
206Trailer towing
Make sure the ball joint is clean and undamaged
–Check the locking pin A
, release pin B, shaft section C and
knob D ⇒ fig. 164 on the ball joint to make sure they are clean
and undamaged.
The spring mechanism inside the ball joint must be in the ready
position
– Check that the red marking A
⇒ fig. 165 on the knob is inside
the black zone marked on the ball joint.
– Check that the locking pin B
is inside the holes in the shaft
section of the ball joint.
– Check that the knob protrudes visibly from the ball joint, so that
there is a clear gap C
between the knob and the ball joint.
The ball joint can only be installed if the internal spring mechanism is in the
ready position.
Cont ⇒ page 206, Fitting the ball joint (step 3). Fitting the ball joint (step 3)
Fig. 166 Removable tow-
ing bracket: Setting the
spring mechanism to the
"ready" position
Fig. 167 Removable tow-
ing bracket: Inserting the
ball joint
Setting the spring mechanism to the ready position (if required)
– Insert the key 1
⇒ fig. 166 in the lock on the knob and turn it
towards the red marking.

207
Trailer towing
– Pull out the knob in direction A
, hold and turn in direction Buntil the locking pin 2 engages and the release pin 3 moves
out visibly ⇒ .
Inserting the ball joint
– With the spring mechanism in the ready position, insert the ball
joint into the mounting fixture and push it upwards ⇒ fig. 167
in the direction indicated (arrow) ⇒
. It should lock into posi-
tion automatically. You should now clearly hear it click into
place.
– Lock the ball joint by turning the key to the green marking.
– Remove the key.
Cont ⇒ page 207, Fitting the ball joint (step 4).
WARNING
● If it is not possible to set the spring mechanism to the ready position
as described above, do not use the ball joint. Please contact a qualified
workshop.
● To avoid injury, keep your hands away from the knob or cover piece
when inserting the ball joint in the mounting fixture. Otherwise, you
could be injured.
Fitting the ball joint (step 4)
Fig. 168 Removable tow-
ing bracket: Safety check
Fig. 169 Rear bumper:
Pulling down the power
socket
Safety check
– Check that the green marking A
⇒ fig. 168 on the knob is in-
side the black zone marked on the ball joint.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

208Trailer towing
–Check that the knob is directly against the ball joint, so that
there is no gap between the knob and the ball joint -arrow-.
– Check that the ball joint is locked and the key is removed so
that the knob cannot be pulled out ⇒
.
– Check that the ball joint fits tightly in the mounting fixture (try
moving it about to check).
Towing socket
– To plug in the electrical connection for the trailer, pull down the
socket below the bumper ⇒ fig. 169.
If the safety check is not satisfactory, the ball joint must be fitted again
properly.
WARNING
To avoid accidents, the ball joint must meet all the safety requirements
listed in the safety check. The towing bracket must not be used if any one
of these requirements is not met. If this is the case, you should contact a
qualified workshop.
Removing the ball joint
Fig. 170 Removable tow-
ing bracket: Removing
the ball joint
Fig. 171 Rear bumper:
fitting the cover piece
– Insert the key in the lock 1
⇒ fig. 170 on the knob.
– Unlock the ball joint by turning the key to the red marking.

209
Trailer towing
– Take hold of the ball joint and pull out the knob in direction A
.
– Keep hold of the knob and turn it as far as it will go in direction
B
.
– Release the knob. The spring mechanism will remain in the
ready position ⇒
.
– Pull the ball joint down out of the mounting fixture 1
⇒ fig. 171. The cover piece will cover the mounting fixture auto-
matically 2.
– Put away the ball joint attachment under the floor panel in the
luggage compartment.
– Move the socket back up to its original position.
WARNING
● To avoid injury, keep your hands away from the locking pin and the
release pin when releasing the locking mechanism.
● Make sure that the cover piece is properly engaged on the mounting
fixture on the vehicle. Otherwise the ball joint may fail to engage secure-
ly if dirt accumulates in the mounting fixture.
Fitting a towing bracket*
It is possible to fit a towing bracket to the rear of the vehicle.
Fig. 172 Attachment
points for towing bracket
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

213
Vehicle maintenance and cleaning
CAUTION
● Never remove dirt, mud or dust if the vehicle surface is dry. Never use a
dry cloth or sponge for cleaning purposes. This could scratch the paintwork
or glass on your vehicle.
● Washing the vehicle in low temperatures: when washing the vehicle
with a hose, do not direct water into the lock cylinders or the gaps around
the doors, tailgate, or sunroof. Risk of freezing.
For the sake of the environment
To protect environment, the vehicle should be washed only in specially pro-
vided wash bays. This prevents toxic, oil-laden waste water entering the
sewerage system. In some places, washing vehicles outside wash bays is
prohibited.
Note
Do not wash the vehicle in direct sunlight.
Washing the vehicle with a high pressure cleaner
Be particularly careful when using a high pressure cleaner!
– Always observe the instructions for the high-pressure cleaner,
particularly those concerning the pressure and the spraying
distance.
– Increase the spraying distance for soft materials and painted
bumpers.
– Do not use a high pressure cleaner to remove ice or snow from
windows ⇒ page 214.
– Never use concentrated jet nozzles (“rotating jets”) ⇒
. –
After washing, avoid sudden and sharp braking. “Dry” the
brakes by braking several times ⇒ page 196.
WARNING
● Never wash tyres with a concentrated jet (“rotating nozzle”). Even at
large spraying distances and short cleaning times, visible and invisible
damage can occur to the tyres. This may cause an accident.
● Water, ice and salt on the brakes can reduce braking efficiency. Risk
of accident.
CAUTION
● Do not use water hotter than 60 °C. This could damage the vehicle.
● To avoid damage to the vehicle, keep a sufficient distance from sensitive
materials such as flexible hoses, plastic, soundproofing material, etc. This
is also important for bumpers painted in the colour of the bodywork. The
closer the nozzle is to the surface, the greater the wear on the material.
Vehicle paint maintenance
Regular waxing protects the paintwork. You need to apply wax to your vehicle if water does not form small drops
and run off the paintwork when it is clean.
Good quality hard wax products are available at your Authorised Service
Centre.
Regular wax applications help to protect the paintwork from environmental
contaminants ⇒ page 211. It is also effective in protecting against minor
scratches.
Even if a wax solution is used regularly in the vehicle washing tunnel, it is
advisable to protect the paint with a hard wax coating at least twice a year.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

215
Vehicle maintenance and cleaning
CAUTION
● Never use warm or hot water to remove snow and ice from windows and
mirrors. This could cause the glass to crack!
● The heating element for the rear window is located on the inner side of
the window. To prevent damage, do not put stickers on the heating ele-
ments inside the window.
Cleaning windscreen wiper blades
Clean wiper blades improve visibility.
1. Use a soft cloth to remove dust and dirt from the windscreen wiper blades.
2. Use window cleaner to clean the windscreen wiper blades. Use a sponge or a cloth to remove stubborn dirt.
Rubber seals maintenance
If rubber seals are well looked after, they will not freeze so
quickly. 1. Use a soft cloth to remove dust and dirt from the rubber seals.
2. Apply a specialist care product to the rubber seals.
The rubber strips on the doors, windows, bonnet and tailgate will remain
pliable and last longer if they are treated with a suitable care product (for
example silicone spray). Caring for rubber seals will also prevent premature ageing and leaks. The
doors will be easier to open. If rubber seals are well looked after, they will
not freeze so quickly in winter.
Door lock cylinders
The door lock cylinders can freeze up in winter.
To de-ice the lock cylinders you should only use spray with lubricating and
anti-corrosive properties.
Cleaning chrome parts
1. Clean chrome parts with a damp cloth.
2. Polish chrome parts with a soft, dry cloth. If this does not provide satisfying results, use a specialist chrome cleaning
product. Chrome cleaning products will remove stains from the surface.
CAUTION
To prevent scratching chrome surfaces:
● Never use an abrasive cleaning product on chrome.
● Do not clean or polish chrome parts in a sandy or dusty environment.
Steel wheel rims
– Clean steel wheel rims regularly using a separate sponge.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

222Checking and refilling levels
Checking and refilling levels
Refuelling
The tank flap is released manually. The tank holds approxi-
mately 70 litres.
Fig. 174 Fuel tank flap
with tank cap attached
The flap that covers the tank cap is unlocked and locked automati-
cally by the central locking.
Unscrewing the tank cap
– Press the right side of the flap to open it.
– Unscrew the fuel tank cap anti-clockwise.
– Hook the cap onto the support fitted to the open tank flap
⇒ fig. 174. Closing the tank cap
–
Screw the tank cap clockwise into the filler opening until it you
hear it click into position.
– Close the tank flap.
The tank flap is at the rear of the vehicle on the right.
If the automatic filler nozzle is operated correctly, it will switch itself off as
soon as the tank is “full”. Never attempt to fill beyond this point, as this will
fill the expansion chamber. Fuel may leak out if ambient conditions are
warm.
The correct fuel grade for your vehicle is given on a sticker on the inside of
the fuel tank flap. Here you will find further information on fuel.
Releasing the fuel tank flap manually*
If the central locking system fails, the fuel tank flap can be opened manually
as follows:
● Open the tailgate
● Remove the cover from the right side trim in the luggage compartment.
● Insert a hand and pull the locking device back
● Open the cap and take out the plug.

225
Checking and refilling levels
Winter driving
Diesel can thicken in winter.
Winter-grade diesel
When using summer-grade diesel fuel, difficulties may be experienced at
sub-zero temperatures because the fuel thickens due to wax separation.
Therefore, winter-grade diesel fuel is available in some countries during the
cold months. It can be used at temperatures as low as -22 °C.
In countries with different climatic conditions the diesel fuel generally sold
has different temperature characteristics. Check with an Authorised Service
Centre or filling stations in the country concerned regarding the type of die-
sel fuels available.
Filter pre-heater
Your vehicle is fitted with a fuel filter glow plug system, making it well
equipped for operation in winter. This ensures that the fuel system remains
operational to approx. -24 °C, provided you use winter-grade diesel which is
safe to -15 °C.
However, if the fuel has waxed to such an extent that the engine will not
start at temperatures of under -24 °C, simply place the vehicle in a warm
place for a while.
CAUTION
Do not mix fuel additives (thinners or similar products) with diesel fuel. Bonnet
Releasing the bonnet
The bonnet is released from inside the vehicle.
Fig. 175 Detail of foot-
well area on driver side:
lever for unlocking the
bonnet.
– To release the bonnet, pull the lever under the dash panel
⇒ fig. 175 in the direction indicated (arrow).
The bonnet springs out of its lock.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications