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
Index 260
Changing wheels around . . . . . . . . . . . . . . . . . . . . . 217
Charging the battery . . . . . . . . . . . . . . . . . . . . . . . . . 212
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Check engine oil level . . . . . . . . . . . . . . . . . . . . . . . . 205
Child safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Side airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Child safety lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Child safety seat
on the front passenger seat . . . . . . . . . . . . . . . 157
Safety information . . . . . . . . . . . . . . . . . . . . . . . 156
Child seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Classification into groups . . . . . . . . . . . . . . . . . 158
ISOFIX system . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Use of child safety seats . . . . . . . . . . . . . . . . . . 159
Children and safety . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Chrome parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Cigarette lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Climatronic
Defrosting windows . . . . . . . . . . . . . . . . . . . . . . 105
Recirculated air mode . . . . . . . . . . . . . . . . . . . . 104
Climatronic (automatic air conditioning) . . . . . . 101
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Clothes hooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Cockpit
General view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Compartments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Convenience operation . . . . . . . . . . . . . . . . . . . . . . . . 49
Converting/masking over headlights . . . . . . . . . . 179Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
replenishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Coolant level
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Coolant quantity
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Coolant temperature gauge . . . . . . . . . . . . . . . . . . . 17
Coolant temperature/coolant level
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Cornering lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Correct seated position . . . . . . . . . . . . . . . . . . . . . . 138
Counter for distance driven . . . . . . . . . . . . . . . . . . . 18
Cruise control system . . . . . . . . . . . . . . . . . . . . . . . . 119
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Cup holder
front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
DDaylight driving lights . . . . . . . . . . . . . . . . . . . . . . . . . 53
Deactivating
an airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Deactivating an airbag . . . . . . . . . . . . . . . . . . . . . . . 154
Defrosting rear window . . . . . . . . . . . . . . . . . . . . . . . 62
De-icing the windows . . . . . . . . . . . . . . . . . . . . . . . . 195
Detachable towing device . . . . . . . . . . . . . . . . . . . . 192
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Diesel engines
Starting the engine . . . . . . . . . . . . . . . . . . . . . . . 111
Diesel particle filter . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Digital clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Direction indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Distance driven . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Door
Child safety lock . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Driving economically . . . . . . . . . . . . . . . . . . . . . . . . 174
EEDL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Electric power-operated window
Operational faults . . . . . . . . . . . . . . . . . . . . . . . . . 50
Electric sliding/tilting roof . . . . . . . . . . . . . . . . . . . . . 50
Electrically adjustable exterior mirror . . . . . . . . . . . 67
Electronic Differential Lock . . . . . . . . . . . . . . . . . . . 164
Electronic immobiliser . . . . . . . . . . . . . . . . . . . . . . . . 40
Electronic stability programme . . . . . . . . . . . . . . . 163
Electronic stability programme (ESP)
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Emergency wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Engine
starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Engine compartment
Safety information . . . . . . . . . . . . . . . . . . . . . . . . 204
Engine electronics
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
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