The distribution of the weight is very poor if your vehicle is unladen and the trail-
er is laden. Maintain a particularly low speed if you cannot avoid driving with this
combination.
Tyre pressure
Correct the tyre inflation pressure on your vehicle for a “full load” » page 173,
Service life of tyres .
Trailer load
The permissible trailer load must not be exceeded under any circumstan- ces » page 199 , Technical data .
The trailer loads specified apply only to altitudes up to 1 000 metres above mean
sea level.
The engine output falls as altitude increases, as does the ability to climb. There-
fore, for every additional 1000 m in height (or part), the maximum permissible
towed weight must be reduced by 10 %.
The towed weight comprises the actual weights of the (loaded) towing vehicleand the (loaded) trailer.
The trailer and drawbar load information on the type plate of the towing equip-
ment are merely test data for the towing equipment. The vehicle-specific values
are detailed in the vehicle documents.WARNING■ Do not exceed the maximum permissible axle and drawbar load and the
maximum permissible total or towed weight of the vehicle and the trailer –
there is the risk of an accident and serious injury.■
Slipping loads can significantly affect the stability and safety of the vehicle/
trailer combination – there is the risk of an accident and serious injury.
Towing a trailer
First read and observe the introductory information and safety warn-
ings
on page 120.
Exterior mirrors
You have to have additional exterior mirrors fitted if you are not able to see the
traffic behind the trailer with the standard rear-view mirrors. The national legal requirements must be observed.
Headlights
The front of the vehicle can be lifted when a trailer is being towed and the head- lights can dazzle other road users.
Adjust the headlight setting on the headlight range control » page 42, Headlight
beam adjustment .
Driving speed
For safety reasons, do not drive faster than 80 km/h when towing a trailer.
Immediately reduce your speed as soon as even the slightest swaying of the trail- er is detected. Never attempt to stop the trailer from “swaying” by accelerating.
Brakes
Apply the brakes in good time! If the trailer is fitted with a trailer brake, apply the
brakes gently at first, then brake firmly. This will avoid brake jolts resulting from
the trailer wheels locking.
On downhill sections shift down a gear in good time to also use the engine as a
brake.
Engine overheating
The speed must be reduced immediately if the needle for the coolant tempera-
ture gauge moves into the right-hand area or the red area of the scale.
Stop and switch off the engine if the warning light
in the instrument cluster
starts to flash. Wait a few minutes and check the level of coolant » page 166,
Checking the coolant level .
The following guidelines must be observed » page 22,
Coolant .
The coolant temperature can be reduced by switching on the heating.WARNING■ Adapt your speed to the conditions of the road surface and to the traffic sit-
uation.■
Improper or incorrectly connected electric cables can energise the trailer and
cause functional faults to the vehicle's entire electrical system as well as acci-
dents and severe injuries.
■
Work on the electrical system must only be carried out by specialist garages.
■
Never directly connect the trailer's electrical system with the electrical con-
nections for the tail lights or other current sources.
121Towing a trailer
WARNINGObserve the following instructions for handling the airbag system.■It is prohibited to manipulate individual parts of the airbag system, as this
might result in the airbag being deployed.■
Never install any airbag parts into the vehicle that have been removed from
old cars or have been recycled.
■
Never install damaged airbag parts in the vehicle. The airbags may then not
be deployed properly or even at all in the event of an accident.
■
No modifications of any kind must be made to parts of the airbag system.
WARNING■ A change to the vehicle's wheel suspension, including the use of non-ap-
proved wheels and tire combinations, can alter the functioning of the airbag system - risk of accident and fatal injury!■
Never make any changes to the front bumper or the bodywork.
Washing your car
Introduction
This chapter contains information on the following subjects:
Washing by hand
149
Automatic car wash systems
150
Washing with a high-pressure cleaner
150
The best way to protect your vehicle against harmful environmental influences is frequent washing.
How often the vehicle should be washed depends on factors such as: › Frequency of use.
› Parking situation (garage, under trees etc.).
› Season.
› Weather conditions.
› Environmental influences.
The longer insect residues, bird droppings, tree sap, road and industrial dust, tar,
soot particles, road salt and other aggressive deposits remain adhering to the
paintwork of your vehicle, the more detrimental their destructive effect can be.
High temperatures, such as those caused by intensive sun's rays, accentuate this
caustic effect.
It is essential to also thoroughly clean the underside of the vehicle at the end of
the winter.WARNING■ When washing your vehicle in the winter: Water and ice in the braking sys-
tem can affect the braking efficiency – risk of accident!■
Only wash the vehicle when the ignition is switched off – risk of accident!
CAUTION
Do not wash your vehicle in bright sunlight – risk of paint damage.
For the sake of the environment
Only wash the vehicle at washing bays intended for this purpose.
Washing by hand
First read and observe the introductory information and safety warn-
ings
on page 149.
Soak the dirt with plenty of water and rinse as well as possible.
Clean the vehicle with a soft sponge, a washing glove or a washing brush . Work
from the top to the bottom - starting with the roof.
Only use a car shampoo for stubborn dirt.
Wash out the sponge or washing glove thoroughly at short intervals.
Clean wheels, door sills and similar parts last. Use a second sponge for such
areas.
Give the vehicle a good rinse after washing it and dry it off using a chamois leath- er.
149Car care
Full wheel trimFirst read and observe the introductory information and safety warn-
ings
on page 172.
Pulling off
›
Hook the clamp found in the vehicle tool kit into the reinforced edge of the wheel trim.
›
Push the wheel wrench through the clamp, support on the tyre and pull off the
wheel trim.
Fitting
›
Press the wheel trim onto the wheel rim at the designated valve opening.
›
Then press the trim into the wheel rim until its entire circumference locks cor- rectly in place.
CAUTION
■ Only apply hand pressure, do not hit the full wheel trim! Avoid heavy impacts
when the trim has not yet been inserted into the wheel rim. This could cause
damage to the guide and centring elements of the trim.■
Make sure that the anti-theft wheel bolt is fitted in the bore near the
valve » page 183 , Securing wheels against theft .
■
If wheel trims are retrofitted it must be ensured that an adequate flow of air is
assured to cool the brake system.
Wheel bolts
Fig. 139
Remove the capFirst read and observe the introductory information and safety warn-
ings on page 172.
Pulling off
›
Push the tool » page 180 onto the cap until the inner lugs of the tool are posi-
tioned on the cap collar » Fig. 139.
›
Remove the cap.
Fitting
›
Push the caps onto the wheel bolts up to the stop.
The wheel bolt caps are housed in a plastic box in the spare wheel or in the stor-
age space for the spare wheel.
Hubcaps
Fig. 140
Pull off the wheel trim cap on
light alloy wheels
First read and observe the introductory information and safety warn-
ings on page 172.
Pulling off
›
Carefully remove the wheel trim cap using the wire tool from the vehicle tool
kit » Fig. 140 .
177Wheels