82Instruments and controlsEngine coolant
temperature
W illuminates red.
Illuminates when the engine is running
If W illuminates (possibly in
combination with control indicator
C ), stop vehicle and switch off
engine.Caution
Coolant temperature too high.
Check coolant level 3 138.
If there is sufficient coolant, consult a workshop.
Preheating
! illuminates yellow.
Preheating is activated.Only
activates when outside temperature is low.
Diesel particle filter
8
Not used.
Diesel particle filter 3 80, 3 115.
Tyre pressure monitoring
system
w illuminates or flashes.
Illuminates
Tyre pressure loss. Stop immediately and check tyre pressure.
Control indicator w illuminates
together with C 3 80 and a
corresponding message appears in
the Driver Information Centre when a
puncture or severely under-inflated
tyre is detected.
Flashes
Fault in system. After a delay the
control indicator illuminates
continuously. Consult a workshop.
Control indicator w illuminates
together with A 3 80 and a
corresponding message appears inthe Driver Information Centre when a tyre without a pressure sensor ismounted (e.g. spare wheel).
Tyre pressure monitoring system
3 157.
Engine oil pressure
I illuminates red.
Illuminates briefly when the ignition is switched on.
Illuminates when the engine is runningCaution
Engine lubrication may be
interrupted. This may result in
damage to the engine and/or
locking of the drive wheels.
1. Depress clutch.
2. Select neutral gear, set selector lever to N.
Vehicle care155Vehicle tools
Tools
The jack, wheel wrench, adapters (for
spare wheel removal), hub cap hook
and towing eye are contained in a
unit, stowed under the front seat.
Vehicles with Rear-wheel drive: A hydraulic jack and a set of extension
pieces for use with the jack are also
included.
To access this unit, slide the seat fully forwards and fold down the backrest.
Tyre repair kit 3 161.
Wheel changing 3 164.
Spare wheel 3 166.
156Vehicle careWheels and tyres
Tyre condition, wheel condition
Drive over edges slowly and at right
angles if possible. Driving over sharp
edges can cause tyre and wheel
damage. Do not trap tyres on the kerb when parking.
Regularly check the wheels for
damage. Seek the assistance of a
workshop in the event of damage or
unusual wear.
Tyres Factory-fitted tyres are matched to
the chassis and offer optimum driving
comfort and safety.
Winter tyres Winter tyres improve driving safety attemperatures below 7 °C and shouldtherefore be fitted on all wheels.
In accordance with country-specific
regulations, affix the maximum speed
sticker in the driver's field of view.Tyre designations
E.g. 215/65 R 16 C 109 R215=Tyre width, mm65=Cross-section ratio (tyre height
to tyre width), %R=Belt type:RadialRF=Type:RunFlat16=Wheel diameter, inchesC=Cargo or commercial use88=Load index e.g. 109 is
equivalent to approx. 1030 kgR=Speed code letter
Speed code letter:
Q=up to 100 mphS=up to 112 mphT=up to 118 mphH=up to 130 mphV=up to 150 mphW=up to 168 mph
Tyre pressure
Check the pressure of cold tyres at
least every 14 days and before any
long journey. Do not forget the spare
wheel. This also applies to vehicles
with tyre pressure monitoring system.
Tyre pressures 3 198. Always inflate
tyres to the pressures shown on the
label on the driver's door frame.
The tyre pressure data refers to cold
tyres. It applies to summer and winter tyres.
Always inflate the spare tyre to the
pressure specified for full load.
Incorrect tyre pressures will impair
safety, vehicle handling, comfort and
fuel economy and will increase tyre
wear.
Tyre pressures differ depending on
various options. For the correct tyre
pressure value, follow the procedure
below:
1. Identify the engine identifier code.
Engine data 3 182.
2. Identify the respective tyre.
The tyre pressure tables show all possible tyre combinations 3 198.
For the tyres approved for your
vehicle, refer to the EEC Certificate of
Conformity provided with your vehicle or other national registration
documents.
Vehicle care157
The driver is responsible for correct
adjustment of tyre pressure.9 Warning
If the pressure is too low, this can
result in considerable tyre warm-
up and internal damage, leading to tread separation and even to tyre
blow-out at high speeds.
Rear-wheel drive, with twin rear
wheels When inflating the outer tyre, the
inflation tube should be passed
between the two wheels.
Tyre pressure monitoring
system
The Tyre Pressure Monitoring
System (TPMS) uses radio and
sensor technology to check tyre
pressure levels.
Caution
Tyre pressure monitoring system
warns only about low tyre pressure condition and does not replace
regular tyre maintenance by the
driver.
All wheels must be equipped with pressure sensors and the tyres must
have the prescribed pressure.
Notice
In countries where the tyre pressure
monitoring system is legally
required, the use of wheels without
pressure sensors will invalidate the
vehicle type approval.
The TPMS sensors monitor the air
pressure in the tyres and transmit tyre pressure readings to a receiver
located in the vehicle.
Each tyre, including the spare, should
be checked monthly when cold and
inflated to the inflation pressure
recommended on the tyre pressure
label.
Tyre pressures in display
The current tyre pressures can be
shown in the Driver Information
Centre 3 84.
With the vehicle stationary, press
button on end of wiper lever
repeatedly until the tyre pressure
menu is displayed.
158Vehicle care
Low tyre pressure condition
A detected low tyre pressure
condition is indicated by illumination
of control indicator w 3 82 and a
corresponding message appears in
the Driver Information Centre.
If w illuminates, stop as soon as
possible and inflate the tyres as
recommended 3 198.
After inflating, driving may be
required to update the tyre pressure
values in the Driver Information
Centre. During this time w may
illuminate.
If w illuminates at lower temperatures
and extinguishes after some driving,
this could be an indicator for getting low pressure. Check tyre pressure.
If the tyre pressure must be reduced
or increased, switch off ignition.
Only mount wheels with pressure
sensors, otherwise the tyre pressure
will not be displayed and w flashes for
several seconds then illuminates continuously together with control
indicator A 3 80 and a
corresponding message appears in
the Driver Information Centre.
A spare wheel or temporary spare
wheel is not equipped with pressure
sensors. TPMS is not operational for these wheels. For the further three
wheels, TPMS remains operational.
Control indicator w and the
corresponding message appears at
each ignition cycle until the tyres are
inflated to the correct tyre pressure.
Driver Information Centre 3 84.
Vehicle messages 3 85.Puncture
A puncture or severely under-inflated
tyre is indicated by illumination of
control indicator w together with C
3 80 and a corresponding message
appears in the Driver Information
Centre.
Tyre pressure 3 198, Tyre repair kit
3 161, Spare wheel 3 166, Wheel
changing 3 164.
Temperature dependency Tyre pressure depends on the
temperature of the tyre. During
driving, tyre temperature and
pressure increase. Therefore it is important to check tyre pressure with
cold tyres.
Vehicle care159
Relearn function
After changing the wheels, TPMS
needs to recalculate.
With the vehicle stationary, select the tyre pressure menu in the Driver
Information Centre by pressing button
on end of wiper lever. Press and hold button for approx. 3 seconds to
initialise recalculation. A
corresponding message appears in
the Driver Information Centre.
Several minutes of driving may be
required to complete the relearn
process.
If problems occur during the relearn
process, a warning message is
displayed in the Driver Information
Centre.
Driver Information Centre 3 84.
Vehicle messages 3 85.
General information The use of commercially available
liquid tyre repair kits can impair the
function of the system. Factory-
approved tyre repair kits can be used.
Tyre repair kit 3 161.
External high-power radio equipment
could disrupt the TPMS.
Each time the tyres are replaced,
TPMS sensors must be dismounted
and serviced by a workshop.
Fault The TPMS will not function properly if
one or more of the sensors are
missing or inoperable. When the
system detects a malfunction, w
flashes for several seconds and then
illuminates. Additionally a
corresponding message appears in
the Driver Information Centre.Control indicator w and the
corresponding message appear at
each ignition cycle until the problem
is corrected.
Some of the conditions that can
cause these to appear are:
■ One of the tyres has been replaced
with the spare tyre which does not
have a TPMS sensor.
■ The TPMS sensor relearn process was not completed successfully.
Control indicator w and the
corresponding message should
extinguish after successfully
completing the sensor relearn
process.
■ One or more TPMS sensors are missing or damaged. Control
indicator w and the corresponding
message should extinguish when the TPMS sensors are installed and
the sensor relearn process is
performed successfully. Consult a
workshop for service.
■ Replacement tyres or wheels do not match the original equipment
tyres or wheels. Tyres and wheels
Vehicle care161
If the wheel covers and tyres used are
not factory approved, the tyres must
not have a rim protection ridge.
Wheel covers must not impair brake
cooling.9 Warning
Use of unsuitable tyres or wheel
covers could lead to sudden
pressure loss and thereby
accidents.
Tyre chains
Tyre chains are only permitted on the
drive wheels.
On vehicles with twin rear wheels,
tyre chains are only permitted on the
outer wheels.
Always use fine mesh chains that add no more than 15 mm to the tyre tread
and the inboard sides (including chain lock).9 Warning
Damage may lead to tyre blowout.
Wheel covers on steel wheels may
come into contact with parts of the
chains. In such cases, remove the
wheel covers.
Tyre chains may only be used at
speeds up to 30 mph and, when
travelling on roads that are free of
snow, they may only be used for brief
periods since they are subject to rapid wear on a hard road and may snap.
The use of tyre chains is not permitted on the temporary spare wheel.
Tyre repair kit
Minor damage to the tyre tread can be
repaired with the tyre repair kit.
Do not remove foreign bodies from
the tyres.
Tyre damage exceeding 4 mm or that
is at the tyre's sidewall near the rim
cannot be repaired with the tyre repair kit.9 Warning
Do not drive faster than 50 mph.
Do not use for a lengthy period.
Steering and handling may be
affected.
If the vehicle has a flat tyre:
Apply the parking brake and engage
first gear or reverse gear.
The tyre repair kit is located under the
front seat. Slide seat forwards fully
and fold backrest down to access kit.
1. Take the tyre repair kit out from under the front seat.
2. Remove the compressor.
164Vehicle care
not be driven. Seek the
assistance of a workshop.
20. Stow tyre repair kit under the front
seat.
Notice
The driving characteristics of the repaired tyre are severely affected,
therefore have this tyre replaced.
If unusual noise is heard or the
compressor becomes hot, turn
compressor off for at least
30 minutes.
The built-in safety valve opens at a
pressure of 7 bar (102 psi).
Note the expiry date of the kit. After
this date its sealing capability is no
longer guaranteed. Pay attention to
storage information on sealant
bottle.
Replace the used sealant bottle. Dispose of the bottle as prescribed
by applicable laws.
The compressor and sealant can be
used from approx. -30 °C.
The adapters supplied can be used
to pump up other items e.g.
footballs, air mattresses, inflatabledinghies etc. They are located on the underside of the compressor. To
remove, screw on compressor air
hose and withdraw adapter.
Wheel changing Some vehicles are equipped with a
tyre repair kit instead of a spare wheel 3 161.
Make the following preparations and
observe the following information:
■ Park the vehicle on a level, firm and
non-slippery surface. The front wheels must be in the straight-ahead position.
■ Apply the parking brake and engage first gear or reverse gear.
■ Switch off the air suspension system 3 114.
■ Remove the spare wheel 3 166.
■ Never change more than one wheel
at a time.
■ Use the jack only to change wheels
in case of puncture, not for
seasonal winter or summer tyre
change.
■ The jack is maintenance-free.■ If the ground on which the vehicle is standing is soft, a solid board
(max. 1 cm thick) should be placed
under the jack.
■ No people or animals may be in the
vehicle when it is jacked-up.
■ Never crawl under a jacked-up vehicle.
■ Do not start the engine when the vehicle is raised on the jack.
■ Clean wheel bolts/nuts and their threads before mounting the wheel.9 Warning
Do not grease wheel bolt, wheel
nut and wheel nut cone.
1. Remove the wheel cover using the hook supplied. Vehicle tools
3 155.
2. Install the wheel wrench ensuring that it locates securely and loosen
each wheel bolt/nut by half a turn.