2014 VOLKSWAGEN TOUAREG check engine

x Press the CAR Infotainment button.
x Tap the Assist systems function key on the screen.
x Tap the function key Rain sensor to enable or disable the rain sensor.
If the box in the Rain sensor function 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. 97 (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. 98 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

Wheel alignment – Incorrect wheel alignment causes excessive and uneven tire wear, impairing vehicle safety. If you notice excessive or uneven tire wear, have the wheel alignment checked by an authorized Volkswagen dealer or authorized Volkswagen Service Facility.
WARNING
Unusual vibrations or pulling to one side can indicate tire damage.
x Reduce speed immediately and stop when it is safe to do so.
x Check tires and wheel rims for damage.
x Never drive with a damaged tire or rim. Get expert assistance instead.
x If no external damage is visible, slowly and carefully drive to the nearest authorized Volkswagen dealer or authorized Volkswagen Service Facility or other qualified workshop and have the vehicle checked.
Collapsible spare tire

Fig. 115 Under the luggage compartment floor panel: Collapsible spare tire with threaded retainer (left) and collapsible spare tire with fastening bolt and washer (right).

Fig. 116 Connection points in the engine compartment for the collapsible spare tire compressor.

Removing the collapsible spare tire
x Open the rear hatch: Lift up the luggage compartment floor panel and hook it to the top of the
luggage compartment or remove the reversible luggage compartment floor panel ⇒ Luggage compartment.
x Take the retainer ⇒ fig. 115 (1) from the middle of the collapsible spare wheel and fit it onto the fastening bolt (2); then unscrew the bolt completely counterclockwise.
x OR: Turn the fastening bolt with washer (3) counterclockwise and remove completely.
x Take the collapsible spare tire out of the vehicle.
x Inflate the collapsible spare tire to not more than 51 psi (3.5 bar / 350 kPa) before mounting it on
the vehicle ⇒ Inflating the collapsible spare tire.
Inflating the collapsible spare tire
x Take the compressor out of the luggage compartment ⇒ Vehicle tool kit.
x Screw the tire filler hose onto the valve of the collapsible spare tire.
x Open the engine hood ⇒ In the engine compartment.
x Connect the compressor with the 12 Volt clips only to the jump-start terminals in the engine
compartment ⇒ Jump starting. The red clip on the compressor cable is connected to the positive (+)
terminal; the black clip is connected to the negative terminal (-) ⇒ fig. 116.
x Route the connector cables so that they cannot get caught in rotating parts.
x Start the vehicle engine and let it run.
x Switch on the compressor. Make sure that the air bleed screw on the tire pressure gauge is closed.
x Inflate the collapsible spare tire to a pressure of 51 psi (3.5 bar / 350 kPa). The compressor must be switched off after 10 minutes at most to keep it from overheating.
Stowing the tire you removed
x Lift up the luggage compartment floor panel and hook it to the top of the luggage compartment or
remove the reversible luggage compartment floor panel ⇒ Luggage compartment.
x If necessary, return the vehicle tool kit to its location in the luggage compartment.
x Unhook the luggage compartment floor panel/replace reversible luggage compartment floor panel.
x Put the tire you took off the vehicle in the luggage compartment and secure it firmly.
x Close the rear hatch.
Driving with the collapsible spare tire
The collapsible spare tire is different in design from the road tires and must be used only in the event
of a flat tire, only for a brief time, and only when driving with extra caution ⇒ .
Replace it with a tire matching the others on your vehicle as soon as possible.
Please heed the following:
x Do not drive faster than 50 mph (80 km/h)!
x Avoid full-throttle acceleration, hard braking and fast cornering!
x Do not use snow chains on the collapsible spare tire.
x After installing the collapsible spare tire, check the tire pressure as soon as possible ⇒ Checking tire inflation pressure.
Reusing the collapsible spare tire
The collapsible spare tire can be reused as long as it is not damaged and not worn down to the tread wear indicators.

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. 248 In the ignition switch: Vehicle key positions.

WARNING
Improper use of the electronic parking brake can cause accidents and severe injuries.
x Never use the parking brake to slow down the vehicle when it is moving, except in an emergency. Braking distance is much longer, since only the rear wheels are braked. Always use the foot brake.
x Never press the accelerator pedal when a selector lever position or gear is engaged and the engine is running. The vehicle could begin moving, even if the electronic parking brake is set.
x Never activate the throttle manually from the engine compartment when the engine is running and the automatic transmission is in gear. The vehicle will start to move even if the parking brake is engaged.
NOTICE
Even though the transmission is in Park (P), the vehicle may move a couple of inches (a few centimeters) forwards or backwards if you take your foot off the brake pedal after stopping the vehicle without first firmly setting the parking brake.
If the vehicle battery is dead, the electronic parking brake cannot be released. Use a jump-start
You may hear noises when setting or releasing the electronic parking brake.
If the electronic parking brake is not used for a while, an automatic system check will occasionally run when the vehicle is parked. This system check makes audible noises.
Parking

WARNING
Driving when the brake booster is not working increases stopping distances and can cause accidents and serious personal injuries.
x Never let the vehicle coast when the engine is switched off.
x If the brake booster is not working (such as when the vehicle is being towed), a lot more pedal force is needed to slow down and stop.
NOTICE
x Never “ride” the brakes by keeping your foot on the brake pedal when you do not want to brake. Constant pressure on the brake pedal can make the brakes overheat. Riding the brakes will substantially reduce braking performance, increase stopping distance, and can cause complete brake system failure.
x Before driving downhill, especially on hills that are long or steep, always reduce speed and shift into lower gear (manual or automatic transmission). This will let the vehicle use engine braking and reduce the load on the brakes. Otherwise, the brake system could overheat and possibly fail. Only use the brakes when you need them to slow the vehicle down more or to stop.
When the front brakes are serviced, you should have the rear brake pads inspected at the same time. The wear of all brake pads should be visually checked regularly. The best way to check for brake pad wear is to have your authorized Volkswagen dealer or authorized Volkswagen Service Facility visually inspect the pads through the openings in the wheel rims or from underneath the vehicle. If necessary, the wheels can be taken off for a more thorough inspection.
Braking assistance systems

performance, 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 system.
Volkswagen therefore recommends that you use brake fluid that expressly complies with VW Standard 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 impossible to see the brake fluid level. If you cannot clearly see the brake fluid level in the brake fluid reservoir, 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 performance, 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 expressly 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.