184Driving and operatingThe permissible gross train weight
must not be exceeded. This weight is
specified on the identification plate
3 236.
Vertical coupling load The vertical coupling load is the load
exerted by the trailer on the coupling
ball. It can be varied by changing the
weight distribution when loading the
trailer.
The maximum permissible vertical
coupling load (75 kg) is specified on
the towing equipment identification
plate and in the vehicle documents.
Always aim for the maximum load,
especially in the case of heavy
trailers. The vertical coupling load
should never fall below 25 kg.Rear axle load
When the trailer is coupled and the
towing vehicle fully loaded, the
permissible rear axle load (see
identification plate or vehicle
documents) may be exceeded by 100 kg, the gross vehicle weight
rating may be exceeded by 100 kg. If
the permissible rear axle load is
exceeded, a maximum speed of
100 km/h applies.
Towing equipmentCaution
When operating without a trailer,
remove the coupling ball bar.
Stowage of coupling ball bar
The coupling ball bar is stowed in a
bag and must be secured in the load
compartment.
Vehicle with spare wheel
The bag with the coupling ball bar is
placed near the spare wheel under
the load floor cover.
Direct the strap through the rim and around the wheel, wrap it around the
coupling ball bar and tighten the strap
to secure the bag.
188Vehicle careVehicle careGeneral Information...................189
Accessories and vehicle modifications .......................... 189
Vehicle storage ........................189
End-of-life vehicle recovery .....190
Vehicle checks ........................... 190
Performing work ......................190
Bonnet ..................................... 190
Engine oil ................................. 191
Engine coolant ......................... 192
Washer fluid ............................ 193
Brakes ..................................... 193
Brake fluid ............................... 194
Vehicle battery ......................... 194
Diesel fuel system bleeding .....195
Wiper blade replacement ........196
Bulb replacement .......................196
Halogen headlights ..................196
Adaptive forward lighting .........198
Fog lights ................................. 199
Front turn signal lights .............200
Tail lights ................................. 201
Side turn signal lights ..............202
Number plate light ...................203Interior lights ............................ 204
Instrument panel illumination ...204
Electrical system ........................204
Fuses ....................................... 204
Engine compartment fuse box . 205
Instrument panel fuse box .......207
Load compartment fuse box ....208
Vehicle tools .............................. 210
Tools ........................................ 210
Wheels and tyres .......................211
Winter tyres ............................. 211
Tyre designations ....................211
Tyre pressure monitoring
system .................................... 211
Tyre pressure .......................... 215
Tread depth ............................. 216
Changing tyre and wheel size . 216
Wheel covers ........................... 217
Tyre chains .............................. 217
Tyre repair kit .......................... 217
Wheel changing .......................220
Spare wheel ............................ 223
Jump starting ............................. 226
Towing ....................................... 228
Towing the vehicle ...................228
Towing another vehicle ...........229Appearance care .......................230
Exterior care ............................ 230
Interior care ............................. 232
Vehicle care209No.Circuit1Soft top control module, power
rail right2–3Parking assist4Selective catalytic reduction
system5–6–7Power seat8Soft top control module9Selective catalytic reduction
system10Selective catalytic reduction
system11Trailer module, tyre pressure
monitor and rear view camera12Soft top control module, tail
lights13–No.Circuit14Rear seat electrical folding15–16Seat ventilation, rear view
camera, soft top control module17–18–19Steering wheel heating20–21Seat heating22–23Soft top control module, power
rail left24Selective catalytic reduction
system25–26Jumper fuse for non logistic
mode27Passive entry28–No.Circuit29Hydraulic unit30–31–32Flex Ride
210Vehicle careVehicle tools
Tools
Vehicles with spare wheel
Open the load floor cover. The jack,
the tools and a strap for securing a
damaged wheel are in the tool box
below the spare wheel in the load
compartment.
The wheel wrench and the towing eye
are in the tool bag located in the spare wheel well near the tool box. The toolbag is fixated with a tether to the stow
rod. Remove tool box and tool bag
tether from the stow rod to access the
tools in the bag.
Spare wheel 3 223.
Vehicles with tyre repair kit
Some tools and the towing eye are
located together with the tyre repair
kit in a tool box in the load
compartment below the floor cover.
Vehicles with tyre repair kit and
flat load compartment floor
Some tools and the towing eye are
located together with the tyre repair
kit in a bag, which is fixed at the front left lashing eye in the load
compartment.
Vehicle care211Wheels and tyres
Wheels
On vehicles with Diesel engines no
steel rims and only special, for this
vehicle approved alloy wheels are
permitted.
Tyre condition, wheel condition
Drive over edges slowly and at right
angles if possible. Driving over sharp
edges can cause tyre and wheel
damage. Do not trap tyres on the kerb when parking.
Regularly check the wheels for
damage. Seek the assistance of a
workshop in the event of damage or
unusual wear.
Winter tyres
Winter tyres improve driving safety at temperatures below 7 °C and shouldtherefore be fitted on all wheels.
All tyre sizes are permitted as winter
tyres 3 247.Use tyre size 245/45 R18 only as
winter tyres.
On vehicles with Diesel engines, no
steel rims and only special, vehicle-
approved alloy wheels are permitted.
In accordance with country-specific
regulations, affix the speed sticker in
the driver's field of view.
Tyre designations
E.g. 235/55 R 17 99 V235:Tyre width, mm55:Cross-section ratio (tyre height
to tyre width), %R:Belt type: RadialRF:Type: RunFlat17:Wheel diameter, inches99:Load index e.g. 99 is
equivalent to 775 kgV:Speed code letter
Speed code letter:
Q:up to 160 km/hS:up to 180 km/hT:up to 190 km/hH:up to 210 km/hV:up to 240 km/hW:up to 270 km/hChoose a tyre appropriate for the
maximum speed of your vehicle.
The maximum speed is achievable at kerb weight with driver (75 kg) plus
125 kg payload. Optional equipment
could reduce the maximum speed of
the vehicle.
Performance 3 242.
Directional tyres
Fit directional tyres such that they roll in the direction of travel. The rolling
direction is indicated by a symbol
(e.g. an arrow) on the sidewall.
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.
212Vehicle careCaution
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 type approval.
The current tyre pressures can be
shown in the Vehicle Information
Menu in the Driver Information
Centre.
The menu can be selected by the buttons on the turn signal lever.
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
indicating the corresponding tyre in the Driver Information Centre.
The system considers the tyre
temperature for the warnings.
Temperature dependency 3 215.
A detected low tyre pressure
condition is indicated by illumination
of control indicator w 3 93.
If w illuminates, stop as soon as
possible and inflate the tyres as
recommended 3 247.
Vehicle care213If w flashes for 60-90 seconds then
illuminates continuously, there is a fault in the system. Consult a
workshop.
After inflating, 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 driving, this
could be an indicator for approaching
a low tyre pressure condition. Check
tyre pressure.
Vehicle messages 3 102.
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 willuminates. 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 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 3 247, and
select the appropriate setting in the Tyre load menu in the Driver
Information Centre 3 95. This setting
is the reference for the tyre pressure
warnings.The menu Tyre Load only appears if
the vehicle is at a standstill and the
parking brake is applied. On vehicles
with automatic transmission, the
selector lever must be in P.
Select:
● Light for comfort pressure up to
3 people
● Eco for Eco pressure up to
3 people
● Max for full loading
214Vehicle careTyre 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 a 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 the 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 wheelpositions. If it takes longer, the
matching process stops and must be restarted.
The tyre pressure sensor matching
process is as follows:
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. Use 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.
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 the sensor
identification code has been
matched to the left side rear tyre,
and the tyre pressure sensor
matching process is no longer
active.
13. Turn off the ignition.