engine VOLKSWAGEN TOUAREG 2013 2.G Repair Manual

In vehicles with selective catalytic reduction, a special urea solution (AdBlue) is injected into the
exhaust system ahead of the catalytic converter in order to reduce nitrogen oxide emissions.
AdBlue is stored in a separate tank of the vehicle and should be refilled under normal driving
conditions during service according to the maintenance schedule. The AdBlue tank holds slightly less
than 5 gallons (20 liters).
AdBlue consumption depends on the individual driving style, system operating temperature, and
outside air temperature. Therefore in rare cases AdBlue may have to be refilled between service
events.
Starting with a remaining range of about 1500 miles (2400 km), a reminder to refill AdBlue is displayed
in the instrument cluster. If you ignore the last refill reminder, it is impossible to start the engine again
after it is switched off
Volkswagen recommends that you have the AdBlue tank refilled by an authorized Volkswagen dealer
or an authorized Volkswagen Service Facility. If no authorized Volkswagen dealer or authorized
Volkswagen Service Facility or other qualified workshop is available, you should refill at least 1.5
gallons (5.7 liters) of AdBlue (3 AdBlue bottles). Refill only the type of AdBlue that Volkswagen has
explicitly approved for your vehicle.
If warning lights ~ and d both come on together, there is a malfunction. Volkswagen recommends that
you take the vehicle to the closest qualified workshop.
AdBlue® is a registered trademark of the German Association of the Automotive Industry (VDA) in the
United States, Germany, the European Union and in other countries.
Refilling AdBlue

Fig. 279 Luggage compartment with collapsible spare tire and AdBlue tank.

Fig. 280 AdBlue tank with filler neck cap and refill container.

.WARNING
Store AdBlue only in its closed original container and in a safe place.
x To reduce the risk of poisoning, never keep AdBlue in empty food or beverage containers
that might mislead someone into drinking from them.
x Always store AdBlue outside the reach of children.
.NOTICE
x Use only AdBlue that has been explicitly approved by Volkswagen. Using other types of
AdBlue can damage your vehicle's engine.
x Never mix water or any other substances or additives with AdBlue. Damage caused by such
additives will not be covered by any Volkswagen Limited Warranty.
x Never put AdBlue into the diesel fuel tank! Otherwise the engine may be damaged!
x Do not CARry a refill container in the vehicle all the time or routinely. Due to temperature
fluctuations and damage, the container could start leaking and the AdBlue could damage the
vehicle interior.
.Dispose of the refill container in an environmentally-responsible manner.
.Appropriate AdBlue refill containers can be obtained from an authorized Volkswagen dealer or
an authorized Volkswagen Service Facility.

.WARNING
Inadequate experience and knowledge of the demands of off-road driving can lead to critical
situations and cause serious personal injury.
x Never take routes or risks that could put you or your passengers in danger. If you cannot
go on, or have doubts about the safety of your route, turn back and take a new route.
x The intelligent technology of the vehicle cannot change the laws of physics. Despite the
ABS, adverse terrain can cause instability through blocked wheels – for example, if you
brake hard when driving on a loose gravel road. Difficult terrain may also prevent the ESC
from doing its job.
x Never operate the vehicle at the limit of its performance ability. Always leave a good
safety margin.
x To reduce the risk of loss of control and serious personal injury, never use the cruise
control when driving off-road.
x Even terrain that looks easy can be difficult and dangerous, putting you and your
passengers in a critical situation. It is often best to check an area out on foot first.
x Drive with special CARe and think ahead in off-road terrain. If you drive too fast, or fail to
maneuver the vehicle properly, you could cause personal injury and damage the vehicle.
x Never drive faster than is appropriate for the prevailing terrain and the road, traffic, and
weather conditions.
x Never drive too fast across embankments, ramps, or slopes. The vehicle could become
airborne. If that happens, you will not be able to steer and can lose control.
x If your vehicle becomes airborne, always keep the front wheels pointing straight ahead. If
the wheels are not pointing straight ahead when the vehicle lands, it could roll over.
x Never allow people to stand in front of or behind the vehicle if you have put items such as
stones or pieces of wood under the wheels to improve traction on slippery ground. Spinning
wheels can turn these items into dangerous flying objects causing serious personal injury.
x Even areas that look harmless can be dangerous. Potholes, ditches, trenches, drop-offs,
different kinds of obstacles, and soft or swampy ground often cannot be seen and can be
partially or fully covered by water, grass, branches, or other things. Driving over such terrain
can cause accidents and severe injuries. Before crossing an unknown area, CARefully
explore the route you plan to take on foot.
.WARNING
Never drive off-road if you are low on fuel. Too little fuel in the tank can cause an accident
and serious injuries. You can also run out of fuel in a remote area where getting help is
difficult or impossible.
x When the fuel tank is almost empty, fuel supply to the engine can be interrupted,
especially when driving over bumps, across slopes, and up and 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. This can cause loss of vehicle control,
especially in difficult terrain.
x Always refuel when the tank is 1/4 full to reduce the risk of running out of fuel.
.NOTICE
If the power sunroof or the windows are open when it rains or snows, the interior of the vehicle
will get wet and the vehicle may be damaged. Always keep the windows and the power sunroof
closed when driving off-road.

Term Explanation Technical data
Ground clearance This is the vertical distance between the
level ground and the lowest part on the
vehicle.
Front: maximum 8.6 inches
(214 mm).
Rear: maximum 10.4 inches
(261 mm).
Fording depth in
standing water
Distance between the point on the ground
that touches the tire and the engine air
intake duct.
Maximum 20 inches (500 mm).
Gradient angle The number of feet (meters) in altitude
gained when traveling 100 ft (30.48 m) is
given as a percentage or in degrees
⇒ fig. 281 A.
Information on the maximum slope the
vehicle can climb unassisted (depends on
road surface and engine power).
Maximum permissible 31 degrees
(corresponds to 60 %).
Lateral angle
(vehicle slope)
The maximum angle the vehicle may be
driven across terrain without the vehicle
rolling over (depends on height of center
of gravity) B.
Maximum permissible
35 degrees.
Breakover angle Maximum permitted angle given in
degrees that a vehicle driven at low speed
can clear a ramp without the underbody of
the vehicle scraping the ramp
Maximum 20 degrees.
Approach/departure
angle
Transition from horizontal plane to a slope,
or from a slope to flat ground.
Maximum angle in degrees the vehicle can
be driven at low speed along an
embankment without the bumper or
underbody scraping.
Front: maximum 25 degrees.
Rear: maximum 26 degrees.
Fall line This is the vertical drop route.
Articulation Articulation capability of the vehicle while driving on one side over an object.

.WARNING
Never exceed the recommended maximum values in the above table. Exceeding these values
will result in serious personal injury and/or damage to your vehicle.
x All values listed above are for ideal conditions and assume firm, even surfaces that are
dry and not slippery.
x Off-road conditions will always be less than ideal. Always reduce the maximum values
listed in the table above to allow an adequate margin of safety between the ideal maximum
value and your vehicle's actual off-road situation.
Useful off-road driving equipment
.

x Shape of the bank.
x Objects in the water.
x Maximum fording depth of the vehicle.
Before driving through water
Stop, get out of the vehicle, and assess the situation ⇒ :
x Measure water depth from one side to the other. Check the firmness of the bed and banks; check
for drop-offs and obstacles in the water ⇒ .
x Make sure it is possible to enter and exit the water safely.
x Check the angle of the embankment and the firmness of the ground on each bank.
x Switch to off-road mode.
Driving through standing and slow-moving water
The vehicle can drive through standing water if the ground under the water is firm enough ⇒ .
Never exceed maximum fording depth.
x Drive slowly into a river in the direction of the flow. Never exceed the departure/approach angle
and lateral angle (vehicle slope).
x Always drive at a constant speed to the other side.
This will help prevent engine damage from the water. It also allows an air pocket to form in front of the
engine that can supply it with the necessary air.
Entering the water quickly or driving too fast through the water will create a bow wave. A bow wave
can force its way into the engine air intake duct and seriously damage the engine.
Driving through fast-moving water
Driving through fast-moving water is very dangerous ⇒ .
The vehicle can be swept away by the current. Even vehicles with high ground clearance can get
stuck if the ground is washed out from under the tires. Fast-moving water will build up against the side
of your vehicle. This will make the water deeper. Always think about this before entering the water.
Water volume, speed, and depth can be very unpredictable and dangerous.
If you are uncertain how fast the water is flowing, look for a shallower place where you can cross in
safety. If you cannot find a safe place to cross, turn back.
Headlight washer system instructions
Do not use the headlight washer system when driving through water. Things in the water can enter
into the openings when the washer nozzles are extended. This can prevent the washer nozzles from
retracting to their normal position. If this should happen, CARefully remove the objects.
After driving through water
x After crossing through deep water, stop the engine and check the oil dipstick. If there are beads of
water on the oil dipstick or the oil level has increased, do not start the engine. Change the engine oil
immediately. Depending on the amount of water in the oil, running or starting the engine can result in
engine failure or serious engine damage.
x Always dry the brakes by braking a couple of times.

.WARNING
Flowing water is very powerful and can sweep your vehicle away. This can lead create an
extremely dangerous situation and cause an accident with serious personal injuries.
x Never take routes or risks that could put you or your passengers in danger. If you cannot
go on or have doubts about the safety of your route, turn back and take a new route.
x Never stop in the water.
x If water gets into the engine, your vehicle can break down. You will lose control of a
broken down vehicle, and it can be swept away.
x Soft surfaces, mud, underwater obstacles, and holes can cause accidents and can cause
the vehicle to break down in the water. This can lead pose extreme danger.
x Rapidly flowing water can develop strong forces that can pull the vehicle downstream.
This can cause accidents and fatal injuries.
x Drive through water only where the banks and bottom are firm enough and the water is
shallower at all points than the maximum permissible fording depth for your vehicle ⇒ table .
.NOTICE
x Vehicle components such as the engine, drive train, suspension or electrical system may
be severely damaged by driving through water.
x Avoid stopping in deep water. This can let water get inside the vehicle.
x On soft ground, the tires dig into the surface. This reduces fording depth. Make sure that
the ground is sufficiently firm.
x Avoid creating a bow wave in front of the vehicle while driving through water. A bow wave
could force its way into the engine air intake duct and seriously damage the engine.
x If you even briefly exceed the maximum fording depth when driving through water, severe
engine damage will result. This engine damage will lead to a vehicle breakdown. This can
disable the vehicle in the water.
x Never drive over salt flats or through salt or salty water. Salt causes vehicle corrosion.
Rinse all parts of the vehicle that were exposed to salt or salt water right away with fresh
water.
Driving over snow-covered terrain
.

.WARNING
Never try to drive up or down slopes that are too steep for your vehicle. The vehicle could
slide away, tip over, or roll over.
x Never take routes or risks that could put you or your passengers in danger. If you cannot
go on or have doubts about the safety of your route, turn back and take a new route.
x The lateral angle must never be more than the maximum angle approved for the vehicle.
x Always drive along the fall line when driving up or down a slope.
x Never try to turn the vehicle around on a slope. The vehicle could tip over or roll down the
slope.
x If the engine stalls or you can no longer drive up the slope for any reason, stop and apply
the foot brake. If stalled, apply the foot brake and restart the engine. Then shift into Reverse
(R) and CARefully back your vehicle straight down the slope along the fall line. Keep the
vehicle speed slow and even.
x If the engine will not restart, apply constant pressure to the foot brake and CARefully back
straight down the slope the same way you drove up. Keep the vehicle speed slow and even.
x If the engine is running, select Reverse and CARefully back straight down the slope the
same way you drove up. Use engine braking power and the foot brake to keep the vehicle
speed slow and even.
x Never just roll down a slope with the transmission in Neutral (N). You could lose control of
the vehicle.
Driving crosswise on a slope

Fig. 283 Steer downhill along the fall line.

d Check tires, suspension struts, and axles for damage and remove coarse dirt, stones, and foreign
objects from the tire tread.
d Examine the vehicle underbody and remove objects such as twigs, leaves, or bits of wood that
have gotten stuck in the brake system, the wheels, the suspension, the exhaust system, of the
engine ⇒ . If damage or leaks are detected, see an authorized Volkswagen dealer or an
authorized Volkswagen Service Facility.
d Remove coarse dirt from the radiator grille and the vehicle underbody, Exterior CARe and
cleaning.
d Check the engine compartment to for dirt that interferes with engine operation

Preparations for working in the engine compartment

.WARNING
Unintended vehicle movement during maintenance work can cause serious personal injuries.
x Never work under the vehicle unless you have safely secured the vehicle from moving. If
you must work under the vehicle with the wheels on the ground, always make sure that the
vehicle is on level ground, that all 4 wheels are chocked to keep them from moving, and that
the key is not in the ignition.
x If you must work under a vehicle raised on a floor jack, always make sure that the vehicle
is safely supported on safety stands intended for that purpose that are strong enough to
support the weight of the vehicle. The jack supplied with the vehicle is not strong enough for
this purpose and can collapse causing serious personal injury.
.WARNING
The engine compartment of any motor vehicle is a potentially dangerous area and can cause
serious personal injury.
x Always use extreme caution when doing any work in the engine compartment. Always
follow commonly accepted safety practices and use common sense. Never risk personal
injury.
x Never perform any work in the engine compartment unless you know exactly how to
CARry out the job and have the correct technical information and the correct tools.
x If you are uncertain about what to do, have the work performed by an authorized
Volkswagen dealer, an authorized Volkswagen Service Facility, or another qualified
workshop. Serious personal injury may result from improperly performed work.
x We strongly recommend that you always have HID - High Intensity Discharge (Xenon)
lamps and HO7 bulbs replaced by a qualified technician. Serious personal injury may result
from improperly performed work.
x Never open or close the engine hood if steam or coolant is escaping. Hot steam or coolant
can cause serious burns. 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.
x Hot parts of the engine and the exhaust system will burn skin on contact.
x When the engine has cooled down and you are ready to open the hood:
– Firmly 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.
– 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.