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148Driving and operating
Switching onPress rocker switch m at the upper
end, control indicator m illuminates
white.
Activation
Accelerate to the desired speed and
turn thumb wheel to SET/-, the
current speed is stored and
maintained. Control indicator m
illuminates green. Accelerator pedal
can be released.
Vehicle speed can be increased by depressing the accelerator pedal.
When the accelerator pedal is
released, the previously stored speed is resumed.
Cruise control remains activated
while gearshifting.
Increase speed
With cruise control active, hold thumb wheel turned to RES/+ or briefly turn
to RES/+ repeatedly: speed
increases continuously or in small
increments.
Alternatively accelerate to the desired
speed and store by turning to RES/+.Reduce speed
With cruise control active, hold thumb
wheel turned to SET/- or briefly turn to
SET/- repeatedly: speed decreases
continuously or in small increments.
Deactivation
Press button y, control indicator m
illuminates white. Cruise control is deactivated. The stored speed is
memorised.
Automatic deactivation:
■ vehicle speed below approx. 20 mph,
■ the brake pedal is depressed,
■ the clutch pedal is depressed for a few seconds,
■ selector lever in N,
■ engine speed in a very low range,
■ the Traction Control system or Electronic Stability Control is
operating.
Resume stored speed
Turn thumb wheel to RES/+ at a
speed above 20 mph. The stored
speed will be obtained.Switching off
Press rocker switch m at the lower
end, control indicator m extinguishes.
The stored speed is deleted.
Switching off the ignition also deletes
the stored speed.
Parking assist
The parking assist makes parking
easier by measuring the distance between the vehicle and obstacles,
and giving acoustic signals. It is the
driver, however, who bears full
responsibility for the parking
manoeuvre.
Page 161 of 237

Driving and operating159
Fuel consumption data and CO2
emission data are determined
according to regulation R (EC) No.
715/2007 (in the version respectively
applicable), taking into consideration
the vehicle weight in running order, as specified by the regulation.
The figures are provided only for the
purpose of comparison between
different vehicle variants and must not be taken as a guarantee for the
actual fuel consumption of a
particular vehicle. Additional
equipment may result in slightly
higher results than the stated
consumption and CO 2 figures.
Furthermore, fuel consumption is
dependent on personal driving style
as well as road and traffic conditions.Trailer hitch
General information
Only use towing equipment that has
been approved for your vehicle.
Entrust retrofitting of towing
equipment to a workshop. It may be
necessary to make changes that
affect the cooling system, heat
shields or other equipment.
Fitting of towing equipment could
cover the opening of the towing eye.
If this is the case use the coupling ball
bar for towing. Always keep the
coupling ball bar in the vehicle.
Driving characteristics and
towing tips Before attaching a trailer, lubricate
the coupling ball. However, do not do so if a stabiliser, which acts on the
coupling ball, is being used to reduce
snaking movements.
For trailers with low driving stability
and caravan trailers with a permitted
gross vehicle weight of more than1100 kg the use of a stabiliser is
strongly recommended when driving
above 50 mph.
If the trailer starts snaking, drive more slowly, do not attempt to correct the
steering and brake sharply if
necessary.
When driving downhill, drive in the
same gear as if driving uphill and
drive at a similar speed.
Adjust tyre pressure to the value
specified for full load 3 224.
Trailer towing Trailer loads9 Warning
Vehicles with engine A13DTE:
Use of towing equipment is
permissible for attaching
compatible bicycle carriers only.
Do not use towing equipment for
trailer towing.
Page 166 of 237

164Vehicle careVehicle careGeneral Information...................164
Vehicle checks ........................... 165
Bulb replacement .......................172
Electrical system ........................182
Vehicle tools .............................. 188
Wheels and tyres .......................189
Jump starting ............................. 200
Towing ....................................... 202
Appearance care .......................204General Information
Accessories and vehicle
modifications
We recommend the use of genuine parts and accessories and factory
approved parts specific for your
vehicle type. We cannot assess or
guarantee reliability of other products
- even if they have a regulatory or
otherwise granted approval.
Do not make any modifications to the electrical system, e.g. changes of
electronic control units (chip tuning).Caution
When transporting the vehicle on
a train or on a recovery vehicle, the
mud flaps might be damaged.
Vehicle storage
Storage for a long period of time
If the vehicle is to be stored for several months:
■ Wash and wax the vehicle.
■ Have the wax in the engine compartment and underbody
checked.
■ Clean and preserve the rubber seals.
■ Fill up fuel tank completely.
■ Change the engine oil.
■ Drain the washer fluid reservoir.
■ Check the coolant antifreeze and corrosion protection.
■ Adjust tyre pressure to the value specified for full load.
■ Park the vehicle in a dry, well ventilated place. Engage first orreverse gear or set selector lever to P . Prevent the vehicle from rolling.
■ Do not apply the parking brake.
Page 170 of 237

168Vehicle care
If the cooling system is cold, the
coolant level should be above the
filling line mark. Top up if the level is
low.
9 Warning
Allow the engine to cool before
opening the cap. Carefully open
the cap, relieving the pressure
slowly.
To top up use a 1:1 mixture of
approved coolant concentrate mixed
with clean tap water. If no coolant
concentrate is available, use clean
tap water. Install the cap tightly. Have
the coolant concentration checked
and have the cause of the coolant
loss remedied by a workshop.
Washer fluid
Fill with clean water mixed with a
suitable quantity of washer fluid which
contains antifreeze.
Caution
Only washer fluid with a sufficient
antifreeze concentration provides
protection at low temperatures or
a sudden drop in temperature.
Brakes
In the event of minimum thickness ofthe brake lining, a squealing noise
sounds during braking.
Continued driving is possible but
have the brake lining replaced as
soon as possible.
Once new brake linings are installed,
do not brake unnecessarily hard for
the first few journeys.
Brake fluid9 Warning
Brake fluid is poisonous and
corrosive. Avoid contact with eyes, skin, fabrics and painted surfaces.
Page 171 of 237

Vehicle care169
The brake fluid level must be betweenthe MIN and the MAX marks.
When topping up, ensure maximum cleanliness as contamination of the
brake fluid can lead to brake system
malfunctions. Have the cause of the
loss of brake fluid remedied by a
workshop.
Only use high-performance brake
fluid approved for the vehicle.
Brake and clutch fluid 3 208.
Vehicle battery
Vehicles without stop-start system
will be equipped with a lead acid
battery. Vehicles with stop-start
system will be equipped with an
AGM battery which is not a lead acid
battery.
The vehicle battery is maintenance-
free provided that the driving profile
allows sufficient charging of the
battery. Short-distance-driving and
frequent engine starts can discharge
the battery. Avoid the use of
unnecessary electrical consumers.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
Laying up the vehicle for more than
4 weeks can lead to battery
discharge. Disconnect the clamp from the negative terminal of the vehicle
battery.
Ensure the ignition is switched off
before connecting or disconnecting
the vehicle battery.
The anti-theft alarm siren must be
deactivated as follows: Switch the ignition on then off, disconnect the
vehicle's battery within 15 seconds.
Vehicle battery discharge protection
3 121.
Replacing the vehicle battery Notice
Any deviation from the instructions
given in this paragraph may lead to
a temporary deactivation of the stop-
start system.
When the vehicle battery is being
replaced, please ensure that there
are no open ventilation holes in the
vicinity of the positive terminal. If a
ventilation hole is open in this area, it
Page 180 of 237
178Vehicle care
5.Unlatch the four retaining lugs and
remove the bulb carrier.
6. Remove and replace the bulb.
Tail light and brake light ( 1)
Tail light ( 2)
Turn signal light ( 3)
Version with Light Emitting Diode (LED):
Only brake light ( 1) and turn signal
light ( 2) can be changed.
7. Insert the bulb carrier into the tail light assembly. Connect the
wiring plug. Fit light assembly
onto retaining pins and tighten the securing nuts. Close the cover
and engage.
8. Switch on the ignition, operate and check all lights.
Tail lights in the tailgate frame
1. Open the tailgate and remove the
cover with a screwdriver.
Page 187 of 237
Vehicle care185
No.Circuit22Electrical parking brake23Tyre repair kit24Fuel pump25ABS26Heated rear window27ABS28Interior fan29Cigarette lighter30Air conditioning system31Front power window, left32Front power window, right33Mirror heating34ABS35AirbagInstrument panel fuse box
In left-hand drive vehicles, the fuse
box is behind the storage
compartment in the instrument panel.
Open compartment, compress the
locking tabs, fold compartment down and remove.
Page 192 of 237

190Vehicle care
Tyre pressures differ depending onvarious options. For the correct tyre
pressure value, follow the procedure
below:
1. Identify the engine identifier code.
Engine data 3 215.
2. Identify the respective tyre.
The tyre pressure tables show all possible tyre combinations 3 224.
For the tyres approved for your
vehicle, refer to the EEC Certificate of
Conformity provided with your vehicle or other national registration
documents.
The driver is responsible for correct
adjustment of tyre pressure.9 Warning
If the pressure is too low, this can
result in considerable tyre warm-
up and internal damage, leading to tread separation and even to tyre
blow-out at high speeds.
If the tyre pressure must be reduced
or increased on a vehicle with tyre
pressure monitoring system, switch
off ignition.
Tyre deflation detection system The tyre deflation detection system
continually checks the rotation speed
of all four tyres.
If a tyre loses pressure the control
indicator w illuminates yellow and a
warning message is displayed in the
Driver Information Centre with
Uplevel-Display. Stop immediately
and check tyre pressure.
Control indicator w 3 97.
System initialisation After tyre pressure correction or
wheel change, the system must be
initiated:
1. Apply electrical parking brake.
2. Press the MENU button to select
the Vehicle Information Menu .3. Turn the adjuster wheel to select
Tire Pressure System .
4. Press the SET/CLR button to
select the reset of the system.
On vehicles with Midlevel- Display, make a longer press on
the SET/CLR button to start the
initialisation of the system.
5. On vehicles with Uplevel-Display, the selection is confirmed by a
pop-up indication. Confirm to start
the initialisation of the system.
Selection and indication can be
different between Midlevel-Display
and Uplevel-Display.