
Checking and refilling levels233
Safety First
Controls and equipment
Practical tips
Technical Data
Liquid coolant losses
Any loss of liquid coolant normally indicates a
leak in the cooling system. In
this case the cooling system should be inspected by a specialist garage
without delay. It is not sufficient merely to top up the liquid coolant.
If there are no leaks in the system, a loss of liquid coolant can only occur if
the coolant boils and is forced out of the system as a result of overheating.
Caution
Radiator sealants must not be added to the liquid coolant. Such additives
could seriously impair the function of the cooling system.Topping up the liquid coolant
Be careful when topping up with liquid coolant.– Switch the engine off.
– Wait for the engine to cool down.
– Cover the cap on the expansion tank ⇒page 232, fig. 181 with a
cloth, and carefully unscrew the cap anti-clockwise ⇒.
– Add liquid coolant.
– Screw on the cap tightly.Make sure that the liquid coolant meets the required specifications
⇒page 231, “Liquid coolant”. Do not use a different type of anti-freeze if
anti-freeze G12++ is not available. In this case, use only water and bring the
anti-freeze concentration back up to the correct level as soon as possible.
Always top up with new liquid coolant. Do not fill above the “max” mark. Excess liquid coolant is forced out of the
system through the valve in the filler cap when the engine gets hot.
If a lot of liquid coolant has been lost, wait for the engine to
cool down before
putting in cold coolant. Failure to do so could result in serious engine
damage.
WARNING
•The cooling system is under pressure. Do not unscrew the cap on the
expansion tank when the engine is hot. Failure to comply could result in
burns.•The anti-freeze and liquid coolant can be a health hazard. Therefore,
the anti-freeze should be stored in the original container in a safe place out
of reach of children. Failure to comply could result in poisoning.For the sake of the environment
Drained off coolant should not be used again. Drain off the used coolant into
a suitable container and dispose of it in the proper manner (observe environ-
mental regulations).Radiator fan
The radiator fan can start running spontaneously.The auxiliary fan can continue to run for as long as 10 minutes after stopping
the engine – even after the ignition is switched off. It may also start running
suddenly ⇒ after some while if•stored heat raises the coolant temperature, or•the hot engine compartment is additionally heated up by the sun.
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Checking and refilling levels235
Safety First
Controls and equipment
Practical tips
Technical Data
Changing windscreen wiper blades
If the windscreen wiper blades are in perfect condition, you
will benefit from an improved visibility. Damaged wiper
blades should be replaced immediately.
Removing the wiper blade
– Lift the wiper arm away from the windscreen.
– Slide the retainer catch on the wiper blade in the direction indi-
cated ⇒fig. 183 . Hold onto the wiper blade at the same time.
– Pull the wiper blade out of its mounting on the wiper arm.
Fitting the wiper blade
– Slide back the retainer catch on the new wiper blade. The mounting on the wiper blade should now be visible.
– Fit the new wiper blade into the mounting on the wiper arm ⇒fig. 184 .
– Slide the retainer catch on the wiper blade in direction so that it clicks into place on the wiper arm.
– Fold the wiper arm back down onto the glass.If the windscreen wipers smear , t h e y s h o u l d b e r e p la ce d i f t h e y a r e d a m a ge d ,
or cleaned if they are soiled.
If this does not produce the desired results, the setting angle of the wind-
screen wiper arms might be incorrect. They should be checked by a qualified
workshop and corrected if necessary.
WARNING
Do not drive unless you have good visibility through all windows!•The ignition must not be switched on while the front wiper arms are in
a raised position. The wipers would return to their park position and
damage the paintwork on the bonnet.
Fig. 183 Removing the
wiper bladeFig. 184 Fitting the wiper
blade
AAAB
AC
AD
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Checking and refilling levels237
Safety First
Controls and equipment
Practical tips
Technical Data
Removing the wiper blade
– Lift the wiper arm away from the glass ⇒ page 236, fig. 185.
– Slide the blade adapter in the di rection of the arrow and remove
the blade ⇒ page 236, fig. 185 .
Fitting the wiper blade
– With one hand, hold the top end of the wiper arm.
– Place the blade as shown in the ⇒ page 236, fig. 186 and slide
the adapter along until it engages.Check the condition of the wiper blad e regularly. Change as required.
If the windscreen wiper scrapes, i t s h o u l d b e r e p la ce d i f d a m a ge d , o r c l ea n e d
if soiled.
If this is not sufficient, refer to a qualified workshop.
WARNING
Do not drive unless you have good visibility through all windows!•Clean the windscreen wiper blades and all windows regularly.•The wiper blades should be changed once or twice a year.Caution
•A damaged or dirty window wiper could scratch the rear window.•Never use fuel, nail varnish remover, paint thinner or similar products to
clean the window.•Never move the windscreen wiper by hand. This could cause damage.
Brake fluidChecking the brake fluid level
The brake fluid level can be checked at a glance.The brake fluid level must be between the “Min” and “Max” ⇒fig. 187 mark-
ings.
The fluid level may drop slightly after a period of time due to the automatic
compensation for brake pad wear. This is quite normal.
H owe ve r, if th e le ve l goes d own not icea bly i n a short time, or drops below the
“Min” mark, there may be a leak in the brake system. If the fluid level in the
reservoir is too low, this will be indicated by the brake warning lamp
⇒ page 70 and ⇒page 77. If this should happen, take the car to a qualified
workshop immediately and have the brake system inspected.
Fig. 187 Engine compart-
ment: markings on brake
fluid reservoir
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Checking and refilling levels
238Topping up and changing the brake fluid
It is best to have the brake fluid changed by a professional.Brake fluid absorbs damp. Therefore, in the course of time it will absorb water
from the ambient air. If the water content in the brake fluid is too high, the
brake system could corrode. In addition, the boiling point of the brake fluid
will be considerably reduced. This could adversely affect the braking ability in
certain circumstances.
For this reason the brake fluid must be changed periodically.
Your vehicle's Service Schedule will tell you when the brake fluid has to be
renewed.
We recommend you have the brake fluid changed as part of a regular Inspec-
tion Service at your garage. They are familiar with the procedure and have the
necessary special tools and spare parts as well as the proper facilities for
disposing of the old fluid.
Use only the genuine brake fluid specified by the factory Specialist garages
know that the brake fluid -DOT 4- is factory approved. The brake fluid must be
new.
WARNING
•Therefore, it must always be kept cl osed in its original container. Keep
out of the reach of children. Failure to comply could result in poisoning.•Heavy use of the brakes may cause a vapour lock if the brake fluid is left
in the system for too long. This would seriously affect the efficiency of the
brakes and the safety of the car, leading to the risk of accident.Caution
Please note that brake fluid will attack the paintwork on contact.
For the sake of the environment
If the fluid has to be drained out of the brake system, use an appropriate
container to catch the used brake fluid and dispose of it in the proper
manner.BatteryGeneral notes
All work on batteries requires specialist knowledge.The battery is virtually maintenance-free and is checked in the Inspection
Services.
We recommend that you replace a battery once it is older than 5 years.
Disconnecting the battery
If the battery is disconnected, some of the vehicle's functions will become
inoperative (e.g. electric windows). These functions will require resetting
after the battery is reconnected. For this reason, the battery should only be
disconnected from the vehicle's electrical system when absolutely necessary.
Long periods of non-use
The battery will gradually lose its charge because certain electrical equip-
ment continues to draw current even when the ignition is off. If you park the
vehicle for long periods of time in winter you should take the battery out of
the vehicle and keep it in a frost-proof room. Store the battery in a place
where it cannot “freeze up” and become damaged. At warm outside temper-
atures it is sufficient to disconnect the negative terminal of the battery. Even
when the battery is not connected you should charge it from time to time.
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Wheels and tyres
242Wheels and tyresWheelsGeneral notesAvoiding damage
– If you have to drive over a kerb or similar obstacle, drive very
slowly and as near as possible at a right angle to the kerb.
– Keep grease, oil and fuel off the tyres.
– Inspect the tyres regularly for damage (cuts, cracks or blisters, etc.). Remove any foreign objects embedded in the treads.
Storing tyres
– Mark tyres when you remove them to indicate the direction of rotation. This ensures you will be able to install them correctly
when you replace them.
– When removed, the wheels and/or tyres should be stored in a cool, dry and preferably dark location.
– Store tyres in a vertical position if they are not fitted on wheel rims.New tyres
New tyres have to be run-in.
The tread depth of new tyres may vary, according to the type and make of tyre
and the tread pattern. Concealed damage
Damage to tyres and rims is often not readily visible. If you notice unusual
vibrations or the car pulling to one side, this may indicate that one of the tyres
is damaged. The tyres should be checked immediately by an Authorised
Service Centre.
Tyres with directional tread pattern
An arrow on the tyre sidewall indicates the direction of rotation on tyres with
directional tread. Always observe the direction of rotation indicated when
fitting the wheel. This guarantees optimum grip and helps to avoid aqua-
planing, excessive noise and wear.
WARNING
•New tyres do not have maximum grip in the first 500 km. Drive particu-
larly carefully to avoid risk of accident.•Never drive with damaged tyres. This may cause an accident.•If you notice unusual vibration or if the vehicle pulls to one side when
driving, stop the vehicle immediately and check the tyres for damage.
Checking tyre pressure
The correct tyre pressure can be seen on the sticker on the
inside of the tank flap.1. Read the required tyre inflation pressure from the sticker. The values refer to Summer tyres. For Winter tyres, you must add 0.2
bar to the values given on the sticker.
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Technical Data295
Safety First
Controls and equipment
Practical tips
Technical Data
Te c h n i c a l D a t aChecking fluid levelsFrom time to time, the levels of the different fluids in the
vehicle must be checked. Never fill with incorrect fluids,
otherwise serious damage to the engine may be caused.Fig. 246 Diagram for the location of the various elements
Vehicle battery
Engine oil filler cap
Brake fluid reservoir
Engine oil dipstick.
Coolant expansion tank
Windscreen washer fluid container
Hydraulic fluid reservoir for power steering
The checking and refilling of service fluids are carried out on the components
mentioned above. These operations are described in the ⇒page 227.
Overview
Further explanations, instructions and restrictions on the technical data are
contained as of ⇒page 291.Note
The layout of parts may vary depending on the engine.A1A2A3A4A5A6A7
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Index
308Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Checking oil level . . . . . . . . . . . . . . . . . . . . 230
Consumption . . . . . . . . . . . . . . . . . . . . . . . . 230
Oil pressure too low . . . . . . . . . . . . . . . . . . . 78
Oil properties . . . . . . . . . . . . . . . . . . . . . . . . 229
Oil sensor defective . . . . . . . . . . . . . . . . . . . 80
Topping up . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Environmental friendliness . . . . . . . . . . . . 198
Environmental tip Avoiding pollution . . . . . . . . . . . . . . . . . . . . 223
Environmentally friendly driving . . . . . . . . . . . 197
Exhaust gas purification system . . . . . . . . . . . 196
Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 214FFabric trim cleaning . . . . . . . . . . . . . . . . . . . . . 218
Fastening rings . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Filling the tank Releasing the tank flap manually . . . . . . . 223
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Description . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Front drink holders . . . . . . . . . . . . . . . . . . . . . . 153
Front passenger airbag deactivation . . . . . . . . . 44
Frontal airbags Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Fuel
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Fuel level low . . . . . . . . . . . . . . . . . . . . . . . . . 80
Instantaneous fuel consumption . . . . . . . . . 85
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Fuel range . . . . . . . . . . . . . . . . . . . . . . . . . . . 73, 85
Fuel tank opening the fuel tank flap . . . . . . . . . . . . . 222
Fuel: save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Fuse Assignment . . . . . . . . . . . . . . . . . . . . . . . . . 263
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
GGear display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Gear shift pattern . . . . . . . . . . . . . . . . . . . . . . . 181
General overview of the engine compartment 295
Glove compartment . . . . . . . . . . . . . . . . . . . . . . 157Cool box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
GRA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178HHandbrake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Hazard warning lights . . . . . . . . . . . . . . . . . . . . 122
Head restraint Rear seat . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 Head restraints
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Removing and fitting . . . . . . . . . . . . . . . . . 141
head restraints, correct adjustment . . . . . . . . . 13 In-use and non-use positions . . . . . . . . . . . 14
Headlight range control . . . . . . . . . . . . . . . . . . 120 Dynamic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Adaptive headlights . . . . . . . . . . . . . . . . . . 122
Automatic headlight control . . . . . . . . . . . 117
Automatic headlight control photo sensors . . .117
Coming home function . . . . . . . . . . . . . . . . 119
Driving abroad . . . . . . . . . . . . . . . . . . . . . . . 199
Front fog lights . . . . . . . . . . . . . . . . . . . . . . 118
Headlight range control . . . . . . . . . . . . . . . 120
Headlight washer system . . . . . . . . . . . . . . 131
Leaving home function . . . . . . . . . . . . . . . . 119
Heated Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Heated rear window . . . . . . . . . . . . . . . . . . . . . 127
Heated seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
High pressure cleaners . . . . . . . . . . . . . . . . . . . 213
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
IIdentification number . . . . . . . . . . . . . . . . . . . . 292
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