Vehicle care185No.Circuit1–2–3Power windows4Voltage transformer5Body control module 16Body control module 27Body control module 38Body control module 49Body control module 510Body control module 611Body control module 712Body control module 813–14Tailgate15Airbag module16Diagnose connector17Ignition switchNo.Circuit18Air conditioning system19Audio amplifier20Parking assist21Brake switch22Infotainment system23USB charging port24Infotainment system25OnStar26Instrument panel27Seat heating, driver28–29–30Ignition31Antitheft alarm system32Seat heating, passenger33Heated steering wheel34–
Vehicle care189The tyre pressure tables show all
possible tyre combinations 3 227.
Identify the respective tyre.
For the tyres approved for your
vehicle, refer to the EEC Certificate of
Conformity provided with your vehicle
or other national registration
documents.
The driver is responsible for correct
adjustment of tyre pressure.9 Warning
If the pressure is too low, this can
result in considerable tyre warm-
up and internal damage, leading to tread separation and even to tyre
blow-out at high speeds.
9 Warning
For specific tyres the
recommended tyre pressure as
shown in the tyre pressure table
may exceed the maximum tyre
pressure as indicated on the tyre.
Never exceed the maximum tyre
pressure as indicated on the tyre.
If the tyre pressure must be reduced
or increased, switch off ignition. After
adjusting tyre pressure switch on
ignition and select the relevant setting on the page Tyre load in the Driver
Information Centre 3 92.
Temperature dependency
The tyre pressure depends on the
temperature of the tyre. During
driving, tyre temperature and
pressure increase. Tyre pressure
values provided on the tyre
information label and tyre pressure
chart are valid for cold tyres, which
means at 20 °C.
The pressure increases by nearly
1.5 psi for a 10 °C temperature
increase. This must be considered
when warm tyres are checked.
The tyre pressure value displayed in
the Driver Information Centre shows
the real tyre pressure. A cooled down tyre will show a decreased value,
which does not indicate an air leak.Tyre pressure monitoring
system
The tyre pressure monitoring system
checks the pressure of all four tyres
once a minute when vehicle speed
exceeds a certain limit.Caution
Tyre pressure monitoring system
warns only about low tyre pressure condition and does not replace
regular tyre maintenance by the
driver.
All wheels must be equipped with pressure sensors and the tyres must
have the prescribed pressure.
Notice
In countries where the tyre pressure
monitoring system is legally
required, the use of wheels without
pressure sensors will invalidate the
vehicle operating permit.
The current tyre pressures can be
shown in the Vehicle Information
Menu in the Driver Information
Centre.
190Vehicle careThe menu can be selected by
pressing the buttons on the stalk.
Press MENU to select the Vehicle
Information Menu X.
Turn the adjuster wheel to select the
tyre pressure monitoring system.
System status and pressure warnings
are displayed by a message with the
corresponding tyre flashing in the
Driver Information Centre.
The system considers the tyre
temperature for the warnings.
Temperature dependency 3 188.
A detected low tyre pressure
condition is indicated by the control
indicator w 3 90.
If w illuminates, stop as soon as
possible and inflate the tyres as
recommended 3 227.
If
w flashes for 60-90 seconds then
illuminates continuously, there is a
fault in the system. Consult a
workshop.
After inflating, some driving may be
required to update the tyre pressure
values in the Driver Information
Centre. During this time w may
illuminate.
If w illuminates at lower temperatures
and extinguishes after some driving,
this could be an indicator for
approaching a low tyre pressure
condition. Check tyre pressure.
Vehicle messages 3 98.
If the tyre pressure must be reduced
or increased, switch off ignition.
Only mount wheels with pressure
sensors, otherwise the tyre pressure
will not be displayed and w
illuminates continuously.
A spare wheel or temporary spare
wheel is not equipped with pressure
sensors. The tyre pressure
monitoring system is not operational
for these tyres. Control indicator w
Vehicle care191illuminates. For the further three
tyres, the system remains
operational.
The use of commercially-available
liquid tyre repair kits can impair the
function of the system. Factory-
approved repair kits can be used.
Operating electronic devices or being
close to facilities using similar wave
frequencies could disrupt the tyre
pressure monitoring system.
Each time the tyres are replaced, tyre pressure monitoring system sensors
must be dismounted and serviced.
For the screwed sensor; replace
valve core and sealing ring. For the
clipped sensor; replace complete
valve stem.
Vehicle loading status Adjust tyre pressure to load condition
according to the tyre information label or tyre pressure chart 3 227, and
select the appropriate setting in the
menu Tyre Load in the Driver
Information Centre, Vehicle
Information Menu 3 92 . This setting is
the reference for the tyre pressure
warnings.The Tyre Load menu only appears if
the vehicle is at a standstill and the
parking brake is applied. On vehicles
with automatic transmission the
selector lever has to be in P.
Select:
● Light for comfort pressure up to
3 people.
● Eco for Eco pressure up to
3 people.
● Max for full loading.
Tyre pressure sensor matching
process
Each pressure sensor has a unique
identification code. The identification
code must be matched to a new tyre /
wheel position after rotating the tyres
or exchanging the complete wheel set and if one or more pressure sensors
were replaced. The pressure sensor
matching process should also be
performed after replacing a spare tyre
with a road tyre containing the
pressure sensor.
The malfunction light w and the
warning message or code should go
off at the next ignition cycle. The
sensors are matched to the wheel
positions, using a relearn tool, in the following order: left side front wheel,
right side front wheel, right side rear
wheel and left side rear wheel. The
turn light at the current active position
is illuminated until sensor is matched.
Consult a workshop for service. There are 2 minutes to match the first wheelposition, and 5 minutes overall to
match all four wheel positions. If it
takes longer, the matching process
stops and must be restarted.
192Vehicle careThe tyre pressure sensor matchingprocess is:
1. Apply the parking brake.
2. Turn the ignition on.
3. On vehicles with manual transmission automated: Press
and hold brake pedal. Move and
hold the selector lever for
5 minutes in position N until P is
displayed in the Driver
Information Centre. P indicates
that the sensor matching process
can be started.
On vehicles with manual
transmission: select neutral.
4. Use MENU on the stalk to select
the Vehicle Information Menu in
the Driver Information Centre.
5. Turn the adjuster wheel to scroll to
the tyre pressure menu.
6. Press SET/CLR to begin the
sensor matching process. A
message requesting acceptance
of the process should be
displayed.7. Press SET/CLR again to confirm
the selection. The horn sounds
twice to indicate that the receiver
is in relearn mode.
8. Start with the left side front wheel.
9. Place the relearn tool against the tyre sidewall, near the valve stem.Then press the button to activate
the tyre pressure sensor. A horn
chirp confirms that the sensor
identification code has been
matched to this wheel position.
10. Proceed to the right side front wheel, and repeat the procedure
in Step 9.
11. Proceed to the right side rear wheel, and repeat the procedure
in Step 9.
12. Proceed to the left side rear wheel, and repeat the procedure
in Step 9. The horn sounds twice
to indicate that the sensor
identification code has been
matched to the left side rear
wheel, and the tyre pressure
sensor matching process is no
longer active.
13. Turn off the ignition.14. Set all four tyres to the recommended air pressure level
as indicated on the tyre
information label.
15. Ensure the tyre loading status is set according to the selected
pressure 3 92.
Tread depth
Check tread depth at regular
intervals.
Tyres should be replaced for safety
reasons at a tread depth of 2-3 mm
(4 mm for winter tyres).
For safety reasons it is recommended
that the tread depth of the tyres on
one axle should not vary by more than 2 mm.
Vehicle care207
2. Screw in the towing eye as far asit will go until it stops in a
horizontal position.
3. Attach a tow rope – or better still a
tow rod – to the towing eye.
Adam Rocks
1. Wrap a cloth around the tip of a flat
screwdriver to prevent paint
damage. Disengage the small cap
with the screwdriver at the marked position.
2. Screw in the towing eye as far as it will go until it stops in a
horizontal position.
3. Attach a tow rope – or better still a
tow rod – to the towing eye.
General
The towing eye must only be used for towing and not for recovering the
vehicle.
Switch on ignition to release steering
wheel lock and to permit operation of
brake lights, horn and windscreen
wiper.
Switch the selector lever to neutral.
Release the parking brake.
239Cruise control ...................... 91, 146
Cupholders .................................. 52
Curtain airbag system .................. 44
D
Danger, Warnings and Cautions ...4
Daytime running lights ...............112
Declaration of conformity ............229
Door open .................................... 91
Doors ............................................ 24
Driver assistance systems ..........146
Driver Information Centre .............92
Driving hints ................................ 128
E Electric adjustment ......................27
Electrical system......................... 181
Electronic climate control system 121
Electronic driving programmes ..139
Electronic Stability Control.......... 143
Electronic Stability Control and Traction Control system ............89
Electronic Stability Control off....... 89 End-of-life vehicle recovery .......166
Engine compartment fuse box ...182
Engine coolant ........................... 169
Engine coolant temperature gauge ....................................... 82
Engine data ............................... 221
Engine exhaust .......................... 134
Engine identification ...................217Engine oil ................... 168, 214, 218
Engine oil pressure ......................90
Entry lighting .............................. 116
Event data recorders ..................234
Exhaust filter ......................... 90, 134
Exit lighting ................................ 116
Exterior care .............................. 209
Exterior light ................................. 91
Exterior lighting ....................12, 110
Exterior mirrors ............................. 27
F
Fault ........................................... 139
First aid ......................................... 68
First aid kit ................................... 68
Fixed air vents ........................... 126
Flex-Fix system ............................ 54
Folding mirrors ............................. 27
Front airbag system .....................43
Front seats.................................... 33
Front storage ................................ 53
Front turn lights .......................... 175
Fuel............................................. 159
Fuel for liquid gas operation .......161
Fuel for petrol engines ...............159
Fuel gauge ................................... 81 Fuel selector ................................ 81
Fuses ......................................... 181G
Gauges ......................................... 80
Gear shifting ................................. 89
Glass panel .................................. 31
Glovebox ..................................... 52
H
Halogen headlights ....................172
Hand brake ......................... 140, 141
Hazard warning flashers ............112
Headlight flash ........................... 111
Headlight range adjustment ......112
Headlights................................... 110 Headlights when driving abroad 112
Head restraint adjustment .............8
Head restraints ............................ 32
Heated mirrors ............................. 28
Heated rear window ..................... 30
Heated steering wheel .................72
Heating ........................................ 36
Heating and ventilation system . 118
High beam ........................... 91, 111
Hill start assist ........................... 141
Horn ....................................... 13, 73
I
Identification plate .....................217
Ignition switch positions .............129
Immobiliser ............................ 26, 91
Indicators ...................................... 80
Inductive charging ........................78