Page 50 of 249
48Seats, 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 51 of 249
Seats, restraints49Seat 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 52 of 249
50Seats, 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 54 of 249
52Seats, 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 136 of 249

134Driving and operatingDriving and
operatingDriving hints ............................... 135
Driving economically ...............135
Control of the vehicle ...............135
Steering ................................... 135
Starting and operating ...............136
New vehicle running-in ............136
Ignition switch positions ...........136
Starting the engine ..................137
Idle speed control ....................138
Overrun cut-off ........................ 138
Stop-start system ....................138
Parking .................................... 141
Air suspension ......................... 142
Engine exhaust .......................... 144
Diesel particle filter ..................144
Catalytic converter ...................144
AdBlue ..................................... 145
Manual transmission ..................152
Manual transmission automa‐ ted .............................................. 152
Transmission display ...............152
Starting the engine ..................153
Selector lever .......................... 153Manual mode........................... 154
Electronic driving programmes 154
Fault ........................................ 155
Interruption of power supply ....156
Brakes ........................................ 156
Antilock brake system .............156
Parking brake .......................... 157
Brake assist ............................. 158
Hill start assist ......................... 158
Ride control systems .................158
Traction Control system ..........158
Electronic Stability Control ......159
Limited-slip rear axle ...............161
Driver assistance systems .........161
Cruise control .......................... 161
Speed limiter ........................... 163
Active emergency braking .......165
Parking assist .......................... 167
Rear view camera ...................169
Lane departure warning ..........171
Fuel ............................................ 172
Fuel for diesel engines ............172
Refuelling ................................ 173
Trailer hitch ................................ 175
General information .................175
Driving characteristics and towing tips .............................. 175
Trailer towing ........................... 175Towing equipment ...................176
Trailer stability assist ...............176
Auxiliary features .......................176
Power take-off ......................... 176
Page 144 of 249

142Driving 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 35 and
anti-theft alarm system 3 36.
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 3 228 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 3 217.
Towing the vehicle 3 219.
The master switch is located on the
lower part of the right-hand door pillar,
behind a trim panel.
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 145 of 249

Driving and operating143Caution
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.
Notice
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 2 seconds,
then R to raise, or S to lower.
To exit, press any of the pre-
programmed buttons.
Notice
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 mode
When the vehicle is stationary, press
i for 5 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 5 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 202 of 249

200Vehicle careSymbolCircuitKWindscreen wipernHeating 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.
Some circuits may be protected by
several fuses.SymbolCircuitZInfotainment system / Seat
heating / Driver Information
Centre / Audio connec‐
tions / Alarm?Power outletÌCigarette lightereInstrument panelUCentral locking0Interior lightsOTurn lights / Rear fog lights /
Body control moduleDIAGDiagnostic connectoruABS / Electronic Stability
ControldInterior lights / Brake lightsZBody control moduleSymbolCircuitSTOPBrake lightIBody control module /
Power windows / Heating
and ventilation system / Air
conditioningmLeft heated rear windownRight heated rear windowRWindscreen washerMElectronic immobiliserUHeated seatsFBLCornering lightlHands-free connection&TachographPTOPower take-offjHornÍPreheating / Diesel fuel filterxClimate control fandHeated exterior mirrors