check engine light VOLKSWAGEN TOUAREG 2012 User Guide

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.

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