Intelligent Technology
169
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
If there is a fault in the power steering, the warning light
or lights up in the instru-
ment cluster
⇒page 32.
WARNING
Contact your specialist
garage if the power steering is defective.
Tyre inflation pressu
re-control system*
The tyre inflation pressure-control system compares with the aid of the ABS sensors the speed and also the rolling circumference of the individual wheels. If the rolling circumference of a wheel is changed, the warning light
lights up in the instrument
cluster
⇒page 35 and an audible signal sounds.
The rolling circumference of the tyre
can change if:•
the tyre inflation pressure is too low,
•
the structure of the tyre is damaged,
•
the vehicle is loaded on one side,
•
the wheels of an axle are loaded heavily (e.g. when towing a trailer or when driving
uphill or downhill),•
snow chains are mounted,
•
the temporary spare wheel is mounted,
•
one wheel per axle was changed.
Basic setting of tyre inflation pressure-control system After changing the tyre inflation pressures or after changing one or several wheels, the position of a wheel on the vehicle (e.g. ex
changing the wheels between the axles) or
when the warning light lights up while drivin
g, a basic setting of the system must be
carried out as follows.•
Inflate all tyres to the specified inflation pressure
⇒page 215.
•
Switch on the ignition.
•
Press button
⇒fig. 156
for more than 2 seconds. While pressing the button,
the warning light
lights up. At the same time the memory of the system is erased
and the new calibration is started, which is confirmed with an audible signal and then the warning light
goes out.
•
If the warning light
does not go out after the basic
setting, there is a fault in the
system. Have the vehicle inspected by your nearest specialist garage. Warning light
lights up
If the tyre inflation pressure of at least one
wheel is insufficiently inflated in comparison
to the stored basic va
lue, the warning light
⇒
lights up.
Warning light
flashes
If the warning light flashes, there is a system fault. Have the vehicle inspected by your nearest specialist garage.
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.•
The driver is responsible for the correc
t tyre inflation pressures. For this
reason, the tyre inflation pressu
res must be checked regularly.
•
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.
•
The tyre inflation pressure-control system does not take away the respon-
sability from the driver for the
correct tyre inflation pressure.
Fig. 156 Button for setting the tyre infla- tion pressure control value
sgg.6.book Page 169 Thursday, September 24, 2009 2:32 PM
Fuses and light bulbs
237
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Fuse assignment in the dash panelCertain electrical components are only standard on certain vehicle model versions or only suppliable as optional
equipment for certain models.
No.
Power consumer
Amperes
1
Heating of the gearbox ve
ntilation (diesel engine)
Control unit for automatic gearbox DQ200
1010
2
To w i n g d e v i c e
20
3
To w i n g d e v i c e
15
4
Not assigned
5
Air blower for heating, radiat
or fan, air conditioning sys-
tem, Climatronic
40
6
Rear window wiper
15
7
Not assigned
8
To w i n g d e v i c e
15
9
Central control unit - interior lights
10
10
Rain sensor, light switch, diagnostic socket
10
11
Left side cornering lights
10
12
Right side cornering lights
10
13
Radio, changer for mobile navigation
15
Fig. 196 Schematic representation of the fuse carrier in the dash panel
14
To w i n g d e v i c e
5
15
Light switch
5
16
Heatable washing nozzles, regulator for seat heating
5
17
Control unit for headlamp be
am adjustment and head-
light swivel
5
18
Diagnostic socket, engine
control unit, brake sensor
10
19
Control unit for ABS, ESP, swit
ch for tyre air pressure con-
trol, control unit for parking aid, switch for Offroad mode
5
20
Switch and control unit for airbag
5
21
WIV, parking light, dimming mirrors, pressure sensor, tele- phone preinstallation, air mass meter
5
22
Instrument cluster, control
unit for electromechanical
power steering, Haldex
5
23
Central locking system and bonnet lid
15
24
Rear power window
30
25
Rear wind
ow heater
Rear window he
ater, Auxiliary heating (auxiliary heating
and ventilation)
25 30
26
Power socket in the luggage compartment
20
27
Electric sliding/tilting roof, electric sun screen
30
28
Fuel pump relay, control unit for fuel pump, injection valves
15
29
Front power window
30
30
front and rear lighter
20
31
Headlight cleaning system
20
32
Front seat heating
20
33
Heating, Climatic, Climatronic
7,5
No.
Power consumer
Amperes
sgg.6.book Page 237 Thursday, September 24, 2009 2:32 PM
