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Driving and operating183Rear axle loadWhen 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
100 kg, the gross vehicle weight
rating may be exceeded by 100 kg. If
the permissible rear axle load is
exceeded, a maximum speed of
60 mph applies.
Towing equipmentCaution
When operating without a trailer,
remove the coupling ball bar.
Stowage of coupling ball bar
The coupling ball bar is stowed in a
bag and must be secured in the load
compartment.
Vehicle with spare wheel
The bag with the coupling ball bar is
placed near the spare wheel under
the load floor cover.
Direct the strap through the rim and around the wheel, wrap it around the
coupling ball bar and tighten the strap
to secure the bag.
Vehicles with tyre repair kit
The bag with the coupling ball bar is
placed near the tyre repair kit box
under the load floor cover.
The strap is directed around the
threaded bolt under the tyre repair kit box. Wrap the strap around the
coupling ball bar and tighten the strap
to secure the bag.
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184Driving and operatingVehicles with flat load compartment
floor
The bag with the coupling ball bar is
stowed on the right side of the load
compartment floor.
Direct the strap through the rear right
lashing eye, wrap it twice around the
coupling ball bar and tighten the strap
to secure the bag.
Fitting the coupling ball bar
Disengage and fold down the socket. Remove the sealing plug from the
opening for the coupling ball bar and
stow it.
Checking the tensioning of the
coupling ball bar
● Red marking on rotary knob must
point towards green marking on
coupling ball bar.
● The gap between the rotary knob
and the coupling ball bar must be approx. 6 mm.
● The key must be in position c.
Otherwise, the coupling ball bar must be tensioned before being inserted:
● Unlock coupling ball bar by turning key to position c.
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Driving and operating185
● Pull out rotary knob and turnclockwise as far as it will go.
Inserting the coupling ball bar
Insert the tensioned coupling ball bar
in the opening and push firmly
upwards until it audibly engages.
The rotary handle snaps back into its
original position resting against the
coupling ball bar without a gap.9 Warning
Do not touch rotary handle during
insertion.
Lock the coupling ball bar by turning
the key to position e. Remove the key
and close the protective flap.
Eye for break-away stopping cable
Attach breakaway stopping cable to
eye.
Check that the coupling ball bar is correctly installed
● Green marking on rotary knob must point towards green
marking on coupling ball bar.
● There must be no gap between the rotary handle and the
coupling ball bar.
● The coupling ball bar must be firmly engaged in the opening.
● The coupling ball bar must be locked and the key removed.9Warning
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.
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186Driving and operatingDismounting the coupling ball bar
Open the protective flap and turn the
key to position c to unlock the
coupling ball bar.
Pull out rotary handle and turn
clockwise as far as it will go. Pull out coupling ball bar downwards.
Insert sealing plug in opening. Fold away socket.
Stow and secure the coupling ball bar
as mentioned above.
Page 189 of 263

Vehicle care187Vehicle careGeneral Information...................188
Accessories and vehicle modifications .......................... 188
Vehicle storage ........................188
End-of-life vehicle recovery .....189
Vehicle checks ........................... 189
Performing work ......................189
Bonnet ..................................... 189
Engine oil ................................. 190
Engine coolant ......................... 191
Washer fluid ............................ 192
Brakes ..................................... 193
Brake fluid ............................... 193
Vehicle battery ......................... 193
Diesel fuel system bleeding .....195
Wiper blade replacement ........195
Bulb replacement .......................195
Halogen headlights ..................196
Adaptive forward lighting .........197
Fog lights ................................. 198
Front turn signal lights .............199
Tail lights ................................. 200
Side turn signal lights ..............202
Number plate light ...................202Interior lights ............................ 203
Instrument panel illumination ...203
Electrical system ........................203
Fuses ....................................... 203
Engine compartment fuse box . 204
Instrument panel fuse box .......206
Load compartment fuse box ....207
Vehicle tools .............................. 209
Tools ........................................ 209
Wheels and tyres .......................210
Winter tyres ............................. 210
Tyre designations ....................210
Tyre pressure monitoring
system .................................... 211
Tyre pressure .......................... 214
Tread depth ............................. 215
Changing tyre and wheel size . 216
Wheel covers ........................... 216
Tyre chains .............................. 216
Tyre repair kit .......................... 217
Wheel changing .......................220
Spare wheel ............................ 222
Jump starting ............................. 226
Towing ....................................... 227
Towing the vehicle ...................227
Towing another vehicle ...........228Appearance care .......................229
Exterior care ............................ 229
Interior care ............................. 231
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188Vehicle careGeneral 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 may be damaged.
Vehicle storage
Storage for a long period of time
If the vehicle is to be stored for several months:
● Wash the vehicle. Wax painted parts of the vehicle. Exterior care
3 229.
● 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.
● Close the soft top.
● Cover the soft top to reduce environment influences.
● Disconnect the clamp from the negative terminal of the vehicle
battery. Beware 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. Activate the electronics
of the power windows.
● Check tyre pressure.
● Fill up the washer fluid reservoir.
● Check the engine oil level.
● Check the coolant level.
● Fit the number plate if necessary.
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Vehicle care189End-of-life vehicle recovery
Information on end-of-life vehicle
recovery centres and the recycling of
end-of-life vehicles is available on our website, where legally required. Only
entrust this work to an authorised
recycling centre.Vehicle checks
Performing work9 Warning
Only perform engine compartment
checks when the ignition is off.
The cooling fan may start
operating even if the ignition is off.
9 Danger
The ignition system and Xenon
headlights use extremely high
voltage. Do not touch.
Bonnet
Opening
Pull the release lever and return it to
its original position.
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190Vehicle care
Move the safety catch sideways to theleft vehicle side and open the bonnet.
Secure the bonnet support.
If the bonnet is opened during an
Autostop, the engine will be restarted automatically for safety reasons.
Closing
Before closing the bonnet, press the
support into the holder.
Lower the bonnet and allow it to fall
into the latch from a low height
(20-25 cm). Check that the bonnet is engaged.Caution
Do not press the bonnet into the
latch, to avoid dents.
Engine oil
Check the engine oil level manually
on a regular basis to prevent damage
to the engine. Ensure that the correct specification of oil is used.
Recommended fluids and lubricants
3 234.
The maximum engine oil
consumption is 0.6 litres per 1000 km.
Check with the vehicle on a level
surface. The engine must be at
operating temperature and switched
off for at least five minutes.Caution
It is the owner's responsibility to
maintain the proper level of an
appropriate quality oil in the
engine.
Pull out the dipstick, wipe it clean,
insert it to the stop on the handle, pull
out and read the engine oil level.
Insert dipstick to the stop on the
handle and make half a turn.