Page 207 of 279
Driving and operating205
If the vehicle is equipped with an
electronic key system, the fuel filler
flap can only be opened if the vehicle
is unlocked. Depending on the
version, release the fuel filler flap by
pushing the flap or pulling at the right bottom corner.
Petrol and diesel refuellingDepending on the version, place the
key in the lock and unlock the cap.
To open, turn the cap slowly
anticlockwise.The fuel filler cap can be attached to
the hook on the fuel filler flap.
Place the nozzle in straight position to
the filler neck and press with slight
force to insert.
To refuel, switch on pump nozzle.
After the automatic cut-off, the tank
can be topped up by operating the
pump nozzle a maximum of two more times.
Caution
Wipe off any overflowing fuel
immediately.
To close, turn the fuel filler cap
clockwise until it clicks.
Close the flap and allow it to engage.
Fuel filler cap
Only use genuine fuel filler caps.
Diesel-engined vehicles have special fuel filler caps.
Page 209 of 279

Driving and operating207The permissible gross train weight
must not be exceeded. This weight is
specified on the identification plate
3 256.
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 is specified on the
towing equipment identification plate
and in the vehicle documents.
Always aim for the maximum vertical
coupling 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
60 kg , the gross vehicle weight rating
must not be exceeded. If thepermissible rear axle load is
exceeded, a maximum speed of
60 mph applies.
Towing equipment
Depending on version the vehicle can be fitted with a detachable or a fixed
coupling ball bar.
Type ACaution
When operating without a trailer,
remove the coupling ball bar.
Fitting the coupling ball bar
1. Place the key in the lock and
unlock the coupling ball bar. Move
the lever to the rear position.
2. Clean the contact points with a soft clean cloth.
Page 210 of 279
208Driving and operating3. Insert the coupling ball bar in theopening and push firmly up to the
stop.
Secure the coupling ball bar
correctly by moving the lever to
the locked position, shown in the
picture.
4. Lock the coupling ball bar by turning the key. Remove the key
and close the protective flap.
5. Attach the trailer.
6. Fold the socket forward.
7. Connect the trailer plug to the socket.
8. Attach the breakaway stoppingcable to the eye on the carrier.
9 Warning
Towing a trailer is permitted only
when a coupling ball bar is fitted correctly. If the coupling ball bardoes not engage correctly, seekthe assistance of a workshop.
Dismounting coupling ball bar
1. Disconnect the trailer plug.
2. Unfasten the breakaway stopping
cable.
3. Remove the trailer.
4. Open the protective flap and unlock the coupling ball bar with
the key.
5. Move the lever of the coupling ball
bar to the rear position. Remove
the coupling ball bar by pulling it.
Page 214 of 279

212Vehicle careCaution
When transporting the vehicle on
a train or on a recovery vehicle, the
mud flaps might be damaged.
Cold protection covers
In order to prevent the accumulation
of snow at the radiator cooling fan, it is recommended to install removable
protection covers.
The protection covers must be
professionally installed, consult a
workshop.
Caution
The protection covers must be removed when one of the
following conditions occurs:
● The ambient temperature is above 10 °C.
● When the vehicle is towed.
● The vehicle is driven at speeds
above 75 mph.
Vehicle storage
Storage for a long period of timeIf 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 or
reverse gear or set selector lever to P. Prevent the vehicle from
rolling.
● Do not apply the parking brake.● Open the bonnet, close all doors and lock the vehicle.
● Disconnect the clamp from the negative terminal of the vehicle
battery. Note that all systems are
not functional, e.g. anti-theft
alarm system.
Putting back into operation When the vehicle is to be put back into
operation:
● Connect the clamp to the negative terminal of the vehicle
battery. Initialize the power
windows 3 40.
● Check tyre pressure.
● Fill up the washer fluid reservoir.
● Check the engine oil level.
● Check the coolant level.
● Fit the number plate if necessary.
Page 224 of 279
222Vehicle careSidelight / daytime running light
with bulbs
1. Rotate the bulb socket anticlockwise to disengage and
withdraw from the reflector.
2. Remove the bulb from the bulb socket by pulling.
3. Replace and insert the new bulb into the bulb socket.
4. Insert the bulb socket into the light
assembly and turn clockwise.
Sidelight / daytime running light
with LEDs
In case of defective LEDs, have them replaced by a workshop.
LED headlights Daytime running lights are designed
as LEDs and can not be changed.
Have lights repaired by a workshop in case of failure.
Front fog lights
1. Wrap a cloth around the tip of a flat
screwdriver to prevent paint
damage. Insert the screwdriver in
the recess at the edge of the
cover. Release the cover by
levering it out carefully.
Page 225 of 279
Vehicle care223
2. Unscrew and remove the twoscrews and remove the lightassembly to the front.
3. Turn the bulb socket anticlockwise and remove it from
the light assembly.
4. Disengage the plug connector by pulling the retaining lug.
5. Remove and replace the bulb unit
and attach the plug connector.
Note that the bulb and the socket
are one unit and have to be
changed together.
6. Insert the bulb socket into the light
assembly by turning clockwise
and engage.
7. Mount the light assembly by tightening the two screws.
8. Attach and engage the cover.
Front turn lights
1. Rotate the bulb socket anticlockwise to disengage and
withdraw from the reflector.
Page 226 of 279
224Vehicle care2. Slightly press down the bulb, turnit anticlockwise and remove it
from the socket.
3. Replace and insert the new bulb into socket by turning clockwise.
4. Insert the bulb socket into the reflector and turn clockwise.
Tail lights Light assembly in the body
Vehicle with tailgate
1. Unscrew and remove the two screws.
2. Carefully withdraw the tail lightassembly from recess and
remove. Take care that the cable
duct remains in position.
3. Detach the cable from the retainer.4. Press the retaining lug backwards, pull the bulb carrier
and disengage the remaining
retaining lugs.
Page 230 of 279
228Vehicle careFuse extractorA fuse extractor may be located in the
fuse box in the engine compartment.
The extractor has two sides, each
side is designed for a different type of fuses.
Grab the fuse with the fuse extractor
and withdraw the fuse.
Engine compartment fuse
box
The fuse box is in the front left of the
engine compartment.
Disengage the cover and remove it.
No.Circuit16Front fog lights18Right headlight19Left headlight29Windscreen wiper
After having changed defective fuses,
close the fuse box cover and lock it.
If the fuse box cover is not closed
correctly, malfunction may occur.