2017 VOLKSWAGEN TOUAREG check engine light

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 approach-ing 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.
NOTICE
Failure to heed warning lights or text WARNINGS can result in vehicle damage.
High Intensity Discharge (HID) headlights provide bright, uniform lighting to help you see and be seen. The light comes from an electric arc between two electrodes in the gas-filled bulb. Over time, the electrodes can wear down and the gap between them will get wider. The HID lamp’s control unit then increases the voltage to keep the arc’s brightness constant. However, the commonly called “Xenon” bulbs will also ultimately burn out. Before they burn out, HID lamps can flicker. A message will then appear in the MFI. This is your reminder to see an authorized Volkswagen dealer or an authorized Volkswagen Service Facility to check the headlights.
Turn signal lever and high beam switch

Fig. 84 Turn signal lever and high beam switch.

The trailer is connected to the anti-theft alarm (if equipped):
x When the vehicle has a factory installed anti-theft alarm and a factory installed trailer hitch.
x When the trailer is not equipped with LED taillights.
x When the trailer is electrically connected to the towing vehicle via the trailer socket.
x When the vehicle and trailer electric systems are functional, fault-free and undamaged.
x When the vehicle is locked with the remote control vehicle key and the anti-theft alarm is active.
When the vehicle is locked, the alarm will be triggered as soon as the electrical connection to the trailer is interrupted.
Always switch off the anti-theft alarm when a trailer is being hitched or unhitched. The tilt sensor could otherwise trigger an alarm unnecessarily.
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 au-thorized 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 sup-ported 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.
For technical reasons, trailers with LED taillights cannot be integrated into the anti-theft alarm system.
Loading the trailer

Lights
up Possible cause Proper response
K Depress brake pedal! Depress the brake pedal while
starting the engine.
2%!$9 Hybrid vehicles: Electric drive
is ready.
Never leave the vehicle parked in
the ready position. Remove the
remote control vehicle key out of
the ignition or for vehicle with
Keyless Access press the starter
button. When leaving the vehicle
always take the remote control
vehicle key with you.

No authorized remote control
vehicle key found (Keyless
Access).
Use an authorized remote control
vehicle key
Engine cannot be started with
starter button (Keyless Ac-
cess).
Start the engine with the remote
control vehicle key. Take the
vehicle to an authorized
Volkswagen dealer or an author-
ized 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 ap-proaching traffic.
NOTICE
Failure to heed warning lights or text WARNINGS can result in vehicle damage.

mance, increases stopping distances and can even cause total brake failure. Your safety and the
safety of others depends on brakes that are working properly at all times ⇒ .
Brake fluid specifications
Volkswagen has developed a special brake fluid that is optimized for the brake system in your Volkswagen. Volkswagen recommends that you expressly use brake fluid that conforms to quality standard VW Standard 501 14 for optimum performance of the brake system. Check the information on the container for the brake fluid you want to use to make sure it meets the requirements for your vehicle.
Brake fluid that complies with VW Standard 501 14 can be purchased from your authorized Volkswagen dealer or authorized Volkswagen Service Facility.
If this special brake fluid is not available you may – under these circumstances – use another high-quality brake fluid that complies with U.S. Federal Motor Vehicle Safety Standard (FMVSS) 116 DOT 4
⇒ .
Please note, however, that not all brake fluids that comply with U.S. Federal Motor Vehicle Safety Standard FMVSS 116 DOT 4 have the same chemical composition. Some of these brake fluids can contain chemicals that could, over time, degrade or damage internal parts of the vehicle’s brake sys-tem.
Volkswagen therefore recommends that you use brake fluid that expressly complies with VW Stand-ard 501 14 for optimum brake system performance over the long term.
Brake fluid level
The fluid level in the transparent brake fluid reservoir must always be between the MIN and MAX
marking ⇒ .
On some vehicles, engine components block the view of the brake fluid reservoir and make it impossi-ble to see the brake fluid level. If you cannot clearly see the brake fluid level in the brake fluid reser-voir, please see an authorized Volkswagen dealer or authorized Volkswagen Service Facility.
The brake fluid level drops slightly when the vehicle is being used as the brake pads wear and the brakes are automatically adjusted.
Changing brake fluid
Brake fluid must be changed according to the service schedule in your ⇒ Booklet Warranty and
Maintenance. Have the brake fluid checked by an authorized Volkswagen dealer or an authorized Volkswagen Service Facility. Refill only with new brake fluid that meets the standards listed above.
WARNING
Brake failure and reduced brake performance can be caused by not having enough brake fluid in the reservoir or by old or incorrect brake fluid.
x Check the brake system and brake fluid level regularly.
x Always change the brake fluid according to the service schedule in your
⇒ Booklet Warranty and Maintenance.
x Hard braking with old brake fluid may cause vapor lock. Vapor lock reduces braking per-formance, increases stopping distances and can even cause total brake failure.
x Always make sure that only the correct brake fluid is used. Only use brake fluid that ex-pressly conforms to VW Standard 501 14 or, if it is not available, only use a high-quality brake fluid that conforms to U.S. Standard FMVSS 116 DOT 4 requirements.
x Using another brake fluid, or one that is not of high quality, can impair the function of the brake system and reduce its effectiveness. If the container does not say that the brake fluid complies with VW Standard 501 14, or U.S. Standard FMVSS 116 DOT 4, do not use it.
x The brake fluid must be new.

Warning messages
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 lights and text messages are shown in the instrument cluster display. Acoustic warnings may also sound at the same time.

Lights
up
Warnings in the in-
strument cluster dis-
play
Proper response
∋
Fault in the hybrid sys-
tem: stop the vehicle at
a safe location!
Stop the vehicle in a safe place as
soon as it is safe to do so.
∋
Fault in the hybrid sys-
tem: Workshop!
See an authorized Volkswagen dealer
or an authorized Volkswagen Service
Facility.
Hybrid battery is charg-
ing, leave engine run-
ning.
While this message appears, do not
stop the engine.
2%!$9 Electric drive is
READY.
Never leave the vehicle parked in the
ready position. Remove the remote
control vehicle key out of the ignition
or for vehicle with Keyless Access
press the starter button ⇒ page 395.
When leaving the vehicle always take
the remote control vehicle key with
you.
%

Checklist
If you are uncertain in any way, have the work done by an authorized Volkswagen dealer or author-ized Volkswagen Service Facility. Serious personal injury may result from improperly performed work. Make sure that you check the following items regularly. The best thing is to check them every time you refuel:
d Windshield washer fluid level ⇒  Windshield wiper and washer
d Engine oil level ⇒  Engine oil
d Engine coolant level ⇒  Engine coolant
d Brake fluid level ⇒  Braking and parking
d Tire pressure ⇒  Tires and wheels
d Vehicle lighting necessary for driving safety:
– Turn signals
– Parking lights, low beams and high beams
– Taillights
– Brake lights
– License plate light
Information regarding replacing light bulbs ⇒  Replacing light bulbs.
WARNING
Disregarding the safety-related checklist may lead to accidents and injuries.
x Please note and follow the points listed in the checklist.

WARNING
High voltage systems in the engine compartment can cause electrical shocks or even elec-trocution, severe burns, other serious injuries, and even death!
x Never short-circuit the electrical system. Be especially careful when using jumper cables. The vehicle's battery could explode!
x To reduce the risk of electrical shock and personal injury while the engine is running or being started:
– Never touch ignition cables. Never touch other components of the high-voltage elec-tronic ignition system.
– Never touch the wiring of the HID – High Intensity Discharge (Xenon) headlights.
x Read and heed the important information and warnings on cleaning the engine compart-
ment ⇒  Cleaning the engine compartment.
WARNING
Moving parts in the engine compartment can cause serious personal injury on contact.
x Never reach into the area around or touch the radiator fan. Contact with the blades can cause serious personal injury. Always remember that the radiator fan is temperature-controlled and can come on suddenly even when the engine has been switched off for a while and the key has been removed from the ignition.
x If you have to perform a check or repair when the engine is running, there are more risks from the rotating parts, such as the drive belts, alternator, radiator fan, etc., and from the high-voltage ignition system. Always use extreme care.
– Always make sure that jewelry, loose clothing and long hair do not get caught in rotat-ing engine parts. Before starting any work remove your jewelry, take off your necktie, tie back and cover your hair, and do not wear clothing that can hang down and get caught in moving engine parts.
– Always use extreme caution if the accelerator pedal has to be depressed to perform a check. The vehicle will start to move even if the parking brake is on.
x Never leave any objects in the engine compartment, for example cleaning rags and tools. Objects left behind can cause malfunctions, engine damage, and even fires.
WARNING
Operating fluids and some materials in the engine compartment can catch fire easily, causing burns and other serious personal injuries!
x Do not smoke.
x Never work next to open flames or sparks.
x Never pour or spill operating fluids or other flammable liquids on the engine. These fluids can ignite on hot engine parts and cause injuries.
x If work on the fuel system or the electrical system is necessary:
– Always disconnect the 12 Volt vehicle battery. Make sure the vehicle is unlocked when you disconnect the battery, or the alarm will go off. Never touch the electrical wiring of the ignition system.
– Never work near heaters, water heaters, or other open flames.
x Always have a functional, approved fire extinguisher nearby.

NOTICE
When changing or topping off fluids, make sure that you pour the fluids into the correct reser-voirs. Adding the wrong type of operating fluids will cause serious malfunctions and engine damage!
Fluid leaks are harmful to the environment. Regularly check the ground underneath your vehicle for this reason. If you find spots of oil or other fluids, have your vehicle checked by your authorized Volkswagen dealer or authorized Volkswagen Service Facility. Dispose of leaked operating fluids properly.
Warning light