check engine VOLKSWAGEN TOUAREG 2012 Owner's Manual

Flashes
Temperature
gauge nee-
dle
⇒ fig. 318
Possible cause Proper response
(B)
Normal range
Engine coolant
level too low.
Check the engine coolant
level after the engine has
cooled down and add engine
coolant if low.
If the engine coolant level is
correct or the problem con-
tinues after adding coolant,
do not drive any farther.
Contact an authorized
Volkswagen dealer or author-
ized Volkswagen Service
Facility.
These instructions apply only
when the coolant tempera-
ture stays in the normal
range. Stop immediately if
the needle goes into the red
warning zone (C).
–
Engine coolant
system malfunc-
tion.

x If the fluid in the engine coolant reservoir is any color but pink, then G 13 was mixed with a different engine coolant. If this is the case, the engine coolant must be replaced immediately. Otherwise serious malfunctions or engine damage can occur!
Engine coolant and engine coolant additives can pollute the environment. Collect leaking operat-ing fluids and dispose of them properly in accordance with applicable environmental laws and regula-tions.
Checking engine coolant level and topping off

Fig. 319 Coolant expansion tank in the engine compartment.

Fig. 320 Coolant expansion tank cap in the engine compartment.

Checking engine coolant level
x When the engine is cold, check the engine coolant level relative to the marking on the side of the
expansion tank ⇒ fig. 319.
x If the coolant level in the tank is below the minimum mark (“min”), add coolant. When the engine is warm, the engine coolant level may be slightly above the upper edge of the marked range.
Adding engine coolant
x Always protect face, hands and arms from hot escaping coolant or steam by covering the cap with a large, thick rag.
x Carefully unscrew the cap ⇒ .
x Add only new engine coolant according to Volkswagen specifications ( Engine coolant specifica-
tions) ⇒ .
x The engine coolant level must be inside the marks on the side of the reservoir ⇒ fig. 319. Do not
fill above the top edge of the filling range! ⇒ .
x Screw the lid tightly.
x Even in an emergency, do not use any other kind of coolant additive if engine coolant meeting Volkswagen specifications (Engine coolant specifications) is unavailable! Instead, add distilled water
only ⇒ . As soon as possible, have the correct coolant ratio restored using engine coolant that
meets Volkswagen specifications ⇒  Engine coolant specifications.
WARNING
Hot steam and hot engine coolant can cause serious burns.
x Never open the hood if you see steam or coolant escaping from the engine compartment. Always wait until you no longer see or hear steam or coolant escaping from the engine.
x Always let the engine cool down completely before carefully opening the hood. Hot com-ponents will burn skin on contact.
x When the engine has cooled down and you are ready to open the hood:
– Apply the electronic parking brake and shift the transmission into Park (P).
– Take the vehicle key out of the ignition.
– On vehicles with Keyless Access , make sure that the remote control vehicle key is out of range of the vehicle and that the vehicle cannot be started by depressing the starter
button ⇒  Starter button.
– Always keep children and others away from the engine compartment and never leave them unsupervised.
x The engine coolant system is under pressure when the engine is hot. Never unscrew the coolant expansion tank cap when the engine is hot. Hot coolant can spray out and cause severe burns and other serious injuries.
– Turn the cap slowly and very carefully in a counterclockwise direction while applying light downward pressure on the top of the cap.
– Always protect your face, hands, and arms from hot escaping coolant or steam by covering the cap with a large, thick rag.
x Never spill fluids on the engine or exhaust system when refilling. Spilling fluids onto hot parts of the engine or exhaust system can cause a fire. Under some conditions, the ethylene glycol in engine coolant can catch fire.

NOTICE
x Use distilled water only when adding coolant! All other types of water contain chemical compounds that can cause extensive corrosion damage to the engine. This can even lead to engine failure. If you have added non-distilled water, take the vehicle immediately to an author-ized Volkswagen dealer or an authorized Volkswagen Service Facility to have the coolant system drained, flushed, and refilled completely with the proper coolant.
x Refill engine coolant only up to the top edge of the marked fill range ⇒ fig. 319. Excess engine coolant may be forced out of the engine cooling system when it gets hot and cause damage.
x In the case of significant engine coolant loss, refill engine coolant only when the engine is completely cooled down. Significant engine coolant loss is a sign of leaks in the cooling sys-tem. Have the engine cooling system checked immediately by an authorized Volkswagen deal-er or an authorized Volkswagen Service Facility. Otherwise the engine may be damaged!
x When changing or topping off operating fluids, make sure that you pour the fluids into the correct reservoirs. Serious malfunctions and engine damage can result if you pour operating fluids into the wrong reservoir.

Emergency starting and starting the engine with a very weak vehicle battery or after the vehicle battery has been replaced may change or delete system settings (including time, date, personal con-venience settings and programming). Check the settings and correct as necessary once the vehicle battery has built up a sufficient charge.
Warning light

Lights
up Possible cause Proper response
%0# Engine control malfunction
(Electronic Power Control).
Have engine checked immediate-
ly by an authorized Volkswagen
dealer or authorized Volkswagen
Service Facility.
D Glow plug preheating before
diesel engine start-up.
B
Engine control/monitoring
system malfunction (engine
Malfunction Indicator Light -
MIL).
Ease off the accelerator. Careful-
ly drive to the nearest authorized
Volkswagen dealer or authorized
Volkswagen Service Facility.
Have engine checked.

Flashes Possible cause Proper response
B Misfire, which can damage
the catalytic converter.
Ease off the accelerator. Care-
fully drive to the nearest author-
ized Volkswagen dealer or au-
thorized Volkswagen Service
Facility. Have engine checked.

When the ignition is switched on, several warning and indicator lights come on briefly for a function check. They go out after a few seconds.
WARNING
Obey all applicable legal requirements when cleaning the diesel particulate filter.
x Clean diesel particulate filter as recommended only when visibility, weather, road, and traffic conditions permit.
x Do not put others at risk.
NOTICE
Failure to heed warning lights or text WARNINGS can result in vehicle damage.
As long as the indicator lights B, %0#, or

Frequently asked questions
If you suspect a malfunction or vehicle damage, read and follow the following advice before contacting an authorized Volkswagen dealer or an authorized Volkswagen Service Facility. You may also find helpful information under “Characteristics” and “Checklist” in the index.

Description Possible causes
among others Possible remedy
Engine does not
start.
Vehicle battery dead. – Perform jump-start
– Charge vehicle battery
The wrong remote
control vehicle key is
used.
Use a valid remote control
vehicle key
Fuel level too low. Refuel
AdBlue fill level too
low. Refill AdBlue
Vehicle cannot be
locked or unlocked
using remote con-
trol vehicle key.
– Battery in remote
control vehicle key
dead.
– Too far away from
vehicle.
(out of range).
– Buttons have been
pressed too many
times.
– Replace battery
–. Move closer to vehicle.
– Synchronize remote con-
trol vehicle key
– Lock or unlock vehicle
manually
Unusual noises.
Cold engine, brake-
assistance systems,
electronic parking
brake.
Check the “Noises” entry in
the keyword index.
Odd driving behav-
ior.
Assistance systems
activated.
Check the “Assistance sys-
tems” entry in the keyword
index.
Driver seat and
outer mirrors move
Convenience settings
are stored.
Correct convenience set-
tings

Description Possible causes
among others Possible remedy
Fuel consumption
higher than indi-
cated.
– Short hauls.
– “Jumpy accelerator
pedal”.
– Avoid traveling short dis-
tances
– Drive defensively.
– Accelerate smoothly.
Electrical loads
switched on.
Switch off unnecessary
loads.
Engine control mal-
functioning.
Have the malfunction cor-
rected.
Tire pressure too low. Adjust tire pressure
Driving in the moun-
tains.
No direct corrective action
possible.
Towing a trailer or roof
rack.
– Check use.
– Remove if not in use.
Driving with heavy
payload.
No direct corrective action
possible.
Driving at high engine
speed. Select a higher gear.

Checklist
For your own safety and that of your passengers, carry out the following steps in the order listed ⇒ :
1. Park the vehicle at safe distance from traffic and on a suitable surface ⇒ .
2. Switch on emergency flashers by pressing the  switch ⇒ fig. 327.
3. Apply the electronic parking brake to help prevent the vehicle from moving.
4. Shift the transmission into Park (P)
5. Stop the engine and remove the key from the ignition switch
6. Have all passengers exit and go to a safe location away from moving traffic, such as behind a guard rail.
7. Take all vehicle keys with you when leaving your vehicle.
8. Set up a warning triangle or other warning device in order to alert other motorists and cyclists.
9. Let the engine cool down and get expert assistance if necessary.
If the emergency flashers are on, use the turn signal lever to indicate a direction or lane change, for example when the vehicle is being towed. This temporarily interrupts the emergency flashers.
Switch on the emergency flashers when:
x Traffic suddenly slows down or stops in front of you to warn those approaching from behind.
x In any emergency situation.
x If the vehicle breaks down.
x When being towed.
Always obey traffic laws that govern the use of emergency flashers where you are driving.
If the emergency flashers are not working, a different method – as permitted by law – must be used to alert other motorists and cyclists to the breakdown.
WARNING
Disregarding the safety-related checklist may lead to accidents and serious injuries.
x Always review and follow the checklist. Follow accepted safety practices and use common sense.
WARNING
The vehicle exhaust system and the catalytic converter or diesel particulate filter get very hot and can cause a fire and serious personal injury.
x Never park where parts of the hot exhaust system or catalytic converter could ignite flammable materials, such as dry grass, brush, leaves, spilled fuel, etc.
The vehicle battery will be drained if the emergency flashers are on for a long time – even if the ignition is switched off.