Driving and the environment
148Authorised Service Centre more frequently than recommended in the Service
Schedule.
If you drive with wet brakes, for example, after crossing areas of water, in
heavy rainfall or even after washing the car, the effect of the brakes is less-
ened as the brake discs are wet or even frozen (in winter): The brakes should
be “dried” by pressing the pedal to restore full braking effect.
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. However, the reduced braking capacity may be
compensated by pressing on the brake pedal a little harder. 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.
•
On steep descents if the brakes are excessively used they will over
heat. Before driving down a long steep gradient, it is advisable to reduce
speed and change to a lower gear (or mo ve the selector lever to a lower gear
if your vehicle has automatic transmission). This makes use of engine
braking and relieves the brakes.
•
Never let the brakes “rub” by 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 function.
•
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 relevant instructions
before purchasing accessories ⇒ page 167, “Modifications”.
•
If a brake circuit fails, the braking distance will be increased consider-
ably. Contact a qualified workshop immediately and avoid unnecessary
journeys.
Exhaust gasses purification 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 181, “Topping up engine oil ”.
– Never tow the vehicle to start it, use jump leads if necessary ⇒page 221.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. In general, the exhaust warning lamp will light
up when any of the described symptoms occur ⇒page 60. 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.
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WARNING (continued)
Driving and the environment155
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
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 ball coupling of the towing bracket is located in the tool
boxThe ball coupling is provided with instructions on fitting and removing the
ball coupling of the towing bracket.
WARNING
The towing bracket ball coupling must be stored securely in the luggage
compartment to prevent them being flung through the vehicle and causing
injury.
Note
•
By law, the ball coupling must be re moved if a trailer is not being towed
and it obscures the number plate.
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 we ight distribution.
Speed
The stability of the vehicle and trailer is reduced with increasing speed. For
this reason it is advisable not to drive at the maximum permissible 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 “s naking” 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 pr event the jerking that can be
caused by the trailer wheel s locking. Select a low gear in good time before
going down a steep descent. This enables you to use the engine braking to
slow down the vehicle.
Heating
At very high temperatures and during prolonged ascents, driving in a low gear
and high engine speed, always monitor the temperature indicator for the
coolant ⇒page 51.
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.
COR_ING_0707 Seite 155 Mittwoch, 1. August 2007 6:25 18
Driving and the environment
156Driving economically and with respect for the
environmentGeneral ObservationsFuel consumption, environmental pollution and wear to the engine, brakes
and tyres depends in large part on your driving style. Fuel consumption may
be reduced from 10 to 15 % by driving defensively and economically. Below
we will give you some suggestions to "alleviate" some of the strain in the
environment and, at the same time, your wallet.
Anticipate the traffic situation well in advance
A vehicle uses most fuel when accelerating. When you anticipate the situa-
tion, you will have to brake less often and, thus, accelerate less. If it is
possible, let the vehicle roll with a gear engaged, for example, if you see a red
light ahead.
Change gear early to save energy
An effective way of saving fuel is to change up quickly through the gears.
Running the engine at high rpm in the lower gears uses an unnecessary
amount of fuel.
Manual gearbox: Change from first to second gear as quickly as possible. We
recommend that, whenever possible, you change to a higher gear upon
reaching 2,000 rpms.
Automatic gearbox: Accelerate slowly and avoid the “kick-down” position.
Avoid driving at high speed
We advise you not to drive at the top speed permitted by the vehicle. Fuel
consumption, exhaust emissions and noise levels all increase very rapidly at
higher speeds. Driving at moderate speeds will help to save fuel. Avoid idling
It is worthwhile switching off the engine when waiting in a traffic jam, at level
crossings or at traffic lights with a long red phase. The fuel saved after only
30 - 40 seconds is greater than the amount of fuel needed to restart the
engine.
The engine takes a very long time to
warm up when it is running at idling
speed. Mechanical wear and pollutant emissions are also especially high
during this initial warm-up phase. It is therefore best to drive off immediately
after starting the engine . Avoid running the engine at high speed.
Periodic maintenance
Periodic maintenance work guarantees that, before beginning a journey, you
will not waste fuel. A well-serviced engine gives you the benefit of improved
fuel efficiency as well as maximum reliability and an enhanced resale value.
A maladjusted engine may mean an increase of 10 % over normal fuel
consumption.
Check the oil level every time you fill the tank. Oil consumption depends to a
great extent on the engine load and engi ne speed. It is quite normal that the
oil consumption of a new engine only reaches its lowest level after a certain
mileage. This means that the oil consumption can only be properly assessed
after about 5,000 km. Depending on your personal driving style, oil consump-
tion can be up to 0.5 litres per 1,000 km.
Avoid short journeys
To reduce the consumption and emission of polluting gases, the engine and
the exhaust filtration systems should reach the optimum service tempera-
ture.
With the engine cold, fuel consumption is proportionally higher. The engine
does not warm up and fuel consumption does not regularise until having
driven some four kilometres. This is the reaso n why we recommend avoiding
short trips wherever possible.
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Cleaning and caring for your vehicle
158Cleaning and caring for your vehicleGeneral notesRegular washing and care help maintain the value of your
vehicle.Regular care
Regular and expert care helps to maintain the value of the vehicle. This may
also be one of the requirements for acknowledging warranty claims in the
event of corrosion or paint defects.
The best way to protect the car against environmental contaminants is to
wash and wax it frequently. The longer substances such as insects, bird drop-
pings, resinous tree sap, road dirt, industrial deposits, tar, soot or road salt
and other aggressive materi als remain on the vehicle, the more damage they
do to the paintwork. High temperatures (for instance in strong sunlight)
further intensify the corrosive effect.
After the period when salt is put on the roads it is important to have the
underside of the vehicle washed thoroughly.
Car care products
Car care products are available from your Authorised Service Centre. Keep the
product instructions until you have used up the product.
WARNING
•
Car care products can be toxic. For this, they must always be kept
closed in their original container. Keep out of children's reach. Failure to
comply could result in poisoning.
•
Always read and observe the instructions and warnings on the package
before using car care products. Improper use could damage your health or your vehicle. The use of certain products may produce noxious vapours;
these should be used in well ventilated areas.
•
Never use fuel, turpentine, engine oil, nail varnish remover or other
volatile fluids. These are toxic and highly flammable. There is a fire / explo-
sion risk.
•
Before you wash your vehicle, or ca rry out any maintenance, switch off
the engine, apply the handbrake firmly and remove the key from the igni-
tion.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 clea ning purposes. This could damage the
paintwork or glass on your vehicle. Soak dirt, mud or dust with plenty of
water.
For the sake of the environment
•
When purchasing car care products, try to select ones which are not
harmful to the environment.
•
Left over car care products should not be disposed of with ordinary house-
hold waste. Observe the disposal information on the package.WARNING (continued)
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Cleaning and caring for your vehicle159
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
Care 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.
Before going through a car wash, be sure to take the usual precautions such
as closing the windows and sunroof. There is nothing to note apart from that.
If the vehicle has special accessories such as spoilers or a roof carrier or two-
way radio aerial, etc., it is advisable to consult the car wash operator.
After the car has been washed, the brakes could hesitate 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.
Caution
Before putting the vehicle in a carwash tunnel, do not tighten the aerial if it is
folded as this may cause damage.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 th e 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. You must “dry” the brakes by applying the brakes care-
fully several times ⇒page 147, “Braking effect and braking
distance”.
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.
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Cleaning and caring for your vehicle
160
Caution•
Never attempt to remove dirt, mud or dust if the surface of the vehicle is
dry. Never use a dry cloth or sponge fo r cleaning purposes. This could scratch
the paintwork or glass on your vehicle.
•
Washing the vehicle in low temperatures: 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. Otherwise there is a risk of malfunc-
tion.For the sake of the environment
In the interests of environmental protection, the car should be washed only
in specially provided wash bays. This prevents toxic, oil-laden waste water
entering the sewerage system. In some districts, washing vehicles anywhere
else may be prohibited.
Note
Do not wash the vehicle in direct sunlight.Washing the car 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 161.
– Never use concentrated jet nozzles or so-called “dirt blasters” ⇒ .
– If possible, avoid sudden braking directly after washing the vehicle. You must “dry” the brakes by applying the brakes care-
fully several times ⇒page 147.
WARNING
•
Never wash tyres with a concentrated jet or cylindrical jet (“rotating
nozzle”). Even at large spraying distanc es and short cleaning times, visible
and invisible damage can occur to the tyres. This may cause an accident.
•
Moisture, ice and salt on the brakes may affect braking efficiency. Risk
of accident.Caution
•
Do not use water hotter than 60
°C. This could damage the car.
•
To avoid damage to the vehicle, maintain a sufficient distance from sensi-
tive materials for example: flexible hoses, plastic, sound proofing, etc. This is
especially important for bumpers painted in the same colour as the vehicle.
The closer the nozzle is to the surface, the greater the wear on the material.
Waxing the car
Regular waxing protects the paintwork.You need to apply wax to your car if water does not form small drops and run
off the paintwork when it is clean.
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Cleaning and caring for your vehicle163
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
•
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 before the metal starts to rust.
WARNING
•
Never wash tyres with a cylindrical jet. Even at large spraying distances
and short cleaning times, visible and invisible damage can occur to the
tyres. This may cause an accident.
•
Moisture, ice and salt on the brakes may affect braking efficiency. Risk
of accident. If possible, avoid sudden braking immediately after washing
the vehicle. You must “dry” the brakes by applying the brakes carefully
several times ⇒ page 147, “Braking effect and braking distance”.
Cleaning alloy wheelsEvery two weeks
– Wash salt and brake dust from alloy wheels.
– Use an acid free detergent to clean the wheels.
Every three months
– Apply a hard wax compound to the wheels.
Alloy wheels require regular attention to preserve their appearance. It is
important to remove road salt and brake dust by washing the wheels at
regular intervals, otherwise the finish will be impaired.
Always use an acid-free detergent for alloy wheels.
Car polish or other abrasive agents should not be used. If the protective
coating is damaged, e.g. by stone impact, the damaged area should be
repaired immediately.
WARNING
•
Never wash tyres with a cylindrical jet. Even at large spraying distances
and short cleaning times, visible and invisible damage can occur to the
tyres. This may cause an accident.
•
Moisture, ice and salt on the brakes may affect braking efficiency. Risk
of accident. If possible, avoid sudden braking immediately after washing
the vehicle. You must “dry” the brakes by applying the brakes carefully
several times ⇒ page 147, “Braking effect and braking distance”.
Underbody sealant
The underside of the vehicle is coated to protect it from corro-
sion and damage.The protective coating could be damage d when driving. We recommend that
the protective coating under the body and on the running gear should be
checked, and reinstated if necessary, before and after the winter season.
We recommend that repair work and addi tional anti-corrosion work is carried
out by your Authorised Service Centre.
COR_ING_0707 Seite 163 Mittwoch, 1. August 2007 6:25 18
Cleaning and caring for your vehicle
164
WARNING
Do not apply underseal or anti-corros ion coatings to the exhaust pipes,
catalytic converter or the heat shield s on the exhaust system. The heat of
the exhaust system or the engine could cause them to ignite! This is a fire
hazard.Cleaning the engine compartment
Take special care when cleaning the engine compartment.Anti-corrosion treatment
The engine compartment and the surface of the power unit are given anti-
corrosion treatment at the factory.
Good corrosion protection is particularl y important in winter when the car is
frequently driven on salted roads. To prevent the salt corroding the vehicle,
the entire engine compartment should be thoroughly cleaned before and
after the salting period.
Your Authorised Service Centre is able to provide the correct cleaning and
preserving products and has the necessary equipment. For this reason, we
recommend having this work performed by them.
The anti-corrosion protection is usually removed if the engine compartment
is cleaned with grease removing solutions, or if you have the engine cleaned.
If this job is carried out, you should ensure that all surfaces, seams, joints and
components in the engine compartmen t are given anti-corrosion treatment
afterwards.
WARNING
•
When working in the engine compartment, always observe the safety
warnings ⇒ page 175.
•
Switch off the engine, apply the parking brake firmly and always
remove the key from the ignition before you open the bonnet.
•
Allow the engine to cool before you clean the engine compartment.
•
Do not clean the underside of vehicle, wheel arches without protecting
your hands and arms. You may cut your self on sharp-edged metal parts.
Failure to comply could result in injury.
•
Moisture, ice and salt on the brakes may affect braking efficiency. Risk
of accident. If possible, avoid sudden braking immediately after washing
the vehicle.
•
Never touch the radiator fan. It is temperature-controlled and could
start automatically, even when the key is removed from the ignition!For the sake of the environment
Fuel, grease and oil deposits could be removed when the engine is washed.
The polluted water must be cleaned in an oil separator. For this reason,
engine washing should be carried out only by a qualified workshop or a suit-
able filling station.Care of the vehicle interiorCleaning plastic parts and the dash panel– Use a clean, damp cloth to clean plastic parts and the dash panel.
– If this does not provide satisfactory results, use a special solvent-free plastic cleaning product.
WARNING (continued)
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