The essentials
● Screw the compressor tyre inflator into the
valve.
● Repeat the inflation process.
● If the indicated pressure still cannot be
reached, the tyre is too badly damaged. Stop
and request assistance from an authorised
technician.
● Disconnect the air compressor. Unscrew
the tyre inflator tube from the tyre valve.
● When the tyre pressure is between 2.5 and
2.0 bars, continue driving without exceeding
80 km/h (50 mph).
● Check the pressure again after 10 minutes
››› page 188
.
››› in TMS (Tyre Mobility System)* on
page 186
››› page 186 With a spare wheel
Fig. 42
Fig. 43
An adapter for the anti-theft wheel bolts*
Towline anchorage
Box spanner for wheel bolts*
Jack*
Wire hook for pulling off the wheel cov-
ers*/wheel bolt cap clip.
1 2
3
4
5 ●
Take out the spare wheel and the tools that
are located under the floor panel in the lug-
gage compartment.
● Take out the wheel cover or the bolt caps.
● Loosen the bolts with the box spanner (1
turn to the left).
● Mount the jack on the support points de-
signed for this purpose on the strut
››› Fig. 43 .
● Rai
se the vehicle, turning the jack until it is
slightly lifted off the ground.
● Unscrew the bolts completely and remove
the punctured wheel.
● Put the spare wheel in place. Screw on the
bolts and tighten them loosely with the box
spanner.
● Lower the vehicle with the jack. Finish tight-
ening the bolts with the box spanner.
››› in Preparation work on page 183
››› page 183 27
Technical specifications
Advice
Operation
Safety
The essentials
Driving
Some tips on how to help you reduce pollu-
tion while saving money are listed below.
Active cylinder management (ACT ®
)
Depending on the equipment, the vehicle
may have active cylinder management
(ACT ®
).
The active cylinder management (ACT ®
) may
automatically deactivate some of the engine
cylinders if the driving situation does not re-
quire too much power. When it is switched
off, no fuel is injected into these cylinders,
hence total fuel consumption may be re-
duced.
Drive anticipating the traffic situation
A vehicle uses most fuel when accelerating.
When you anticipate situations, you 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
ahe a
d. The braking effect achieved in this
way helps to reduce the wear of brakes and
tyres; emissions and fuel consumption are
reduced to zero (disconnection due to iner-
tia).
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:
shift up from first to second
gear as soon as possible. We recommend
that, whenever possible, you change to a
higher gear upon reaching 2000 rpm. Follow
the “recommended gear” indication that ap-
pears on the instrument panel ››› page 64.
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 in-
crease 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 cross-
ings 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 re-
start the engine.
The engine takes a long time to warm up
when it is idling. Mechanical wear and pollu-
tant emissions are also especially high dur-
ing 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 con- sume more than the required amount of fuel.
A well-serviced engine gives you the benefit
of
improved fuel efficiency as well as maxi-
mum reliability and an enhanced resale val-
ue.
A badly serviced engine can consume up to
10% more fuel than necessary.
Avoid short journeys
To reduce the consumption and emission of
polluting exhaust gases, the engine and the
exhaust gas filtration systems should reach
the optimum operating temperature.
With the en
gine cold, fuel consumption is
proportionally higher. The engine does not
warm up and fuel consumption does not nor-
malise until having driven approximately four
kilometres (2.5 miles). This is why we recom-
mend avoiding short trips whenever possi-
ble.
Maintain the correct tyre pressures
Bear in mind that keeping the tyres at an ad-
equate pressure saves fuel. If the tyre pres-
sure is just one bar (14.5 psi/100 kPa) too
low, fuel consumption can increase by as
much as 5%. Due to the greater rolling resist-
ance, under-inflation also increases tyre wear
wear and impairs handling.
The tyre pressures should always be checked
when the tyres are cold.
»
137
Technical specifications
Advice
Operation
Safety
The essentials
Wheels
Concealed damage
Damage to tyres and rims is often not readily
visible. If you notice unusual vibrations or the
vehicle pulling to one side, this may indicate
that one of the tyres is damaged. They
should be checked immediately by a Techni-
cal Service.
Tyres with directional tread pattern
An arrow on the tyre sidewall indicates the di-
rection of rotation on tyres with directional
tread. Always observe the direction of rota-
tion indicated when fitting the wheel. This
guarantees optimum grip and helps to avoid
aquaplaning, excessive noise and wear. WARNING
● New tyres do not have maximum grip dur-
ing the first 500 km. Drive particularly care-
fully to avoid possible accidents.
● Never drive with damaged tyres. This may
cause an accident.
● If you notice unusual vibrations or if the ve-
hicle 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 fuel tank flap. 1. Read the required tyre inflation pressure
from the sticker. The values refer to Sum-
mer tyres.
2. The tyre pressures should only be checked when the tyres are cold. The slightly raised
pressures of warm tyres must not be re-
duced.
3. Adjust the tyre pressure to the load you are carrying.
Tyre pressure
The correct tyre pressure is especially impor-
tant at high speeds. The pressure should
therefore be checked at least once a month
and before starting a journey. WARNING
A tyre can easily burst if the pressure is too
low, causing an accident!
● At continuously high speeds, a tyre with in-
sufficient pressure flexes more. In this way it
becomes too hot, and this can cause tread
separation and tyre blow-out. Always observe
the recommended tyre pressures.
● If the tyre pressure is too low or too high,
the tyres will wear prematurely and the vehi-
cle will not handle well. Risk of accident! For the sake of the environment
Under-inflated tyres will increase fuel con-
sumption. Tyre useful life
Fig. 154
Tyre tread wear indicators. Fig. 155
Diagram for changing wheels The useful life of tyres is dependent on tyre
pressure, driving style and fitting.
Wear indicators
The original tyres on your vehicle have
1.6 mm high “tread wear indicators”
››› Fig. 154 , running across the tread.
»
177Technical specifications
Advice
Operation
Safety
The essentials