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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.
Page 158 of 209

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.
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Vehicle care163
13. All of the sealant is pumped intothe tyre. Then the tyre is inflated.
14. The prescribed tyre pressure should be obtained within
10 minutes. Tyre pressure
3 198 . When the correct pressure
is obtained, turn off the
compressor by setting rocker
switch to position O.
If the prescribed tyre pressure is
not obtained within 10 minutes,
remove the tyre repair kit. Move
the vehicle one tyre rotation
(approx. 2 metres). Reattach the
tyre repair kit and continue the
filling procedure for 10 minutes. If
the prescribed tyre pressure is still not obtained, the tyre is too badly
damaged. Seek the assistance of
a workshop.
Drain excess tyre pressure with
the button beside the pressure
indicator.
Do not run the compressor for
longer than 10 minutes.
15. Detach the tyre repair kit. Screw the sealant filler hose to the free
connection on the sealant bottle.
This prevents sealant from
escaping. Stow tyre repair kit
under the front seat.
16. Remove any excess sealant using a cloth.
17. Take the label indicating maximum permitted speed from
the tyre repair kit and affix in the
driver's field of view.
18. Continue driving immediately so that the sealant is evenly
distributed throughout the tyre.
After driving approx. 6 miles, but
no more than 10 minutes, stop
and check tyre pressure using the
compressor. Screw compressor
air hose directly onto tyre valve
and compressor when doing this.
19. If the tyre pressure is more than 3.1 bar , set it to the correct value.
Repeat the procedure until there
is no more loss of pressure.
If the tyre pressure has fallen
below 3.1 bar, the vehicle must