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138Vehicle careVehicle careGeneral Information...................138
Vehicle checks ........................... 139
Bulb replacement .......................147
Electrical system ........................152
Vehicle tools .............................. 156
Wheels and tyres .......................157
Jump starting ............................. 168
Towing ....................................... 169
Appearance care .......................171General 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 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 vehicle in a dry, well ventilated
place. Engage first or reverse gear.
Prevent the vehicle from rolling.
■ Do not apply the parking brake.
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Vehicle care141
When the engine oil level has
dropped to the MIN mark, top-up
engine oil.Caution
Do not allow the engine oil level to drop below the minimum level!
We recommend the use of the same
grade of engine oil that was used at
the last change.
The engine oil level must not exceed the maximum mark MAX on the
dipstick.
Caution
Overfilled engine oil must be
drained or suctioned out.
To prevent spillage when
replenishing the engine oil, we
recommend using a funnel. Ensure funnel is securely located onto the
filler pipe.
A stabilization of the engine oil
consumption will not take place until
the vehicle has been driven several
thousand kilometres. Only then can
the actual degree of consumption be
established.
If consumption exceeds more than
0.5 litres every 1000 km after this
running-in period, consult a
workshop.
Capacities 3 191.
Fit the cap on straight and tighten it.
Engine air filter
Engine air flow indicator
On certain models, an indicator is
located in the engine induction
system and indicates if the air-intake
to the engine is restricted.
Clear=No restrictionRed tell-tale=Restricted
If the red tell-tale is displayed when
the engine is running, consult a
workshop.
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146Vehicle careDiesel fuel filter
Drain diesel fuel filter of residual
water at every engine oil change.
Place a container underneath the
filter housing. Loosen the knurled
screw on the lower part of the filter by approx. one turn, to drain off the
water.
The filter is drained as soon as water-
free diesel fuel emerges. Retighten
the screw.
Check diesel fuel filter at shorter
intervals if the vehicle is subjected to
extreme operating conditions.
Diesel fuel system
bleeding
If the fuel tank has been run dry, it will
be necessary to air vent or bleed the
diesel fuel system.
Refuel then proceed as follows:
With ignition key ■ Switch on the ignition (key to position M) for 5 seconds at a time.
■ Switch off ignition (key to position A) for 3 seconds.
■ Repeat this process multiple times.
■ Start the engine (key to position D)
then switch off (key to position St).
Ignition switch positions 3 114.
With power button ■ Insert the electronic key in the card
reader.
■ Press the Start/Stop button without
pressing any of the pedals.
■ Wait a few minutes before starting engine.
Power button 3 114.If the engine fails to start, seek the
assistance of a workshop.
Starting the engine 3 116.
Wiper blade replacement Wiper blades on the windscreen
Lift the wiper arm, press button to
disengage the wiper blade and
remove.
Attach new wiper blade slightly
angled to the wiper arm and push until
it engages.
Lower wiper arm carefully.
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166Vehicle care
5. Unscrew wheel bolts completelyby turning anticlockwise and wipe
clean with a cloth.
Put wheel bolts somewhere
where the threads will not be
soiled.
6. Change the wheel. Spare wheel 3 166.
7. Screw in the wheel bolts.
8. Lower the vehicle and remove jack.
9. Tighten each of the wheel bolts in
a crosswise sequence using the
wheel wrench. Ensure the wrench
locates securely. The wrench
should turn clockwise to tighten
the bolts. Invert the wrench if
necessary.
Tightening torque is 160 Nm.
10. Replace the wheel cover, ensuring that the valve hole in thewheel cover is aligned with the
tyre valve before installing.Note
If applicable, fit anti-theft bolts
nearest the tyre valve (otherwise it
may not be possible to refit the wheel
cover).
11. Stow the replaced wheel 3 166
and the vehicle tools 3 156.
12. Have the new wheel balanced on the vehicle.
Check the tyre pressure of the
installed tyre 3 192.
Check the wheel bolt torque.
Have the defective tyre renewed or
repaired as soon as possible.
Spare wheel
Some vehicles are equipped with a
tyre repair kit instead of a spare wheel 3 162.
If mounting a spare wheel which is
different from the other wheels, this
wheel might be classified as a
temporary spare wheel and the
corresponding speed limits apply,even though no label indicates this.
Seek the assistance of a workshop to
check the applicable speed limit.Caution
The use of a spare wheel that is smaller than the other wheels or in combination with winter tyres
could affect driveability. Have the defective tyre replaced as soon as
possible.
It may be necessary to jack the
vehicle up to gain access to the spare
wheel on a fully loaded vehicle with a flat rear tyre.
Wheel changing 3 165.