Vehicle care259No.Circuit14Diagnostic connector15Airbag16Power outlet17Air conditioning system18Logistics19Body control module20Body control module21Instrument panel cluster/Anti-
theft alarm system22Ignition sensor23Body control module24Body control module25Steering wheel heating26–
Load compartment fuse box
The fuse box is on the left side of the
load compartment behind a cover.
Remove the cover.
If equipped with tyre repair kit,
remove the complete box.
Fuse assignments
Vehicle care263off ignition. After adjusting tyre
pressure, switch on ignition and
select the appropriate setting on the
page Tyre load in the Driver
Information Centre, 3 101.
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
10 kPa 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.
Note
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 Driver Information
Centre.
Select the menu by the buttons on the turn signal lever.
264Vehicle careSelect Tyre pressure page under
Vehicle Information Menu ?
3 101.
System status and pressure warnings are displayed by a message
indicating the corresponding tyre in the Driver Information Centre.
The system considers the tyre
temperature for the warnings.
A detected low tyre pressure
condition is indicated by control
indicator w 3 99.
If w illuminates, stop as soon as
possible and inflate the tyres as
recommended 3 297.
If w flashes for 60-90 seconds and
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 3 106.
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 temporary spare wheel is not
equipped with pressure sensors. The
tyre pressure monitoring system is
not operational for these wheels.
Control indicator w illuminates. For
the further three wheels 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
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 3 297, and
select the appropriate setting in the Tyre load menu in the Driver
Information Centre 3 101. 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.
Vehicle care265
Select Tyre load page under Vehicle
Information Menu ? in the Driver
Information Centre 3 101.
Select: ● Light for comfort pressure up to
3 people.
● Eco for Eco pressure up to
3 people.
● Max for full load.
Tyre pressure sensor matching
process
Each tyre pressure sensor has a
unique identification code. The
identification code must be matched
to a new wheel position after rotating
the wheels or exchanging the
complete wheel set and if one or more
tyre pressure sensors were replaced. The tyre pressure sensor matching
process should also be performed
after replacing a spare wheel with a
road wheel containing the tyre
pressure sensor.
The malfunction light w and the
warning message or code should
extinguish 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 signal light at the
current active position is illuminated
until sensor is matched.
Consult your workshop for service.
There are two minutes to match the
first wheel position, and five minutes
overall to match all four wheel
positions. If it takes longer, the
matching process stops and must be
restarted.
The tyre pressure sensor matching
process is:
1. Apply the parking brake.2. Turn the ignition on.
3. On vehicles with automatic transmission: set the selector
lever to P.
On vehicles with manual
transmission: select neutral.
4. Press MENU on the turn signal
lever to select the Vehicle
Information Menu ? in the
Driver Information Centre.
5. Turn the adjuster wheel to scroll to
the tyre pressure menu.
266Vehicle care6. 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 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 the sensor
identification code has beenmatched to the left side rear tyre,
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 pressure
information label.
15. Ensure the tyre loading status is set according to the selected
pressure 3 101.
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.
The legally permissible minimum
tread depth (1.6 mm) has been
reached when the tread has worn
down as far as one of the tread wear
indicators (TWI). Their position is
indicated by markings on the
sidewall.
If there is more wear at the front than
the rear, swap round front wheels and rear wheels periodically. Ensure that
the direction of rotation of the wheels
remains the same.
Tyres age, even if they are not used.
We recommend tyre replacement
every 6 years.
278Vehicle care3. Allow both engines to idle forapprox. three minutes with the
leads connected.
4. Switch on electrical consumers (e.g. headlights, heated rear
window) of the vehicle receiving
the jump start.
5. Reverse above sequence exactly when removing leads.Towing
Towing the vehicle
Disengage cap at bottom and removedownwards.
The towing eye is stowed with the
vehicle tools 3 261.
Screw in the towing eye as far as it will
go until it stops in a horizontal
position.
Attach a tow rope – or better still a tow
rod – to the towing eye.
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.
310Exit lighting ................................ 122
Exterior care .............................. 280
Exterior light ............................... 100
Exterior lighting ....................13, 114
Exterior mirrors ............................. 29
F
Fault ........................................... 194
Favourite lists ............................. 139
Retrieving stations................... 139
Storing stations .......................139
Favourites ................................... 155
File formats Audio files................................ 143
Movie files ............................... 143
Picture files.............................. 143
First aid kit ................................... 79
Fixed air vents ........................... 180
Folding mirrors ............................. 29
Folding tray .................................. 79
Following distance ........................98
Following distance indication ......215
Forward collision alert................. 212
Front airbag system .....................53
Front fog lights ...........100, 119, 249
Front seats.................................... 38
Front storage ................................ 64
Fuel............................................. 229
Fuel for diesel engines ..............230
Fuel for petrol engines ...............229Fuel gauge ................................... 90
Funnel......................................... 231
Fuses ......................................... 254
G Gauges ......................................... 89
Gear shifting ................................. 98
General information ...143, 149,
163, 164, 233
Bluetooth ................................. 143
DAB ......................................... 141
Infotainment system ................124
Navigation ............................... 149
Phone ...................................... 164
Smartphone applications ........143
USB ......................................... 143
Glass panel .................................. 34
Glovebox ..................................... 62
Guidance ................................... 160
H
Halogen headlights ....................247
Hand brake ......................... 196, 197
Hazard warning flashers ............119
Headlight flash ........................... 116
Headlight range adjustment ......116
Headlights................................... 114
Headlights when driving abroad 117
Head restraint adjustment .............8
Head restraints ............................ 36
Heated mirrors ............................. 30Heated rear window ..................... 33
Heated steering wheel .................83
Heating ........................................ 42
Heating and ventilation system . 173
High beam ......................... 100, 115
High beam assist ................100, 115
Hill start assist ........................... 199
Home menu ................................ 131
Horn ....................................... 14, 84
I Identification plate .....................287
Ignition switch positions .............182
Immobiliser .......................... 28, 100
Indicators ...................................... 89
Info Display ................................. 105
Information displays.................... 101
Infotainment control panel ..........126
Instrument cluster ........................89
Instrument panel fuse box .........258
Instrument panel illumination .....254
Instrument panel illumination control .................................... 121
Instrument panel overview ........... 10
Intellitext ..................................... 141
Interactive driving system ...........201
Interior care ............................... 282
Interior lighting ............................ 121
Interior lights ...................... 121, 254
Interior mirrors .............................. 30