Intelligent technology181
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
On braking sharply on slippery ground, this system helps to keep the vehicle
under control, as the wheels do not lock.
However, ABS will not necessarily guar
antee shorter braking distances in all
conditions. The braking distance could ev en be longer if you brake on gravel
or on fresh snow covering a slippery surface.
WARNING
Try to always adapt the speed of the vehicle to weather, road and traffic
conditions. Do not let the extra safety afforded by the system tempt you
into taking any risks when driving. Risk of accident.•
The anti-lock brake system cannot de fy the laws of motion. Slippery
and wet roads are dangerous even with ABS! If you notice that the ABS has
been activated, you should reduce speed immediately to suit the road and
traffic conditions.
•
The ABS cannot reduce the risk of accident if, for example, you are
driving with an unsuitable load or too close to the preceding vehicle.
•
Modifications to the vehicle or work carried out incorrectly (e. g. to the
engine, the brake system, running gear or any components affecting the
wheels and tyres) could affect the effi ciency of the ABS, EDL, ESP and TCS
and lessen their efficiency.
•
The effectiveness of ABS is also determined by the tyres fitted
⇒ page 225.
ABS warning lamp
The warning lamp monitors the ABS.The warning lamp
should light up for a few seconds when the ignition is
switched on. It goes out again after th e system has run through an automatic
test sequence. There is a fault in the ABS if:
•
The ABS warning lamp
does not light up when the ignition is switched
on.
•
The warning lamp does not go out again after a few seconds.
•
The warning lamp lights up when the vehicle is moving.
The vehicle can still be braked in the normal way (except that the ABS control
function is out of action). Please take the vehicle to a qualified workshop as
soon as possible.
If a fault occurs in the ABS, the ESP warning lamp will also light up.
42)
Brake system fault
If the ABS warning lamp
lights up together with the brake warning lamp
, this indicates not only a fault in the ABS function, but also a possible fault
in the brake system ⇒.
At the same time, a text message or the necessary operations may appear on
the instrument panel.
WARNING
Special care must be taken when work ing on the engine or on components
in the engine compartment.•
It is important that you read and observe the corresponding warnings
before working in the engine compartment ⇒page 209.
•
If the brake warning lamp
should light up together with the ABS
warning lamp
, stop the vehicle immediately and check the brake fluid
level in the reservoir ⇒page 221. If the fluid level has dropped below the
“MIN” mark you must not drive on. Ri sk of accident. You should obtain
professional assistance.
•
If the brake fluid level is correct, the fault in the brake system may have
been caused by a failure of the ABS control function. This could cause the
42)Optional equipment
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Intelligent technology
182rear wheels to lock quickly when you brake. This could cause the tail of the
vehicle to skid sideways. Drive careful ly to the nearest qualified workshop
and have the fault corrected.Electronic differential lock (EDL)
The electronic differential lock helps prevent the loss of trac-
tion caused if one of the driven wheels starts spinning.The electronic differential lock (EDL) only works when the engine is running.
EDL helps the vehicle to start moving, accelerate and climb a gradient in slip-
pery conditions where this may otherwise be difficult or even impossible.
It uses the ABS sensors to monitor the speed of the driven wheels.
At speeds of up to approximately 80 km/h, it is able to balance out differ-
ences in the speed of the driven wheel s of approximately 100 rpm caused by
a slippery road surface on one side of the vehicle. It does this by braking the
wheel which has lost traction and distributing more driving force to the other
driven wheel via the differential.
To prevent the disc brake of the braked wheel from overheating, the EDL cuts
out automatically if subjected to excessive loads. The car remains operational
and will behave in the same way as a car without EDL. For this reason, the
driver is not informed that the EDL has been switched off.
The EDL will switch on again automatically when the brake has cooled down.
WARNING
Try to always adapt the speed of the vehicle to weather, road and traffic
conditions. Do not let the extra safety afforded by the system tempt you
into taking any risks when driving. Risk of accident.
•
When accelerating on a slippery surface, for example on ice and snow,
press the accelerator carefully. Despite EDL, the driven wheels may other-
wise start to spin. This could impair the car's stability.
•
Always adapt your driving style to su it road conditions and the traffic
situation.WARNING
Modifications to the vehicle or work carried out incorrectly (e. g. to the
engine, the brake system, running gear or any components affecting the
wheels and tyres) could affect the efficiency of the ABS, EDL, ESP and TCS
and lessen their efficiency.Electronic stabilisation programme (ESP)
The electronic stabilisation programme helps to reduce the
danger of skidding.The electronic stabilisation programme (ESP) consists of ABS, EDL and TCS
and only works when the engine is running.
The ESP should generally be left switched on at all times. Only when the
necessary drive can not be obtained should the ESP be disconnected.
For example:•
when driving with snow chains,
•
when driving in deep snow or on loose surfaces,
•
when rocking the vehicle backwards and forwards to free it from mud, for
example.
WARNING (continued)
WARNING (continued)
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Intelligent technology
184Power steeringPower steering does not work if the en gine is not running or if the power
steering system has developed a fault. In this case the steering wheel is very
hard to turn.
Caution
Do not keep the steering wheel in the full-lock position for longer than
15 seconds when the engine is runni ng. This could cause damage to the
power steering system.Four-wheel drive*
In vehicles with four-wheel drive, the engine power is distrib-
uted to all four wheelsThe four-wheel drive system is fully automatic and does not require interven-
tion by the driver. The engine power is permanently distributed to all four
wheels. The engine power is distri buted automatically to both axles
according to the road conditions and how you drive.
Winter tyres
Thanks to its four-wheel drive, your car will have plenty of traction in winter
conditions, even with the standard tyres. Nevertheless, we still recommend
that, in keeping with cars with front or rear wheel drive, winter tyres or all-
season tyres should be fitted on all four wheels when winter road conditions
are expected, mainly because this will give a better braking response.
Snow chains
On roads where snow chains are mandatory, they must be fitted to the front
wheels of cars with four-wheel drive. Replacing tyres
In vehicles with four-wheel drive, all
four tyres should have the same amount
of wear. All four wheels must have the same rolling circumference.
WARNING
Never drive too fast on icy, slippery or wet surfaces. You could lose control
of your vehicle if you drive too fast. This may result in serious injury.•
Therefore, it is essential that you adjust your speed to suit the road and
traffic conditions. Do not let the extra safety afforded by four-wheel drive
tempt you into taking any risks when driving.
•
The four-wheel drive gives the vehicle good acceleration even in winter.
When braking, a four-wheel drive vehicle handles in the same way as a
front drive vehicle.
•
On wet roads the front wheels may start to “aquaplane” and lose
contact with the road if the car is driven too fast. If this should happen,
there will be no sudden increase in engine speed to warn the driver, as with
a front-wheel drive car.
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Driving and the environment
186If you drive with wet brakes, for example after driving through water, after
heavy rainfall or after washing the car, the braking effect will be reduced as
the brake discs will be wet, or possibly frozen (in winter): the brakes must be
“dried” through careful braking.
WARNING
Longer braking distances and faults in the brake system increase the risk
of accidents.•
New brake pads must be run in and do not have the correct friction
during the first 200 km. The slightly reduced braking effect can be compen-
sated for by increasing pressure on the brake pedal. This also applies when
new brake pads are fitted.
•
If brakes are wet or frozen, or if you are driving on roads which have
been gritted with salt, braking power may set in later than normal.
•
When driving downhill, the brakes wo rk hard and get hot very quickly.
Before driving down a long steep gradient, it is advisable to reduce speed
and change to a lower gear (or move the selector lever to a lower gear if
your vehicle has automatic transmission). In this way you will make use of
the engine braking effect and relieve the load on the brakes.
•
Never let the brakes “rub” by only applying light pressure. Continuous
braking will cause the brakes to overheat and will increase the braking
distance. Apply and then release the brakes alternately.
•
Never let the vehicle coast with the engine switched off. The braking
distance is increased considerably as the brake servo does not work.
•
Very heavy use of the brakes may cause a vapour lock if the brake fluid
is left in the system for too long. This impairs the braking effect.
•
Non-standard or damaged front spoilers could restrict the airflow to the
brakes and cause them to overheat. Observe the notes ⇒page 202 before
buying accessories.
•
If a brake circuit fails, the braking distance will be increased consider-
ably. Contact a qualified workshop immediately and avoid unnecessary
journeys.
Exhaust gas emission control systemCatalytic converter*To conserve the useful life of the catalytic converter
– Always use unleaded petrol.
– Do not run the fuel tank dry.
– For engine oil changes, do not replenish with too much engine oil ⇒page 215, “Topping up engine oil ”.
– Never tow the vehicle to start it, use jump leads if necessary ⇒page 249.If you notice misfiring, uneven running or loss of power when the vehicle is
moving, reduce speed immediately and have the vehicle inspected at the
nearest qualified workshop. These symptoms are communicated by the
exhaust gas warning lamp ⇒page 70. If this happens, unburnt fuel can enter
the exhaust system and escape into the environment. The catalytic converter
can also be damaged by overheating.
WARNING
The catalytic converter reaches very high temperatures! Fire hazard!•
Never park where the catalytic convert er could come into contact with
dry grass or inflammable materials under the vehicle.
•
Do not apply additional underseal or anti-corrosion coatings to the
exhaust pipes, catalytic converter or the heat shields on the exhaust
system, because the heat from the engine could ignite them.
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Driving and the environment189
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
Tyre pressure
Set tyre pressure to the maximum permitted pressure shown on the sticker on
the inside of the tank flap. Set the tyre pressure of the trailer tyres in accord-
ance with the trailer manufacturer's recommendations.
Exterior mirrors
Check whether you can see enough of the road behind the trailer with the
standard mirrors. If this is not the case you should have additional mirrors
fitted. Both exterior mirrors should
be mounted on hinged extension
brackets. Adjust the mirrors to give sufficient vision to the rear.
Headlight adjustment
If towing a trailer the dipped light may dazzle other drivers. Use the headlight
range control to lower the cone of light. If you do not have headlight range
control, have the headlights adjusted by a qualified dealership.
WARNING
•
Never transport people in a trailer. This could result in fatal accidents.
•
To avoid dazzling other drivers, adjust the dipped beam according to
the load. If not, an accident may occur.Note
•
Towing a trailer places additional demands on the vehicle. We recom-
mend additional services between the normal inspection intervals if the
vehicle is used frequently for towing a trailer.
•
Find out whether special regulations apply to towing a trailer in your
country.
Ball coupling of towing bracket
The removable ball coupling of the towing bracket is stored
with the tools on board behind the right-hand side trim of the
luggage compartment.It is necessary to first tense the towing bracket removing the ball
coupling.
Remove the towing bracket from the luggage compartment
– Open the lock by turning the key ⇒fig. 135 clockwise.
– Take out the wheel completely in the direction of the arrow and turn clockwise to the maximum.
– Release the wheel. The towing bracket is pretensed.
– Remove the towing bracket.
Fig. 135 Location of
towing bracketA1
A2
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Driving and the environment
190
Storing towing bracket in the luggage compartment
– First tension the towing bracket.
– Place the towing bracket in its casing on the right-hand side of the luggage compartment. The bracket engages and the tension
is released ⇒ .
– Check that it is correctly fitted.The ball coupling is provided with in structions on fitting and removing the
ball coupling of the towing bracket.
If the ball coupling is fitted it s possible to store the cover of the tow-bar in a
plastic bag next to the tools.
WARNING
The towing bracket ball coupling must be stored securely to prevent it
being flung through the vehicle and causing injury.•
When the pretensed towing bracket is being fitted, there is a risk of
injury in the event that the wheel goes back on itself.Note
By law, the ball coupling must be remo ved if a trailer is not being towed and
it obscures the number plate.•
When placing the towing bracket in the casing check that it is no longer
tensed and securely fastened.
Driving tips
Driving with a trailer always requires extra care.Weight distribution
The weight distribution of a loaded trailer with an unladen vehicle is very
unfavourable. However, if this cannot be avoided, drive extra slowly to allow
for the unbalanced weight distribution.
Speed
The stability of the car and trailer is reduced with increasing speed. For this
reason it is advisable not to drive at the maximum permissible top speed in
unfavourable road, weather or wind conditions. This applies especially when
driving downhill.
You should always reduce speed immediately if the trailer shows the slightest
sign of snaking . Never try to stop the “snaking” by increasing speed.
Always brake in good time. If the trailer has an overrun brake, apply the
brakes gently at first and then firmly. This will prevent the jerking that can be
caused by the trailer wheels locking. Select a low gear (in both manual and
automatic gearboxes) in good time before going down a steep hill. This
enables you to use the engine braking effect to slow down the vehicle.
Overheating
At very high temperatures and during prolonged ascents, driving in a low gear
and high engine speed, always moni tor the temperature indicator for the
coolant.
Electronic Stabilisation Program
Do not switch off the ESP when towing a trailer. The ESP makes it easier to
stabilise if the trailer starts to snake.
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Cleaning and caring for your vehicle
194Care of the vehicle exteriorAutomatic car washesThe paint is so durable that the car can normally be washed without problems
in an automatic car wash. However, the effect on the paint depends to a large
extent on the design of the car wash, the brushes used, the filtering of the
wash water and the type of detergents and wax solutions used, etc.
After washing, the brakes may be slow to respond, as the brake discs and
pads will be wet, or even frozen in winter. “Dry” the brakes by braking several
times.
WARNING
Moisture, ice and salt on the brakes may affect braking efficiency. Risk of
accident.Washing by handWashing the vehicle
– First soften the dirt with plenty of water and rinse off.
– Clean the vehicle with a soft sponge, a glove or a brush. Start on the roof and work your way down. Use only light pressure.
– Rinse the sponge or glove as much as possible.
– Special car shampoo should only be used for very stubborn dirt.
– Clean the wheels, sill panels etc. last using a different sponge or glove. – Rinse the vehicle thoroughly with water.
– Dry the surface of the vehicle gently using a chamois leather.
–If it is cold
, dry the rubber seals and the surfaces they touch with
a cloth to prevent them freezing. Apply silicone spray to the
rubber seals.
After cleaning the vehicle
– If possible, avoid sudden braking directly after washing the vehicle. “Dry” the brakes by braking several times.
WARNING
•
The ignition must always be switched off before the vehicle is washed.
•
Protect your hands and arms from cuts on sharp metal edges when
cleaning the underbody, the inside of the wheel housings etc. Risk of
injury.
•
Moisture, ice and salt on the brakes may affect braking efficiency. Risk
of accident.Caution
•
Never attempt to remove dirt, mud or dust if the surface of the vehicle 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 cold weather: if the vehicle is rinsed with a hose,
do not direct the water into the lock cylinders or the gaps around the doors,
luggage compartment, or bonnet. This could cause them to freeze. Otherwise
there is a risk of malfunction.
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Cleaning and caring for your vehicle197
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
•
The heating element for the rear window is located on the inner side of the
window. To prevent damage, do not put stickers over the heating elements on
the inside of the window.
Cleaning windscreen wiper bladesClean wiper blades are essential for clear vision.
1. Use a soft cloth to remove dust and dirt from the windscreen wiper blades.
2. Use window cleanser to clean the windscreen wiper blades. Use a sponge or a cloth to remove stubborn stains.Care of rubber seals
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 weather strips on the doors, wind ows, bonnet and rear lid 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 parts1. 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 and coatings from the
surface.
Caution
To prevent scratching chrome surfaces:•
Never use an abrasive care product on chrome.
•
Do not clean or polish chrome parts in a sandy or dusty environment.
Steel wheels– Clean steel wheels regularly using a separate sponge.Use an industrial cleanser to remove brake dust. Any damage to the paint on
steel wheels should be repaired be fore the metal starts to rust.
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