2013 VOLKSWAGEN TOUAREG check engine


One or more driving lights not working or
cornering light malfunction.
Replace burned out bulb or
if all light bulbs are OK, visit an authorized
Volkswagen dealer or authorized Volkswagen
Service Facility.
Adaptive Front Lighting System
malfunction.
8 One or more brake lights burned out.
Replace the light bulb that isn't working. If all
light bulbs are OK, see an authorized
Volkswagen dealer or an authorized
Volkswagen Service Facility.

Adaptive Front Lighting System (AFS)
malfunction.
See an authorized Volkswagen dealer or an
authorized Volkswagen Service Facility.
 Headlight range adjustment malfunction. See an authorized Volkswagen dealer or an
authorized Volkswagen Service Facility.
 Parking lights switched on.
; All license plate lights not working.
Replace the light bulbs that aren't working. If
all light bulbs are OK, see an authorized
Volkswagen dealer or an authorized
Volkswagen Service Facility.
Fog lights switched on.



Left or right turn signal.
If necessary check the vehicle and trailer
lighting. The indicator light blinks twice as fast if a
turn signal is not working on the vehicle
or the trailer.
 Daytime running lights (DRL) on.
$2,
 High beams switched on or headlight
flashers in use.

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
Failure to heed warning lights and instrument cluster text messages can cause the vehicle to
break down in traffic and result in a collision and serious personal injury.
x Never ignore warning lights or text WARNINGS.
x Always stop the vehicle as soon as it is safe to do so.
x Whenever stalled or stopped for repair, move the vehicle a safe distance off the road, stop
the engine, turn on the emergency flashers, and use other warning devices to warn
approaching traffic.
x Never park the vehicle in areas where the hot catalytic converter and exhaust system can
come into contact with dry grass, brush, spilled fuel, oil, or other material that can catch fire.
x A broken down vehicle presents a high accident risk for itself and others. Switch on
emergency flashers and set up a warning triangle to warn oncoming traffic.

If the box in the Rain sensorfunction key is checked =, the feature is enabled.
Possible reasons for changes in the way the rain sensor works
The rain sensor may misread what is happening in the detection zone of its sensitive rain-sensor
surface ⇒ fig. 94 (arrow) and not work for a number of reasons, which include:
x Worn out wiper blades: Worn out wiper blades may leave a film of water or wiping streaks; this can
cause the wipers to run longer, to wipe more often, or to wipe continuously at high speed.
x Insects: Insects hitting the sensor cause wiping.
x Salt streaks: Salt streaks on the windshield from winter driving can cause wiping more often or
continuously on glass that is almost dry.
x Dirt: Caked-on dust, wax, any other buildup on the windshield (lotus effect), or CAR-wash
detergent residue can lower the rain sensor's sensitivity and cause it to react too slowly or not at all.
x Crack in the windshield: If a stone hits and chips the sensitive surface while the rain sensor is on,
this will trigger a wiper cycle. After that, the rain sensor will recognize the change and recalibrate itself
to respond to the smaller detection zone. Depending on the size of the chip, the sensor's reaction
pattern may or may not change.
.WARNING
The rain sensor cannot always recognize rain and activate the wipers.
x Switch the wipers on manually when water on the windshield reduces visibility.
Clean the sensitive area of the rain sensor regularly and check the wiper blades for wear or
damage.
To remove wax and coats of polish safely, we recommend using an alcohol-based windshield
cleaner.
Checking and refilling windshield washer fluid

Fig. 95 In the engine compartment: Cap of the windshield washer fluid reservoir.

.WARNING
Improper connections to the vehicle electrical system can cause malfunctions that affect the
entire vehicle electrical system, which can lead to accidents and serious personal injury.
x Have any work on the electrical system done by an authorized Volkswagen dealer or
authorized Volkswagen Service Facility.
x Never connect the electrical system for the trailer directly to the electrical connections for
the rear lights or to any other unsuitable power sources. Use only a suitable connector to
provide power to the trailer.
.NOTICE
Never attach a trailer to the vehicle or leave it attached to the vehicle when the trailer is
supported by a trailer jack or blocks. Various things (such as a change in trailer or vehicle load
or a flat tire) can lower or raise the vehicle. This subjects the trailer hitch and the trailer to
strong forces that can damage the vehicle or the trailer.
.Any problems with the vehicle's electrical system when attached to a trailer should be checked
by an authorized Volkswagen dealer or authorized Volkswagen Service Facility.
.If the engine is switched off and accessories in the trailer are on and use electricity from the
vehicle, the vehicle battery will be drained as long as the electrical systems of the vehicle and the
trailer are connected.
Loading the trailer

Lights
up Possible cause Proper response
Engine cannot be started with starter
button (Keyless Access).
Start the engine with the remote control
vehicle key. Take the vehicle to an authorized
Volkswagen dealer or an authorized
Volkswagen Service Facility and have the
system 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
Failure to heed warning lights and instrument cluster text messages can cause the vehicle to
break down in traffic and result in a collision and serious personal injury.
x Never ignore warning lights or text WARNINGS.
x Always stop the vehicle as soon as it is safe to do so.
x Whenever stalled or stopped for repair, move the vehicle a safe distance off the road, turn
on the emergency flashers, stop the engine, and use other warning devices to warn
approaching traffic.
.NOTICE
Failure to heed warning lights or text WARNINGS can result in vehicle damage.
Vehicle key positions in the ignition switch

Fig. 241 In the ignition switch: Vehicle key positions.
.

.WARNING
Poor visibility increases the risk of collisions and other accidents that cause serious
personal injuries.
x Always make sure all windows are clear of ice, snow and condensation for good visibility
to the front, sides, and rear.
x Maximum heating output and fast defrosting will only be possible after the engine has
reached operating temperature. Wait until you have good visibility before driving off.
x Always make sure you know how to properly use the heating and ventilation systems as
well as the rear window defroster that you will need for good visibility.
x Never use air recirculation for long periods of time. When the air conditioner is off and
recirculation mode is on, condensation can quickly form on the windows and greatly reduce
visibility.
x Always switch off recirculation mode when it is not needed.
.WARNING
Stale air causes driver fatigue and reduces driver alertness, which can cause accidents,
collisions and serious personal injury.
x Never switch off the fan for a long period of time and never use air recirculation a long
period of time because no fresh air will come into the passenger compartment.
.NOTICE
x If you think the air conditioner is not working properly or may be damaged, switch it off to
help prevent more damage. Have the air conditioner checked by an authorized Volkswagen
dealer or authorized Volkswagen Service Facility.
x Air conditioner repair requires specialized knowledge and special tools. Volkswagen
recommends that you see an authorized Volkswagen dealer or an authorized Volkswagen
Service Facility.
x Do not smoke when air recirculation is switched on. Smoke drawn into the ventilation
system can leave residue on the evaporator and on the dust and pollen active CARbon filter,
resulting in permanent odors whenever the air conditioner is switched on.
.If the air conditioner is switched off, the fresh outside air will not be dehumidified. To help keep
the windows from fogging over, Volkswagen recommends leaving the air conditioner (compressor)
switched on. Press the AC .button.
.When it is very hot and humid outside, water condensation can drip from the air conditioner
evaporator and form a puddle under the vehicle. This is normal and does not indicate a leak.
.Keep the air intake slots in front of the windshield free of ice, snow and leaves in order to
maintain proper functioning of the heating and ventilation systems.
.Maximum heating output and defrosting performance are not possible until the engine has
reached operating temperature.
.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

Automatic window fog detection
Automatic window fog detection checks whether the windows are fogged up and if necessary
automatically adjusts the air flow to the windshield and side windows or switches on the windshield
heating. If the fan or the air conditioner AC is turned off, automatic window fog detection cannot work
properly.
Residual heat mode
The residual engine heat can be used for a limited time to heat the passenger compartment when the
ignition is switched off.
x Switch off the ignition.
x Push the REST .button. The feature will appear in the Climatronic display.
x Press the REST .button again to switch the feature off early.
The feature is switched off if it is draining the battery too much, and it does off automatically after 30
minutes. The fan speed is reduced to save energy.
Applying driver settings to all climate zones
The driver-side settings for temperature, fan speed, and air distribution can be applied to all of the
other climate zones.
x Push the SYNC .button. The indicator light in the button lights up and the changes are applied to
all climate zones.
x Push the SYNC .button again to cancel the feature.
The synchronization feature is deactivated if individual settings are entered for one of the other
climate zones using the Climatronic control unit. In this case, the indicator light in the SYNC .button
goes out.
Air conditioner does not work
The air conditioner may not switch on for one the following reasons:
x The engine is not running (or a hybrid vehicle is not ready to drive).
x The fan is turned off.
x The air conditioner fuse has blown.
x The ambient air temperature is colder than +38 °F (+3 °C).
x The air conditioner compressor has been temporarily switched off due to excessive engine coolant
temperature.
x There is another malfunction in the vehicle. Have the air conditioner checked by an authorized
Volkswagen dealer or authorized Volkswagen Service Facility.
Special considerations
When it is very hot and humid outside, water condensation can drip from the air conditioner
evaporator and form a puddle under the vehicle. This is normal and does not indicate a leak.
The climate control system adjusts the passenger compartment temperature as fast as possible
considering the outside temperature.
Due to residual moisture in the air conditioner, the windshield may fog up after the engine is
started. Switch on the windshield defroster to help evaporate the condensation as quickly as possible.
The air coming out the vents and flow through the passenger compartment and out through the
vents below the rear window. Do not cover these slots with clothing or other objects.

.WARNING
Driving with a fuel tank that is almost empty can lead to stalling in traffic, a collision, and
serious personal injuries.
x When the fuel tank is almost empty, fuel supply to the engine can be interrupted,
especially when driving up an down hills. The interruption in fuel flow could stall the engine
during a maneuver in difficult terrain and make you lose control of the vehicle.
x Steering and braking assistance as well as ESC and related systems will not work if the
engine “sputters” or stalls due to lack of fuel.
x Always refuel when the tank is 1/4 full to reduce the risk of running out of fuel and stalling
in traffic.
.NOTICE
x Failure to heed warning lights or text WARNINGS can result in vehicle damage.
x Never drive until the fuel tank is completely empty. The irregular fuel supply can cause the
engine to misfire. This allows unburned fuel to get into the exhaust system and damage the
catalytic converter or the diesel particulate filter.
.NOTICE
If the fuel tank venting system malfunctions and the fuel tank cannot be properly vented before
refueling:
x Gasoline fumes can escape from the fuel filler neck, resulting in temporary odors.
x The fuel nozzle may shut off during refueling and it will take longer to refuel the vehicle.
Only in this situation can you continue to CARefully refuel your vehicle after the fuel nozzle
shuts off.
x See your Authorized Volkswagen dealer or authorized Volkswagen Service Facility to have
your vehicle checked.
.The small arrow next to the gas pump symbol in the fuel gauge shows the side of the vehicle
with the fuel filler flap.
Misfueling guard for diesel vehicles

Fig. 278 With open fuel cap: Misfueling guard in the fuel filler neck
.

The fuel filler neck of diesel vehicles is equipped with a misfueling guard ⇒ fig. 278. The misfueling
guard helps prevent filling the fuel tank of a diesel vehicle with gasoline, because the guard makes it
difficult to insert any type of filler nozzle other than the type commonly used for diesel fuel.
Damaged, worn out, or incorrect nozzles, as well as other means of refueling (portable fuel
containers, for example) will generally not open the misfueling guard and fuel from these sources
cannot easily flow into the tank. Using these incorrect or non-standard nozzles to refuel your diesel
vehicle can cause fuel spills, which can cause fires, explosions, burns, and other severe injuries.
The misfueling guard can generally only be properly opened with a correct nozzle from a standard
diesel fuel pump. Under certain circumstances it may be necessary to turn the nozzle back and forth
slightly with light pressure to open the misfueling guard. If the misfueling guard cannot be opened this
way, see the nearest authorized Volkswagen dealer or authorized Volkswagen Service Facility and
have the fuel system checked.
.WARNING
Spilled fuel can cause fires, explosions, burns, and other severe injuries.
x Do not refuel from devices other than correct, undamaged standard diesel fuel pump
nozzles.
x Always stop refueling once the pump nozzle switches off so that the tank does not
overflow.
.NOTICE
x It is your responsibility to put the right fuel in your vehicle and any damage that results is
not covered under the Emissions warranties or any other Volkswagen Limited Warranty.
x If you put any amount of the incorrect fuel in the fuel tank, do not start the engine under any
circumstances. Immediately contact the nearest authorized Volkswagen dealer or authorized
Volkswagen Service Facility for assistance.
x If diesel fuel should get on any rubber hose, it must be wiped off immediately. The same
applies if diesel fuel gets onto other parts of the vehicle, especially paint, tires, or a plastic
part. Wash the contaminated vehicle parts right away with soap and warm water to help
prevent leaks and serious damage.
x Never force a fuel nozzle in the misfueling guard. If you have problems inserting a fuel
nozzle, first check to make sure you are using the correct diesel fuel. If you are, go to a pump
with the standard diesel nozzle. Forcing a fuel nozzle in the misfueling guard can damage it so
that it can no longer help prevent misfueling.
Fuel capacities
.