Page 57 of 245
Seats, restraints55Three-point seat belt
Fastening seat belt
Withdraw the belt from the retractor,
guide it untwisted across the body
and insert the latch plate into the
buckle. Tighten the lap belt regularly
whilst driving by pulling the shoulder
belt.
Seat belt reminder 3 96.
Loose or bulky clothing prevents the
belt from fitting snugly. Do not place
objects such as handbags or mobile
phones between the belt and your body.
9 Warning
The belt must not rest against hard
or fragile objects in the pockets of
your clothing.
Height adjustment
1. Pull belt out slightly.
2. Press button.
3. Adjust height and engage.
Page 108 of 245
106Instruments and controls
Select menu items via the menus and
using the Infotainment system
buttons. The OK button is used to
select the highlighted item or confirm
a command.
To exit a menu, press the right or left
arrow button until Return or Main
appear and select.
Selecting with the multifunction
control
Turn the multifunction control to
highlight menu items or commands
and to select function areas.
Press the multifunction control to
select the highlighted item or confirm
a command.
To exit a menu, turn the multifunction control until Return or Main appear
and select.
Selecting with the left adjuster wheel
on the steering wheel
Turn to select a menu item.
Press the adjuster wheel to select the
highlighted item or confirm a
command.
Function areas
For each function area there is a main
page (Main), which is selected at the
top edge of the display (not with
Infotainment system CD 30 or the
Mobile Phone Portal):
■ Audio,
■ Navigation,
■ Telephone,
■ Trip computer.
Page 154 of 245

152Driving and operatingCaution
Use of fuel that does not comply toEN 228 or E DIN 51626-1 or
equivalent can lead to deposits or
engine damage and may affect
your warranty.
Caution
Use of fuel with too low an octane
rating could lead to uncontrolled combustion and engine damage.
Fuel for diesel engines
Only use diesel fuel that complies
with EN 590.
In countries outside the European
Union use Euro-Diesel fuel with a
sulfur concentration below 50 ppm.
Caution
Use of fuel that does not comply to EN 590 or similar can lead to
engine powerloss, increased wear
or engine damage and may affect
your warranty.
Do not use marine diesel oils, heating
oils, Aquazole and similar diesel-
water emulsions. Diesel fuels must
not be diluted with fuels for petrol
engines.
Refuelling
9 Danger
Before refuelling, switch off engine
and any external heaters with
combustion chambers (identified
by sticker on fuel filler flap). Switch off any mobile phones.
Follow the operating and safety
instructions of the filling station
when refuelling.
9 Danger
Fuel is flammable and explosive.
No smoking. No naked flames or
sparks.
If you can smell fuel in your
vehicle, have the cause of this
remedied immediately by an
authorized dealer.
Caution
In case of misfuelling, do not
switch on ignition.
Page 185 of 245

Vehicle care183
Fuse assignments inconjunction with loadcompartment fuse box version ANo.Circuit1ABS2ABS3Interior fan climate control
system4Interior fan, heating, air condi‐
tioning system5Radiator fan6Radiator fan7Central locking system8Windscreen washer system,
tailgate9Heated rear window, heated
exterior mirror10Diagnostics plug11InstrumentsNo.Circuit12Mobile telephone, Infotainment
system, display13Courtesy light14Windscreen wiper15Windscreen wiper16Horn, ABS, brake light switch,
air conditioning system17Diesel fuel filter or air condi‐
tioning system18Starter19–20Horn21Engine electronics22Engine electronics23Headlight range adjustment24Fuel pump25–26Engine electronicsNo.Circuit27Heating, air conditioning system28–29Power steering30Engine electronics31Rear window wiper32Brake light switch33Headlight range adjustment,
light switch, clutch switch,
instrument, driver's door
module34Control unit, steering column
module35Infotainment system36Cigarette lighter, front power
outlet
Page 186 of 245

184Vehicle care
Fuse assignments inconjunction with load
compartment fuse box version BNo.Circuit1ABS2ABS3Interior fan electronic climate control4Interior fan heating and air
conditioning system5Radiator fan6Radiator fan7Windscreen washer system8Horn9Headlight washer system10–11–12–13Fog lightNo.Circuit14Windscreen wiper15Windscreen wiper16Control module electronics,
Open&Start system, ABS,
brake light switch, TwinTop17Diesel fuel filter heating18Starter19Transmission electronics20Air conditioning system21Engine electronics22Engine electronics23Adaptive forward lighting, head‐
light range adjustment24Fuel pump25Transmission electronics26Engine electronics27Power steering28Transmission electronicsNo.Circuit29Transmission electronics30Engine electronics31Adaptive forward fighting, head‐ light range adjustment32Brake system, air conditioning
system, clutch switch33Adaptive forward lighting, head‐
light range adjustment, light
switch34Control unit, steering column
module35Infotainment system36Mobile telephone, Infotainment
system, display