Page 48 of 261
46Seats, restraintsSuspension seat longitudinal
adjustment
Pull handle, slide seat, release
handle.
Try to move the seat back and forth to ensure that the seat is locked in place.
Backrest inclination
Pull lever, adjust inclination and
release lever. Allow the seat to
engage audibly.
Suspension seat backrest inclination
Pull lever, adjust inclination and
release lever. Allow the seat to
engage audibly.
Page 49 of 261
Seats, restraints47Seat height
Lever pumping motion
up:seat higherdown:seat lowerSuspension seat height
Pull up front release lever up to adjustheight of front part of seat.
Pull up rear release lever to adjust height of rear part of seat.
Lumbar support
Adjust lumbar support to suit personal requirements.
Increasing and decreasing support:
turn the handwheel while relieving the load on the backrest.
Page 50 of 261
48Seats, restraintsSuspension seat lumbar support
Adjust lumbar support to suit personalrequirements.
Operate hand pump repeatedly
(located on underside of unit) to
increase firmness.
Press release button (located at front
of unit) to decrease firmness.
Suspension seat sensitivity
Rotate knob to adjust the sensitivity of the suspension seat.
turn right:more stiffturn left:less stiffSwivel seat adjustment
Seat positioning
Move handle 2, slide seat, release
handle.
Try to move the seat back and forth to ensure that the seat is locked in place.
Seat backrests
Pull lever 1, adjust inclination and
release lever. Allow the seat to
engage audibly.
Seat base angle
Move handle 3 to adjust angle of seat
base.
Page 52 of 261
50Seats, restraintsHeating
Press ß for the respective seat; LED
in switch illuminates. Press other end of rocker switch to turn seat heating
off.
Vehicles with suspension seat: switch ß is located below the backrest
release lever on the outboard side of
the seat.
Seat heating is thermostatically
controlled and switches off
automatically when seat temperature
is sufficient. LED also illuminates
when the system is on, not just when
heating is active.
Prolonged use for people with
sensitive skin is not recommended.
Seat heating is operational when the
engine is running.Rear seats
Rear seat access
To facilitate access to the 3rd row
seats (where fitted), open sliding side door and pull release lever on foldingaccess seat in the 2nd row and fold
the seat backrest forwards. If
necessary, unfasten seat belts from
their buckles.
Page 134 of 261

132Driving and operatingDriving and
operatingDriving hints ............................... 133
Driving economically ...............133
Control of the vehicle ...............133
Steering ................................... 133
Starting and operating ...............134
New vehicle running-in ............134
Ignition switch positions ...........134
Starting the engine ..................135
Idle speed control ....................136
Overrun cut-off ........................ 136
Stop-start system ....................136
Parking .................................... 139
Air suspension ......................... 140
Engine exhaust .......................... 142
Diesel particle filter ..................142
Catalytic converter ...................142
AdBlue ..................................... 143
Manual transmission ..................150
Manual transmission automa‐ ted .............................................. 150
Transmission display ...............150
Starting the engine ..................151
Selector lever .......................... 151Manual mode........................... 152
Electronic driving programmes 152
Fault ........................................ 153
Interruption of power supply ....154
Brakes ........................................ 154
Antilock brake system .............154
Parking brake .......................... 155
Brake assist ............................. 156
Hill start assist ......................... 156
Ride control systems .................156
Traction Control system ..........156
Electronic stability program .....157
Limited-slip rear axle ...............159
Driver assistance systems .........159
Cruise control .......................... 159
Speed limiter ........................... 163
Parking assist .......................... 163
Rear view camera ...................165
Lane departure warning ..........167
Fuel ............................................ 168
Fuel for diesel engines ............168
Refuelling ................................ 169
Fuel consumption - CO 2-
Emissions ............................... 170
Trailer hitch ................................ 171
General information .................171
Driving characteristics and towing tips .............................. 171
Trailer towing ........................... 171Towing equipment ...................172
Trailer stability assist ...............172
Auxiliary features .......................172
Power take-off ......................... 172
Page 142 of 261

140Driving and operating● Close the windows.
● Turn the ignition key to position
0 and remove it. Turn the
steering wheel until the
steering wheel lock is felt to
engage.
Lock the vehicle 3 24 and activate the
anti-theft locking system 3 34 and
anti-theft alarm system 3 34.
Air suspension
Operates automatically when the
vehicle is driven. The air suspension
system constantly adjusts the ride
height according to the vehicle load.
Caution
To ensure safe operation of the air
suspension system, do not exceed the maximum permissible gross
vehicle weight rating. Refer to
identification plate 3 225 or the
vehicle documents.
For further information on the air
suspension system, refer to the
operating instructions supplied.
Master switchCaution
The air suspension system must
be switched off when the vehicle is being towed, jump‐started, raised
off the ground or transported.
Do not switch off the air
suspension system when driving.
Jump starting 3 213, Towing the
vehicle 3 215.
The master switch is located on the
door pillar.
Switch on to enable operation and
adjustment of the air suspension
system.
Switch off to put the vehicle into
service mode.
Remote control
When increased ground clearance or improved vehicle access is required,the suspension can be raised or
lowered using the remote control.
Page 143 of 261

Driving and operating141Caution
Ensure there is adequate
clearance and that there are no
obstructions when adjusting the
suspension height.
The remote control unit is magnetic
and may be fixed to any metal part of the vehicle or stored in its holder.
With the engine running, press the appropriate button for two seconds to
adjust the suspension height.
Indicator light will flash intermittently
while height adjustment is in progress
and illuminates when complete.
If the ignition is switched on with
engine not running, the suspension
height can only be lowered.
Note
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Pre-programmed settings
Adjusts the suspension height to one
of three pre-programmed positions.
l:lowered positionk:normal positionj:raised positionCaution
If an obstacle is detected while
raising or lowering, the
suspension height is returned to the normal position after a delay.
This does not guarantee damage- free operation. Ensuring sufficient
clearance and freedom from
obstacles is the responsibility of the driver.
Manual settings
Manual adjustment can only be
performed when the vehicle is
stationary.
Select by pressing h for
two seconds , then R to raise, or S to
lower.
To exit, press any of the pre-
programmed buttons.
Note
Obstacle detection is not available
during manual adjustment.
When a certain low speed is
exceeded or when the ignition is
switched off, height adjustment is deactivated automatically and the
suspension height is returned to the
normal position.
Service modeWhen the vehicle is stationary, press
i for five seconds to put the vehicle
into service mode. The indicator light
will illuminate.
When service mode has been
activated, the air suspension master
switch must be turned off.
To exit service mode, press i again
for five seconds.
Fault
If a fault is detected, i will flash
intermittently. If service mode has been activated and there is a fault, h,
S and R will flash simultaneously.
Have the cause of the fault remedied
by a workshop.
Page 197 of 261
Vehicle care195
To help in replacing fuses, a fuse
extractor is located in the instrument
panel fuse box.
Place the fuse extractor on the
various types of fuse from the top or
side, and withdraw fuse.
Engine compartment fusebox
Located below the coolant expansion tank.
Some circuits may be protected by
several fuses.
Due to restricted accessibility, have
fuses replaced by a workshop.SymbolCircuitSRight side lightsTLeft side lightsWRight low beamaLeft low beam>Front fog lightLLeft high beamNRight high beamuABSKWindscreen wiperSymbolCircuitnHeating and ventilation
system / Air conditioningVHeated windscreenQPneumatic suspension
Instrument panel fuse box
Located behind the trim panel on the
left-hand side of the instrument panel.
Pull upper part of trim panel to
remove.
Do not store any objects behind this
panel.