Instruments and Indicator/Warning Lights
30
WARNING
•
If you do not pay attention to the warning lights coming on and the corre-
sponding descriptions and warning notes, this may result in severe body inju- ries or major vehicle damage.•
The engine compartment of your car is
a hazardous area. There is a risk of
injuries, scalding, accidents and fire wh
en working in the engine compartment,
e.g. inspecting and replenishing oil and
other fluids. It is also essential to
observe all warnings
⇒page 204, “Working in the engine compartment”.
Note
•
The arrangement of the indicator lights depends on the model version. The
symbols shown in the following functional
description are to be
found as indicator
lights in the instrument cluster.•
Operational faults are shown in the instrument cluster as red symbols (priority 1 -
danger) or yellow symbol
s (priority 2 - warning).
Failure of the light bulbs
⇒page 31
Diesel particle filter* (diesel engine)
⇒page 31
Airbag system
⇒page 32
Control system for exhaust
⇒page 32
Electromechanical power steering
⇒page 32
Engine oil level
⇒page 33
Engine oil pressure
⇒page 33
EPC fault light (petrol engine)
⇒page 33
Glow plug system (diesel engine)
⇒page 34
Coolant temperature/coolant level
⇒page 34
Traction control system (TCS)
⇒page 34
Electronic stability programme (ESP)*
⇒page 35
Selector lever lock*
⇒page 35
Tyre pressure*
⇒page 35
Antilock brake system (ABS)
⇒page 36
Boot lid
⇒page 37
Open door
⇒page 37
Seat belt warning light
⇒page 36
Brake pad wear*
⇒page 36
Fluid level in windshield washer system*
⇒page 37
Brake system
⇒page 37
Dynamo
⇒page 37
Fuel reserve
⇒page 38
Downhill Drive Support*
⇒page 38
Overheated clutches of the automatic gearbox DSG*
⇒ page 38
sgg.6.book Page 30 Thursday, September 24, 2009 2:32 PM
Instruments and Indicator/Warning Lights
34If the warning light
does not go out or lights up
after starting the engine, a fault
exists in the engine control. The engine
management system selects an emergency
programme which enables you to drive to the nearest specialist garage by adopting a gentle style of driving. The following text will be displayed in the information display*:
Engine fault Workshop!
Glow plug system
(diesel engine)
The warning light
lights up for a
cold
engine when switching on the ignition (pre-
heat position)
2 ⇒page 109. Start the engine after the indicator light goes out.
The glow plug indicato
r light will come on for about 1
second if the engine is at a
normal operating temperature
or if the outside temperature is above +5°C. This
means that you can start the engine
right away
.
There is a fault in the glow plug system if the
warning light
does not come on
or
lights up continuously
; contact a specialist garage as soon as possible to obtain
assistance. If the
warning light
begins
to flash
while driving, a fault exists in the engine
control. The engine management system
selects an emergency programme which
enables you to drive to the nearest specialist garage by adopting a gentle style of driving. The following text will be displayed in the information display*:
Engine fault Workshop!
Coolant temperature/ Coolant quantity
The warning light
comes on for a few seconds
4) when the ignition is switched on.
The coolant temperature is too high or the
coolant level too low if the warning light
does not go out or flashes while driving. 3 peeps sound as an additional warning signal.
In this case stop and switch the engine off
and check the coolant level; top up the
coolant as necessary. Do not continue your journey
if for some reason it is not possible under the condi-
tions prevailing to top up with coolant.
Keep the engine switched off
and obtain
professional assistance from a specialist garage, otherwise it could lead to severe engine damage. If the coolant is within the specified range, the increased temperature may be caused by an operating problem at the coolant fan.
Check the fuse for the coolant fan, replace
it if necessary
⇒page 234, “Fuse assignment in engi
ne compartment - version 1” or
⇒ page 236, “Fuse assignment in engine compartment - version 2”. Do not continue driving
if the warning light does not go off although the fluid is at the
correct level and also the fuse of the fan is in proper order. Contact a specialist garage to obtain assistance. Please also refer to the additional instructions
⇒page 207, “Cooling system”.
The following text will be displayed in the information display*:
Check coolant! Owner's manual
WARNING
•
If you must stop for technical reasons, then park the vehicle at a safe
distance from the traffic and switch of
f the engine and switch on the hazard
warning light system
⇒page 58.
•
Take care when opening the coolant expa
nsion bottle. If the engine is hot,
the cooling system is pressurized - risk of
scalding! It is best
to allow the engine
to cool down before removing the cap.•
Do not touch the coolant fan The coolant fan may switch on automatically
even if the ignition is off.Traction control system (TCS)
The warning light
comes on for a few seconds when the ignition is switched on.
The warning light flashes quickly when a control cycle is activated while driving.The warning light flashes slowly if the TCS system is switched off.
4)The warning light
on vehicles fitted with information display does not come on after switching
the ignition on, but only if the coolant temperatur
e is too high or the coolant level is too low.
sgg.6.book Page 34 Thursday, September 24, 2009 2:32 PM
Instruments and Indicator/Warning Lights
35
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
The warning light lights up permanently if there is a fault in the TCS system. The fact that the TCS system operates together with the ABS means that the TCS warning light will also come on if the ABS system is not operating properly. If the warning light
comes on immediately after starting the engine, the TCS system
can be switched off for technical reasons. In this case, the TCS system can be switched on again by switching the ignition on and off. If the warning light goes out, the TCS system is fully functional again. Further information about the TCS
⇒page 165, “Traction control system (TCS)”.
Note
If the battery has been disconnected
and reconnected, the warning light
comes on
after switching on the ignition. The warning light must go out after driving a short distance.Electronic stability programme (ESP)*
The warning light
comes on for a few seconds when
the ignition is switched on.
When the ESP helps to stabilise the vehicle (for example when applying and releasing a braking force to an individual wheel), then the warning light
flashes quickly in the
information display. The ESP system cannot be switched off, the
TCS system can only be switched off by
pressing the button
⇒page 163, fig. 154
, then the warning light flashes slowly
.
The warning light lights up permanently
if there is a fault in the ESP system.
The fact that the ESP system operates together with the ABS means that the ESP warning light will also come on if the ABS system is not operating properly. If the warning light
comes on immediately after starting the engine, the ESP system
can be switched off for technical reasons. In this case, the ESP system can be switched on again by switching the ignition on and off. If the warning light goes out, the ESP system is fully functional again. Further information on the ESP
⇒page 163, “Electronic stability programme (ESP)*”.
Electronic Differential Lock (EDL)* The EDL is a part of the ESP. A fault in the
EDL is indicated by th
e ESP warning light in
the instrument cluster. Have the vehicle inspected immediately by your specialist garage. Further information on the EDL
⇒page 164, “Electronic Differential Lock
(EDL)*”.
Note
If the battery has been disconnected
and reconnected, the warning light
comes on
after switching on the ignition. The warning light must go out after driving a short distance.Selector lever lock*
If the
green
warning light
lights up, operate the brake pedal. This is necessary, in
order to be able to move the selector lever out of the position
P or N.
Further information about the selector lever lock
⇒page 123.
Tyre inflation pressure*
The warning light
lights up, if there is a substantial drop in inflation pressure in one
of the tyres. Reduce the speed and check or
correct as soon as possible the inflation
pressure in the tyres
⇒page 215.
If the warning light flashes, there is a system fault. Visit the nearest specialist garage and have the fault rectified. Further information about tyre pressure-control system
⇒page 169.
WARNING
•
When the warning light
lights up, immediately reduce the speed and
avoid sudden steering and brake manoeuvr
es. Please stop the vehicle without
delay at the nearest possible stop and in
spect the tyres and their inflation pres-
sures.•
Under certain circumstances (e.g. sporty style of driving, wintry or unpaved
roads) the warning light
can be delayed or does not light up at all.
sgg.6.book Page 35 Thursday, September 24, 2009 2:32 PM
Intelligent Technology
163
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Driving TipsIntelligent TechnologyElectronic stability programme (ESP)*GeneralGeneral The ESP aids you in maintaining control of
your vehicle in situations in which the
vehicle is driving at its dynamic limits, such as
entering a curve fast. The risk of skidding
is reduced and your vehicle thus offers greater driving stability depending on the conditions of the road surface. The system operates at all speeds. The following systems are integrated into the electronic stability programme:•
electronic Differential Lock (EDL),
•
traction control system (TCS),
•
active driver-steering recommendation (DSR),
•
antilock brake system (ABS),
•
brake Assist,
•
uphill-Start off-Assist.
The ESP system cannot be switched off, the
TCS system can only be switched off by
pressing the button
⇒fig. 154
, then the ESP warning light flashes slowly
.
Operating principle The ESP switches on automatically when the engine is started and then conducts a self-test. The ESP control unit processes data from the individual systems. It also proc- esses additional measurement data which are supplied by highly sensitive sensors: the rotational velocity of the vehicle about its ve
rtical axis, the lateral acceleration of the
vehicle, the braking pressure and the steering angle. The direction which the driver wishes to take is determined based on the steering angle and the speed of the vehicle and is co
nstantly compared with the actual behav-
iour of the vehicle. If
differences exist, such as the vehi
cle beginning to skid, the ESP will
automatically brake the appropriate wheel. The car is stabilised again by the forces wh
ich take effect when the wheel is braked.
Intervention into the brake system takes place primarily on the outer front wheel of a vehicle which tends to oversteer (tendency for the rear of the vehicle to break away) while occurs this is on the inner rear wh
eel of a vehicle whic
h tends to understeer
(tendency to shift out of the curve). This braking control cycle is accompanied by noises. During an intervention of the system, the warning light
flashes quickly in the instru-
ment cluster
⇒page 35.
The ESP operates in combination with the ABS
⇒page 167, “Antilock brake system
(ABS)”. If there is a fault in the ABS system, the ESP also does not operate. The ESP warning light lights up in the inst
rument cluster when there is a fault on the
ESP
⇒page 35.WARNING
It is also not possible for the ESP to overcome the physical limits of the vehicle. Even if a vehicle fitted with ESP you should still always adapt your style of driving to the condition of the road surfac
e and the traffic situation. This partic-
ularly applies when driving on slippery
and wet roads. The increased safety
Fig. 154 ESP switch
sgg.6.book Page 163 Thursday, September 24, 2009 2:32 PM
Intelligent Technology
164
offered must not tempt you to take greater risks than otherwise - risk of an acci- dent!
Note
•
All four wheels must be fitted with the same tyres in order to achieve problem-free
operation of the ESP. Differing rolling circum
ferences of the tyres can lead to an unde-
sirable reduction in the engine output.•
Changes to vehicle (e.g. on engine, on th
e brakes, on chassis or another combina-
tion of tyres and wheels) can influence the function of the ESP
⇒page 221, “Accesso-
ries, changes and replacement of parts”.Electronic Differential Lock (EDL)* The electronic differential lock prev
ents an individual wheel from slip-
ping.Models fitted with ESP ar
e equipped with electronic differential lock (EDL).
General The EDL makes it much easier, and sometimes
at all possible, to start off, accelerate
and climb a steep hill when the conditions of the road surface are unfavourable. Operating principle The EDL is activated automaticall
y, that is without any action
on the part of the driver.
It monitors the speeds of the driven wheels with the aid of the ABS sensors. Should only
one
drive wheel begin spinning on a slippery surface there will be an appreciable
difference in the speed of the driven wheels. The EDL function brakes the slipping wheel and the differential transmits a greate
r driving force to the other driven wheel.
This control process is also accompanied by noises. Overheating of the brakes The EDL switches off automatica
lly if unusually severe stresses exist in order to avoid
excessive heat generation in the disc brake on the wheel which is being braked. The vehicle can continue to be driven and has
the same characteristics as a vehicle not
fitted with EDL.
The EDL switches on again automatically
as soon as the brake has cooled down.
EDL Off-road* After switching on the Off-road mode
⇒page 170, EDL Off-road is activated.
EDL Off-road is matched in such a way that it assists the traction of the vehicle when driving on an unfirm ground. EDL is activated earlier in the Off-road mode than in the normal mode. The brake pres- sure builts up more quickly on the slipping
wheel, on one axle, as well as diagonally.
WARNING
•
Carefully depress the accelerator when
accelerating on uniformly slippery
road surfaces, such as ice and snow. Th
e driven wheels might still spin despite
the EDL and affect the stability of
the vehicle - risk of an accident!
•
You should always adapt your style of driving to the condition of road
surface and to the traffic situation even
when your vehicle is fitted with EDL.
The increased safety offered must not tempt you to take greater risks than otherwise - risk of an accident!
Note
•
If the ABS or ESP warning light comes on, this may also indicate a fault in the EDL.
Please have the vehicle inspected as soon
as possible by a specialist garage.
•
Changes to vehicle (e.g. on engine, on the brakes, on chassis or another combina-
tion of tyres and wheels) can influence the function of the EDL
⇒page 221, “Accesso-
ries, changes and replacement of parts”.
WARNING (continued)
sgg.6.book Page 164 Thursday, September 24, 2009 2:32 PM
Intelligent Technology
165
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Traction control system (TCS) The traction control system prevents
the driven wheels from spinning
when accelerating.General The TCS makes it much easier, and sometimes at
all possible, to start off, accelerate and
climb a steep hill when th
e conditions of the road
surface are unfavourable.
Operating principle The TCS switches on automatically when th
e engine is started and then conducts a
self-test. The system monitors the speeds of the driven wheels with the aid of the ABS sensors. If the wheels are spinning, the force transmitted to the road surface is auto- matically adapted by reducing the engine speed. The system operates at all speeds. The TCS operates in combination with the ABS
⇒page 167, “Antilock brake system
(ABS)”. The TCS will not function if a fault exists in the ABS system. The TCS warning light lights up in the instru
ment cluster when there is a fault on the
TCS
⇒page 34.
During an intervention of the system, the TCS warning light
flashes quickly in the
instrument cluster
⇒page 34.
Switching off You can switch the TCS off and on again as yo
u wish. On vehicles fitted with ABS, you
can switch off the TCS by pressing the button
⇒fig. 155
, on vehicles fi
tted with ESP*,
you can switch off the TCS wi
th the aid of the button
⇒page 163, fig. 154
. The TCS
warning light
flashes slowly in the instrument cluster if the system is switched off
⇒ page 34. The TCS should normally always
be switched on. It may be good practice in certain
exceptional cases, such as when you wish to
have wheel slip, to switch off the system.
Examples:•
when driving with snow chains
•
when driving in deep snow or on a loose surface
•
when it is necessary to rock a vehicle when it has become stuck.
Then you should switch on the TCS again. TCS Off-road* After switching on the Off-road mode
⇒page 170, TCS Off-road is activated.
TCS Off-road provides a more effective a
cceleration of the vehicle on an unfirm
ground, as it allows higher traction be
tween the slipping wheels and the ground.
The system operates when starting off or at low speeds.
WARNING
You should always adjust your style of driving to the conditions of the road surface and the traffic situation. The increased safety offered must not tempt you to take greater risks than otherwise - risk of an accident!
Note
•
All four wheels must be fitted with the same tyres in order to achieve problem-free
operation of the TCS. Differing rolling circumferences of the tyres can lead to an unde- sirable reduction in the engine output.•
Changes to vehicle (e.g. on engine, on the brakes, on chassis or another combina-
tion of tyres and wheels) can influence the function of the TCS
⇒page 221, “Accesso-
ries, changes and replacement of parts”.
Fig. 155 TCS switch
sgg.6.book Page 165 Thursday, September 24, 2009 2:32 PM
Driving and the Environment
180
Note
After driving through a body of water, we
recommend that the vehi
cle is checked by a
specialist garage.Off-road drivingImportant information
WARNING
•
Never drive too fast, particularly not around curves, and never undertake
extreme driving manoeuvres.•
Always adjust your speed and adapt your style of driving to suit road, off-
road, traffic and weather conditions.•
In case the vehicle is stationary on a hi
llside at a steep angl
e, do not exit the
vehicle when it is facing downhill. Throug
h this the overall centre of gravity can
shift in such a way that the vehicle tilts and rolls down the hillside - hazard! Always carefully exit your vehicle on the side facing uphill
⇒page 186.
•
A lack of experience and knowledge when
driving off-road can lead to crit-
ical situations an
d serious injuries.
•
Never choose a dangerous route and never take a risk which could jeop-
ardize your safety and that of your passengers. If you cannot go on or if you doubt the safety of the route, turn back and choose another way. Even a terrain, which looks harmless, can be difficult and dangerous, and may bring you and your passengers into
a critical
situation.
•
If you have not fastened your seat belt correctly or you are not wearing your
seat belt at all, or you are holding th
e steering wheel incorrectly when driving
off-road, the risk of severe or even fata
l injuries increases.
Correctly fastened
seat belts reduce serious injuries in case of sudden braking manoeuvers and accidents. As long as the vehicle is in motion, always have your seat belt and those of your passen
gers correctly fastened. Take yo
ur thumbs off the steering
wheel when driving off-road. Should resist
ance build up in front of the wheels,
the steering wheel may suddenly and unexpect
edly spin and hur t you. Hold the
steering wheel with both hands firmly on
the outer edge in the 9 o'clock and 3
o'clock position.•
If you have not fastened your seat belt correctly or you are not wearing your
seat belt at all, or you are holding th
e steering wheel incorrectly when driving
off-road, the risk of severe or
even fatal injuries increases.
•
Correctly fastened seat belts reduce serious injuries in case of sudden
braking manoeuvers and accidents. Th
erefore you and your passengers must
always fasten your seat belts correctl
y as long as the vehicle is moving.
•
Take your thumbs off the steering wh
eel when driving off-road. If the
wheels hit an obstacle, the steering wh
eel may suddenly and unexpectedly spin
and hurt you!•
Never use the cruise control system when driving off-road. The use of the
cruise control system when driving off-
road is unsuitable and can even be
dangerous.•
Do not drive over embankments, ramps or
hillsides at too high a speed. This
can lead to the wheels of the vehicle lifting off the ground so that you can no longer steer and control the vehicle.•
If the wheels lose contact with the
ground, for example when the vehicle
rebounds while driving over
corrugations, steer straight ahead. If the wheels
are turned when making the contact with
the ground again, the vehicle can roll
over.•
There should never be any person in front or behind the vehicle when rocks,
scrub, wood pieces or other objects ar
e placed under the wheels in order to
achieve traction on a sandy or slippery ground. Turning the wheels can trans-form these objects into dangerous “bullets” – hazard!Warning of a rolloverVehicles of this type
have a higher centre of gravit
y than ordinary vehicles. This
increases the risk of vehicle rollover when driving on-road and off-road. Therefore, you must always pay attention to the safety information which is stated in the Owner's Manual.
WARNING (continued)
sgg.6.book Page 180 Thursday, September 24, 2009 2:32 PM
Driving and the Environment
183
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
•
shovel.
Safe off-road drivingAdopt a correct seated position and always fa
sten the seat belt correctly. Make sure
that your front passenger and your passengers
seated on the rear seats always fasten
their seat belts correctly. When driving off-road, it is perhaps more useful to adopt a slightly different seated position. Depending on the terrain, an incr
eased force may be required to turn the
steering wheel because the force is transferred from the front wheels to the steering wheel. You must be seated in such a way that you have good front visibility, especially when driving uphill or dow
nhill. You must never be seat
ed in such a way that the
distance between your chest and the midd
le of the airbag cover is less than
25 cm
⇒ page 148. Under no circumstances must you drive off-ro
ad with high heels,
slippery or open
shoes. You should wear shoes which fit your fe
et well and allow you to get a feel for the
pedals.
WARNING
Observe the important guidelines
⇒page 180.
Before driving off-road•
Make sure the tyres are suitable for the planned off-road journey. Before you drive
through difficult terrai
n, equip your vehicle with off-road tyres.
•
Fill up your tank. The fuel consumption of
the vehicle is much higher when driving
off-road than when driving on the road.•
Install the towing eye at the front or at the rear before driving off-road. It is not
always possible to install the towing eye if the vehicle got stuck.•
Always check the inflation pressure of a
ll the tyres and if necessary correct it.
•
Check the vehicle tool kit and suppl
ement it according to your needs.
•
Fill with engine oil up to the line , so that the engine is sufficiently supplied with
engine oil when the vehicle is in a tilted position
⇒page 205, “Check engine oil level”.
•
Top up wash fluid.
•
Stow your load as low as possible in the vehicle and attach all the items which are
loose.Off-road driving•
Never be alone when driving off-road and be prepared to encounter unexpected
situations. Travel together with at least two off-road vehicles. Equipment with which you can call for help in an em
ergency is partic
ularly useful.
•
Drive slowly through unclear terrain.
•
You must stop when encountering difficul
t passages and explore the continuation
of the route on foot. If you cannot go on or
if you doubt the safety of the route, turn
back and choose another way.•
Drive slowly over hilltops. Make sure that
the wheels of the vehicle do not lift off
the ground, as this could severely damage
the vehicle and it may become disabled.
•
Drive slowly on difficult stretches of the route. When driving on a slippery ground,
shift up into the next higher gear and make
sure that the vehicle always stays in motion.
Do not drive too fast so that you don't lose control over your vehicle.•
If your vehicle got stuck in
sand, snow or sludge, it may be more effective to reverse
the vehicle than trying to drive forwards.•
Place stones, footmats or pieces of wood
under the spinning wheels in order to
achieve traction on a sandy or slippery ground.•
Do no drive through water before reading what you must take into account
⇒ page 179.•
Keep sufficient distance from other vehicles even at low speeds. When the first
vehicle suddenly gets stuck, the following vehi
cle can still stop in time without getting
stuck itself.•
Do not plan day trips which are too far in distance.
•
Do not use the cruise control system when
driving off-road. It is only intended for
driving on the road.
WARNING
•
The intelligent engineering of your ve
hicle cannot overco
me the physical
limits of your vehicle.
AA
sgg.6.book Page 183 Thursday, September 24, 2009 2:32 PM