any leaking operating fluids in suitable containers and dispose of them correctly according to  
environmental regulations.  
Washer fluid  
Fig. 139 In the engine compartment: cap on the washer fluid reservoir.  
Check the washer fluid level regularly and fill if necessary.  
There is a screen in the filler tube in the windshield washer fluid reservoir. The screen keeps large particles of contaminants from entering the washer nozzles when  
you refill the washer fluid. Take the screen out only to clean it. If the screen is damaged or missing, dirt particles could enter the system when adding fluid, which  
could block the windshield washer nozzles.  
1. Open the hood  
⇒ Opening and closing the hood.  
symbol on the cap fig. 139.  
2. The washer fluid reservoir is identified with the  
3. Check that there is enough windshield washer fluid in the reservoir.  
4. To add fluid, mix clean water, not distilled water, with a suitable windshield cleaner  
⇒
. Follow the mixing instructions on the packaging.  
5. When the outside temperatures are cold, an anti-freeze agent should be added to the water so that it does not freeze  
⇒
.
Depending on the vehicle and vehicle equipment, the washer fluid reservoir capacity is approx. 3.1–7.9 quarts (3.0–7.5 liters).  
WARNING  
Never add coolant additive or similar unsuitable additives to the windshield washer fluid. Otherwise, an oily film can build up on the windshield, which would  
impair visibility considerably.  
NOTICE  
Never mix suitable cleaning agents with other cleaning agents. Otherwise, the components could coagulate and create a blockage in the washer nozzles.  
Engine oil  
Introduction  
The engine oils are determined based on the requirements of the engines, emissions control systems, and the fuel quality. On all combustion engines, the engine o  
comes into contact with combustion residue and fuel, which affects the aging of the engine oil. Using the correct engine oil is essential for the function and service  
life of the engine. The vehicle is filled at the factory with a special multi-purpose, low-viscosity oil that can generally be used year-round.  
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Related Topics

Checking and filling
Washer fluid Engine oil Engine coolant Brake fluid 12 V vehicle battery

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