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Table of Contents > Check and reset > In the engine compartment

VW Tiguan 2021 Owner's Manual ➜ In the engine compartment

than improper, both the ball hitch and the vehicle  
could be damaged.  
check and reset  
in the engine bay  
Instead of a tow bar, use a tow bar.  
tow bar  
Safety warnings for working in  
the engine compartment  
The vehicle's engine bay is a dangerous area.  
Only carry out work in the engine compartment  
yourself if you are familiar with the necessary  
operations and the generally valid safety measures,  
and if you have the appropriate tools, media and  
operating fluids. Improper work can lead to serious  
injuries ÿ . If necessary, have all work carried out by  
a suitably qualifi ed specialist workshop. Volkswagen  
recommends a Volkswagen dealer.  
Before carrying out any work in the engine  
compartment, always park the vehicle on level and  
firm ground, taking all necessary safety precautions.  
WARNING  
Any accidental movement of the vehicle during  
maintenance work could cause serious injury.  
· Never carry out work under the vehicle without  
having previously immobilized it to prevent it  
from moving. When work is carried out under  
the vehicle with the wheels on the ground, the  
vehicle must be on a level surface and the  
wheels must be blocked.  
· If you have to work under the vehicle, additionally  
support it securely with suitable stands. The  
jack is not suitable for this purpose and may  
not resist, which could cause serious injury.  
· The Start-Stop system must be switched off  
manually.  
WARNING  
The engine compartment of any vehicle is a  
dangerous area where serious injury can occur!  
· When carrying out work, always be extremely  
careful and prudent, and take into account  
generally valid safety measures.  
· Never carry out work in the engine compartment  
if you are not familiar with the necessary  
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operations. If you are not sure what to do, order  
in the engine bay  
331  
the necessary work to a specialized workshop qualified  
WARNING  
for it. If work is not carried out properly, serious injuries  
may result. Volkswagen recommends a Volkswagen  
dealer.  
The electrical system is under high voltage and can cause  
electric shock, burns, serious injury and death!  
· Never short-circuit the electrical system. The 12 volt  
battery could explode.  
· Never open or close the front hood if steam or coolant is  
escaping. Hot steam or coolant can cause severe burns.  
Always wait until you can no longer see and hear steam  
or coolant escaping from the engine compartment.  
To reduce the risk of electric shock  
electric shock and serious injury, never touch the  
electrical wires of the ignition system while the engine  
is running or when it is started.  
· Before opening the front hood, always wait for the engine  
to cool down.  
· Never touch electrical cables or  
electrical connections of gas discharge lamps.  
· If you touch hot engine or exhaust components, you could  
get skin burns.  
WARNING  
· Before opening the front hood, note the following:  
There are rotating parts in the engine compartment that  
could cause serious injury.  
— Engage the electronic parking brake  
Never put your hand into the fan  
and place the selector lever in position P or the  
of the radiator or in the area of the radiator. Touching  
the rotor blades can cause serious injury.  
gear lever in point  
dead.  
The fan is activated depending on the temperature and  
could start automatically, even with the ignition off.  
— Switch off the ignition and store the vehicle key in a  
safe place and at a safe distance from the vehicle  
so that, especially if the vehicle has the "Keyless  
Access" system, it is not possible to inadvertently  
switch on the ignition and start the combustion  
engine running.  
· If you have to carry out work while the engine is  
starting or running, be aware that rotating parts such  
as the poly-V belt, alternator or radiator fan, and the  
high-voltage ignition system represent They feel mortal  
danger. Always act with the utmost caution.  
— Always keep children away from the  
engine compartment and never leave them unattended.  
· When the engine is hot, its cooling system is under  
pressure. Never open the engine coolant expansion  
tank cap when the engine is hot. Failure to do so could  
cause coolant to splatter and cause serious burns and  
other injuries.  
— Always make sure that no part of the body, no  
jewelry or necktie you are wearing, no clothing if it  
is loose, no hair if it is long, can get caught in the  
rotating parts of the engine. Before working in the  
engine compartment, remove any jewelry or necktie  
you may be wearing, tie up your hair if it is long,  
and fasten loose-fitting clothing to prevent it from  
becoming entangled in engine parts.  
— Turn the cap of the coolant expansion tank slowly  
and very carefully in an anti-clockwise direction  
while exerting light pressure on it at the same time.  
— Never step on the accelerator without paying  
attention, always do so with the utmost caution.  
— Always protect your face, hands and  
warm coolant or steam arms with a large, thick rag.  
The vehicle could start moving even with the  
electronic parking brake engaged.  
· When replenishing operating fluids, avoid getting them  
on parts of the engine or the exhaust system. These  
liquids could cause a fire.  
· Never leave any object, such as rags or tools, in the  
engine compartment. These objects could cause  
functional failure, engine damage and fire.  
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check and reset  
WARNING  
Prepare the vehicle for work in  
the engine compartment  
Placing additional insulating items (eg blankets)  
in the engine compartment could prevent proper  
engine operation, could cause a fire, and could cause  
serious injury.  
Before carrying out work in the engine compartment,  
always carry out the following operations in the order  
indicated ÿ :  
· Never cover the motor with blankets or other insulating  
materials.  
1. Place the vehicle on level and firm ground taking  
the necessary safety precautions.  
WARNING  
2. Depress the brake pedal and hold it until the engine  
has stopped.  
Operating fluids and some materials in the engine  
compartment are highly flammable and can cause  
fire and serious injury!  
3. Engage the electronic parking brake ÿ p. 206.  
· Never smoke near the engine compartment.  
4. Move the selector lever to position P ÿ p. 161.  
· Never work near naked flames.  
shielded or sparking.  
5. Shut off the engine.  
· Never spill operating fluids on the motor. These  
could ignite on contact with hot engine parts  
and cause injury.  
6. If necessary, remove the vehicle key from the  
vehicle and store it outside so as not to  
inadvertently start the vehicle.  
7. Wait for the engine to cool down sufficiently.  
· When you have to carry out work on the fuel system  
or electrical system, note the following:  
8. Always keep bystanders away from the front  
compartment.  
9. Immobilize the vehicle so that it cannot roll.  
— Always disconnect the 12 volt battery.  
Make sure the vehicle is unlocked when  
you disconnect the 12 volt battery, otherwise  
the anti-theft alarm will go off.  
WARNING  
Do not ignore these important instructions for your  
safety, otherwise accidents and serious injuries could  
occur.  
— Never carry out work near heaters, continuous  
heaters or open flames.  
· Always follow the instructions and always take into  
account generally valid safety measures.  
· Always have on hand a fire extinguisher that is  
working and has been checked.  
WARNING  
Using the wrong operating fluids can cause serious  
malfunctions and engine damage.  
· When replenishing or changing operating fluids,  
make sure you pour the correct liquids into the  
correct fill ports.  
Operating fluids escaping from the vehicle  
pollute the environment. Thus,  
Look regularly under the vehicle. If there are  
stains of operating fluids on the floor, go to a duly  
qualified specialized workshop and have the vehicle  
checked. If any operating fluid leaks out, dispose of it  
properly. Volkswagen recommends a Volkswagen  
dealer.  
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in the engine bay  
333  
If the front hood does not close properly, lift it up  
again and close it again.  
Open and close the front hood  
When the hood is closed tightly, it sits flush with  
adjoining body parts. The front bonnet is no longer  
highlighted on the instrument panel display, or the  
display goes out ÿ p. 334.  
WARNING  
If the front hood is not closed properly, it can  
open unexpectedly while driving and impede  
forward visibility. This can lead to accidents and  
serious injuries.  
· After closing the front hood, make sure that the  
lock has been properly engaged in the lock  
holder.  
Fig. 234 In the driver's side footwell: bonnet release  
lever (schematic illustration).  
· If you notice while driving that the front bonnet  
is not closed correctly, connect the emergency  
flashers, brake carefully, stop the vehicle as  
soon as possible and close the bonnet.  
· Open or close the front hood only when there is  
no one in the area of its travel.  
WARNING  
· To prevent damage to the front hood and  
wiper arms, open the bonnet only when the wiper  
arms are off and the wiper arms are on the  
windscreen.  
Fig. 235 Above the radiator grille: front bonnet  
operating lever.  
display indication  
open front hood  
1. Open the driver's door and pull the release lever  
in the direction of the arrow ÿ fig. 234. The front  
bonnet disengages from the latch holder lock ÿ .  
2. Raise the bonnet, press the operating lever and  
fully open the bonnet ÿ fig. 235. The bonnet is  
held open by the pressurized gas spring.  
Close the front hood  
1. Pull the front hood down until the resistance of the  
pressurized gas spring is overcome ÿ .  
Fig. 236 On the instrument panel display: bonnet open  
or not closed correctly (schematic representation).  
2. Drop the bonnet into the latch holder lock from  
a height of approx. 20 cm (8 inches).  
Don't press it below!  
334  
check and reset  
If the bonnet is open or not closed properly, it is  
indicated on the instrument panel display by a symbolic  
representation ÿ fig. 236.  
· If you use products that emit harmful vapors, always  
work outdoors or in a well-ventilated area.  
WARNING  
Do not continue the march!  
Using the wrong operating fluids can cause serious  
malfunctions and engine damage.  
1. If necessary, raise the bonnet again and close it  
again.  
The display is also displayed with the ignition switched  
off and goes out a few seconds after the vehicle has  
been locked with the doors closed.  
· When replenishing or changing operating fluids,  
make sure you pour the correct liquids into the  
correct fill ports.  
Escaping operating fluids can pollute the  
environment. If you go out to  
WARNING  
any operating liquid, collect it in an appropriate  
container and dispose of it properly and in an  
environmentally friendly manner.  
Ignoring the displayed warnings could result in the  
vehicle being stopped in traffic, and could result in  
accidents and serious injuries.  
· Never ignore warning signs.  
· Stop the vehicle as soon as possible and  
guro.  
window washer fluid  
The symbolic representation may vary  
depending on the version of the instrument panel.  
cough.  
Operating fluids and media  
All operating fluids and media, such as engine  
coolant or vehicle batteries, are subject to continuous  
development. In the case of combustion engines, also  
engine oils. For this reason, go to a duly qualified  
specialized workshop when you have to change any  
fluid or operating medium. Volkswagen recommends  
a Volkswagen dealer.  
Fig. 237 In the engine compartment: window washer  
fluid tank cover.  
WARNING  
Check the level of the window washer fluid regularly  
and top up if necessary.  
Inappropriate or improperly used fluids and  
operating media can cause serious accidents,  
injuries, burns and poisoning.  
There is a strainer in the window washer fluid tank  
filler neck. When filling the tank, this sieve retains  
large dirt particles from reaching the ejectors. Do not  
remove the sieve except to clean it. If the strainer is  
damaged or not fitted, these dirt particles could get  
into the system during filling and clog the washer jets.  
· Store operating fluids only in their original tightly  
closed containers.  
· Never store operating fluids in food cans, bottles or  
other empty containers, as they could be  
swallowed by someone.  
1. Open the front hood ÿ p. 334.  
Keep liquids and operating media out  
out of the reach of children.  
2. You can recognize the window washer fluid reservoir  
by the symbol on the cover ÿ fig. 237.  
Always read and take into account the information  
and the warnings that appear on the containers  
of the operating liquids.  
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3. Check if there is still enough fluid in the reservoir.  
335  
Operating fluids and media  

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