Page 107 of 187

Driving and operating105
■ the ambient temperature is not toolow
■ the climate control system allows an Autostop
■ the self-cleaning function of the diesel particle filter is not active
■ the vehicle has moved since the last Autostop
■ the brake vacuum is sufficient
■ the windscreen wipers are not operating at fast speed
■ reverse gear is not selected
■ heated rear window is not operating
Ambient temperature near to the
freezing point can inhibit an Autostop.
For manual transmission automated
vehicles, an Autostop may be
inhibited until a speed of approx.
6 mph is reached.
New vehicle running-in 3 101.
Battery discharge protection
To ensure reliable engine restarts, several battery discharge protection
features are implemented as part of
the stop-start system.Restart the engine
Manual transmission
The selector lever must be in neutral to enable an automatic restart.
Depress the clutch pedal to restart the
engine.
Manual transmission automated
If the lever is in position N, select
another gear, otherwise release the brake pedal or move the lever to +, –
or R to enable an automatic restart.
When one of the following conditions
occurs during an Autostop, the
engine will need to be restarted
manually using the key.
■ the driver's seat belt is unfastened and the driver's door is opened
■ three minutes have elapsed since the engine was switched off
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop
during the restart may be noticeable.Parking
■ Do not park the vehicle on an easily
ignitable surface. The high
temperature of the exhaust system
could ignite the surface.
■ Always apply parking brake. Apply manual parking brake without
pressing release button. Apply as
firmly as possible on downhill or uphill slopes. Depress the foot
brake at the same time to reduce
operating force.
■ Switch off the engine and ignition. Turn the steering wheel until the
steering wheel lock engages.
■ If the vehicle is on a level surface or
uphill slope, engage first gear. On
an uphill slope, turn the front
wheels away from the kerb.
If the vehicle is on a downhill slope, engage reverse gear. Turn the front
wheels towards the kerb.
■ Lock the vehicle.
Page 114 of 187

112Driving and operatingBrakes
The brake system comprises two
independent brake circuits.
If a brake circuit fails, the vehicle can
still be braked using the other brake
circuit. However, braking effect is
achieved only when the brake pedal
is depressed firmly. Considerably
more force is needed for this. The
braking distance is extended. Seek the assistance of a workshop before
continuing your journey.
When the engine is not running, the
support of the brake servo unit
disappears once the brake pedal has been depressed once or twice.
Braking effect is not reduced, but
braking requires significantly greater
force. It is especially important to bear this in mind when being towed.
Control indicator R 3 74.
Antilock brake system Antilock brake system (ABS)
prevents the wheels from locking.ABS starts to regulate brake pressure as soon as a wheel shows a tendency
to lock. The vehicle remains
steerable, even during hard braking.
ABS control is made apparent
through a pulse in the brake pedal
and the noise of the regulation
process.
For optimum braking, keep the brake
pedal fully depressed throughout the
braking process, despite the fact that
the pedal is pulsating. Do not reduce
the pressure on the pedal.
After starting off the system performs a self-test which may be audible.
Control indicator u 3 75.
Fault9 Warning
If there is a fault in the ABS, the
wheels may be liable to lock due
to braking that is heavier than
normal. The advantages of ABS are no longer available. During
hard braking, the vehicle can nolonger be steered and may
swerve.
Have the cause of the fault remedied
by a workshop.
Parking brake Manual parking brake
Always apply parking brake firmly
without operating the release button,
and apply as firmly as possible on a
downhill or uphill slope.
Page 122 of 187

120Driving and operating
indicator Y illuminates in the Driver
Information Centre 3 79 until the
ignition is switched off.
A slight loss of power and torque can be expected in petrol operation. You
must therefore adapt your driving style (e.g. during overtaking
manoeuvres) and vehicle loads (e.g.
towing loads) accordingly.
Every six months run the petrol tank
down until control indicator §
illuminates and then refuel. This is
necessary to maintain fuel quality as
well as system function necessary for
petrol operation.
Fill the tank completely at regular
intervals to prevent corrosion in the
tank.
Refuelling
Fuel filler flap is located at left rear
side of vehicle.9 Danger
Before refuelling, switch off engine
and any external heaters with
combustion chambers. Switch off
any mobile phones.
Follow the operating and safety
instructions of the filling station
when refuelling.
9 Danger
Fuel is flammable and explosive.
No smoking. No naked flames or
sparks.
If you can smell fuel in your
vehicle, have the cause of this
remedied immediately by a
workshop.
Caution
In case of misfuelling, do not
switch on ignition.
Release the fuel filler flap by pulling
the flap by hand.
Insert key into fuel filler cap and turn
anticlockwise to unlock.
To remove fuel filler cap, rotate
anticlockwise.Caution
To avoid damage, do not attempt
to operate the sliding side door
when the fuel filler flap is open.
Notice
Depending on model, the sliding
side door may be fitted with a safety system that prevents the door from
being opened fully when the fuel
filler flap is open.
Sliding side door 3 23.
Page 123 of 187

Driving and operating121
The fuel filler cap can be retained in
the bracket on the fuel filler flap.
To refuel, fully insert the pump nozzle
and switch it on.
After the automatic cut-off, the fuel tank can be topped up with a
maximum of two doses of fuel.
Caution
Wipe off any overflowing fuel
immediately.
To close, replace fuel filler cap and
turn clockwise.
Insert key into fuel filler cap and turn
clockwise to lock, then remove key.
Close the fuel filler flap.
Natural gas refuelling
Open the fuel filler flap.
9 Warning
Refuel only with a maximum
output pressure of 250 bar. Use
only temperature compensated
filling stations.
The refuelling procedure must be
completed, i.e. the filler neck must be
vented.
The capacity of the natural gas tank depends on outside temperature,
filling pressure and type of refuelling
system.
Close the fuel filler flap after
refuelling.
Terms for " natural gas vehicles "
abroad:GermanErdgasfahrzeugeEnglishNGVs = Natural Gas Vehi‐
clesFrenchVéhicules au gaz naturel –
or – Véhicules GNVItalianMetano auto
Terms for " natural gas " abroad:
Page 128 of 187

126Vehicle care
■ Open the bonnet, close all doorsand lock the vehicle.
■ Disconnect the clamp from the negative terminal of the vehicle
battery. Beware that all systems are not functional, e.g. anti-theft lockingsystem.
Putting back into operation When the vehicle is to be put back into
operation:
■ Connect the clamp to the negative terminal of the vehicle battery.
Activate the electronics of the
power windows.
■ Check tyre pressure.
■ Fill up the washer fluid reservoir.
■ Check the engine oil level.
■ Check the coolant level.
■ Fit the number plates if necessary.End-of-life vehicle
recovery
Information on end-of-life vehicle
recovery centres and the recycling of
end-of-life vehicles is available on our website. Only entrust this work to an
authorised recycling centre.
Natural gas vehicles must be recycled by a service centre authorised for
natural gas vehicles.Vehicle checks
Performing work9 Warning
Only perform engine compartment
checks when the ignition is off.
The cooling fan may start
operating even if the ignition is off.
Page 135 of 187
Vehicle care133
4.Insert new bulb in reflector so that
the locating tab of the bulb aligns
with the reflector recess.
5. Attach connector to bulb.
6. Engage wire clip.
7. Install protective cover.
High beam 1. Remove protective cover.
2. Detach connector from bulb.
3. Disengage wire clip and remove bulb from reflector.4.Insert new bulb in reflector so that
the bulb aligns with the reflector
recess.
5. Engage wire clip and attach connector onto bulb.
6. Install protective cover.
Sidelight 1. Remove protective cover. Withdraw bulb holder from
reflector by turning anticlockwise.2. Remove bulb from socket, insert new bulb.
3. Insert bulb holder in reflector. 4. Rotate clockwise to engage.
5. Install protective cover.
Daytime running light 1. Remove protective cover.
Page 136 of 187
134Vehicle care
2. Withdraw bulb holder fromreflector by turning anticlockwise.
3. Remove bulb from socket, insert new bulb.
4. Insert bulb holder in reflector. 5. Rotate clockwise to engage.
6. Install protective cover.
Front turn signal light 1. Remove protective cover.2. Withdraw bulb holder from reflector by turning anticlockwise.
3. Push bulb into holder slightly, rotate anticlockwise, remove and
renew bulb.
4. Insert bulb holder in reflector.
5. Rotate clockwise to engage.
6. Install protective cover.
Tail lights
1. Remove the three retaining screws.
2. Remove light housing from vehicle.
3. Disengage connector plug from bulb holder.
Page 137 of 187
Vehicle care135
4.Unscrew the four retaining screws
using a screwdriver. Turn bulb
holder for reverse light
anticlockwise and replace bulb.
5. Remove bulb holder and seal from light housing.
6. Push bulb into socket slightly, rotate anticlockwise, remove and
renew bulb.Brake light ( 1)
Turn signal light ( 2)
Tail light ( 3)
Tail light/fog light ( 4)
7. Install seal on bulb holder ensuring it is fitted correctly.
Install bulb holder in light housing
ensuring that it engages correctly.
Tighten the four retaining screws
using a screwdriver.
8. Install reverse light bulb holder and turn clockwise to tighten.
9. Engage connector plug.
10. Insert light housing in body, ensuring correct positioning.
Tighten the three retaining
screws.
Side turn signal lights
Have bulbs replaced by a workshop.
Centre high-mounted
brake light Have bulbs replaced by a workshop.