90Instruments and controlsPreheating and diesel
particle filter ! illuminates or flashes yellow.
Illuminates Preheating activated. Only activates
when outside temperature is low.
Flashes Control indicator ! flashes if the
diesel particle filter requires cleaning
and previous driving conditions did
not permit automatic cleaning.
Continue driving and if possible do
not allow engine speed to drop below
2000 rpm.
The control indicator ! goes off as
soon as the self-cleaning operation is complete.
Diesel particle filter 3 127.
Deflation detection system
and tyre pressure
monitoring system
w illuminates or flashes red or yellow.Control indicator illuminates red
Tyre pressure loss. Stop immediately
and check tyre pressure. A maximum speed of 50 mph is permitted for run-
flat tyres 3 172.
Control indicator illuminates
yellow
Fault in system or tyre without
pressure sensor mounted (e.g. spare
wheel). Consult a workshop.
Flashes
Flashes three times to indicate system initialisation.
Deflation detection system 3 175,
tyre pressure monitoring system
3 174.
Interactive driving system, continuous damping
control, sport mode IDS+ illuminates yellow.
Illuminates for approximately
10 seconds after the driver's door is
opened. Illumination whilst drivingindicates a fault in the system. The
system switches to the harder chassis setting for reasons of safety. Have the
cause of the fault remedied by a workshop.
IDS Plus
3 140, Continuous damping
control 3 141, Sport mode 3 140.
Engine oil pressure I illuminates red.
Illuminates when the ignition is
switched on and goes out shortly after
the engine starts.
Illuminates when the engine isrunningCaution
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.
Instruments and controls91
3. Move out of the flow of traffic asquickly as possible without
impeding other vehicles.
4. Switch off ignition.9 Warning
When the engine is off,
considerably more force is needed
to brake and steer.
Do not remove key until vehicle is stationary, otherwise the steering
wheel lock could engage
unexpectedly.
Check oil level before seeking the
assistance of a workshop 3 153.
Low engine oil level
S illuminates yellow.
Engine oil level is checked
automatically.
Illuminates when the engine is
running
Low engine oil level. Check engine oil
level and top up as necessary
3 153.
Low fuel Y illuminates or flashes yellow.
Illuminates Level in fuel tank too low.
Flashes
Fuel used up. Refuel immediately.
Never run the tank dry.
Catalytic converter 3 128.
Bleeding the diesel fuel system
3 157.
Open&Start system
0 illuminates or flashes yellow.
Flashes The electronic key is no more within
the reception range of the vehicle interior. The engine cannot bestarted. Hold the Start/Stop button
depressed a bit longer to switch off
the ignition.
or
Failure of the electronic key.
Operation is yet only possible via
emergency operation.
Illuminates
Fault in system. Try to operate with
the spare key, the remote control or
through emergency operation. Hold
the Start/Stop button depressed a bit
longer to switch off the ignition. Seek the assistance of a workshop.
or
The steering wheel lock is still
engaged. Move the steering wheel
slightly and press the Start/Stop
button.
Open&Start system 3 28.
Apply footbrake
j illuminates yellow.
102Instruments and controls
If there is a considerable loss of
pressure, a corresponding message
appears indicating the tyre.
Steer out of flow of traffic as quickly as possible without endangering
other vehicles. Stop and check the
tyres. Mount the spare wheel 3 180.
If run-flat tyres are fitted, maximum
speed is 50 mph. Information 3 172.
Tyre pressure monitoring system
3 174.
Washer fluid level
Low washer fluid level. Top up
washer fluid 3 155.
Trip computer
Trip computer in Board-Info-Display
Access the data by pressing the BC
button on the Infotainment system or
the left adjuster wheel on the steering wheel.
Some information appears in the
display in an abbreviated form.
Once an audio function has been
selected, the lower row of the trip
computer function is displayed
furthermore.Instantaneous consumption
Displays the instantaneous
consumption. At low speeds,
consumption per hour is displayed.
Average consumption
Displays average consumption. The
measurement can be reset at any
time.
Absolute consumption
Displays fuel consumed. The
measurement can be reset at any
time.
Vehicle care173
Run-flat tyres are only permitted on
vehicles with electronic stability
program and tyre pressure monitoring
system or deflation detection system.Caution
Check tyre pressures regularly
even if run-flat tyres are fitted.
Depending on tyre manufacturer, run-
flat tyres can be identified from a
marking on the tyre wall. E.g.
ROF=RunonFlat for Goodyear orSSR=Self Supporting Runflat Tyre
for Continental.
Use of run-flat tyres is only permitted
in combination with factory approved
alloy wheels.
Do not use a tyre repair kit.
The ECO tyre pressure must not be
used.
Run-flat tyres must not be combined
with standard tyres.
If converting to standard tyres, note
that the vehicle is not equipped with a spare wheel or tyre repair kit.
Driving with a damaged tyre
A loss in tyre pressure is indicated by
the tyre pressure monitoring system
or the deflation detection system.
If a tyre has no pressure, continued
driving is possible
■ at a speed of max. 50 mph
■ up to a distance of 50 miles9 Warning
The vehicle will be more difficult to
steer and handle. Braking
distance will be longer.
Adapt driving style and speed to the changed conditions.
Tyre designations
E.g. 195/65 R 15 91 H
195=Tyre width, mm65=Cross-section ratio (tyre
height to tyre width), %R=Belt type: RadialRF=Type: RunFlat15=Wheel diameter, inches91=Load index e.g. 91 is
equivalent to 618 kgH=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.
174Vehicle care
Remove the valve cap key from the
fuel filler flap and use it to unscrew the
valve cap.
On vehicles with tyre pressure
monitoring system, screw the adapter
to the valve.
Tyre pressure 3 205 and on the label
on the inside of the fuel filler flap.
The tyre pressure data refer to cold
tyres. It applies to summer and winter tyres.
Always inflate the spare wheel to the
pressure specified for full load.
The ECO tyre pressure serves to
achieve the smallest amount of fuel
consumption possible. It must not be used with run-flat tyres.
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 drive axle and body style.
2. Identify the engine identifier code.
Engine data 3 200.
3. Identify the respective tyre.The tyre pressure tables show all
possible tyre combinations 3 205.
For the tyres approved for your
vehicle, refer to the EEC Certificate of
Conformity provided with your vehicle
or other national registration
documents.
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.
Tyre pressure monitoring
system
The tyre pressure monitoring system
continually checks the pressure of all
four wheels when vehicle speed
exceeds a certain limit.
All wheels must be equipped with
pressure sensors and the tyres must
have the prescribed pressure.
Vehicle care177Tyre chains
Tyre chains are only permitted on the
front wheels.
Always use fine mesh chains that add no more than 10 mm to the tyre tread
and the inboard sides (including chain lock).
9 Warning
Damage may lead to tyre blowout.
Tyre chains are permitted on tyres of
size 195/65 R 15, 195/60 R 16,
205/55 R16, 205/50 R 17 and
225/45 R17.
Tyre chains are not permitted on tyres of size 225/40 R 18, 225/40 ZR 18
and 235/35 R 19.
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 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 you have a flat tyre:
Apply parking brake and engage first
gear, reverse gear or P.
The tyre repair kit is in the stowage
compartment in the load
compartment.
Push the locking tabs forward and
remove the cover.
1. Take the sealant bottle and bracket with air hose from the
insert.
180Vehicle care
Notice
The driving characteristics of the repaired tyre is 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.
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, inflatable
dinghies 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
3 177.
Make the following preparations and
observe the following information:
■ Park the vehicle on a level, firm and
non-skid surface. The front wheels
must be in the straight-ahead
position.
■ Apply the parking brake and engage first gear, reverse gear or
P .
■ Remove the spare wheel 3 182.
■ Never change more than one wheel
at once.
■ Use the jack only to change wheels
in case of puncture, not for
seasonal winter or summer tyre
change.
■ 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 vehicle when it is raised on the jack.
■ Before screwing in the wheel bolts,
clean them and lightly coat the
taper of each wheel bolt with
commercially available grease.
1. Pull off the wheel cover with the hook. Vehicle tools 3 171.
For wheel covers with visible
wheel bolts: The cover can remain
on the wheel. Do not remove the
retaining rings on the wheel bolts.
182Vehicle care
9. Install the wheel wrench ensuringthat it locates securely and tighten
each bolt in a crosswise
sequence. Tightening torque is
110 Nm.
10. Align the valve hole in the wheel cover with the tyre valve before
installing.
Install wheel bolt caps.
11. Stow the replaced wheel 3 177
and the vehicle tools 3 171.
12. Check the tyre pressure of the installed tyre and also the wheel
bolt torque as soon as possible.
Have the defective tyre renewed or
repaired.
Spare wheel The spare wheel can be classified as
a temporary spare wheel depending
on the size compared to the other
mounted wheels and country
regulations.
The spare wheel has a steel rim.Use of a spare wheel that is smaller
than the other wheels or together with
winter tyres could affect driveability.
Have the defective tyre replaced as
soon as possible.
The spare wheel is kept beneath the
vehicle.
1. Open the stowage in the load compartment 3 171.
2. Fully release the hexagon bolt in the stowage compartment using
the wheel wrench.
3. Lift the spare wheel holder.
4. Unhook the catch and lower the spare wheel.
5. Detach the safety cable.
6. Lower holder all the way and remove spare wheel.
7. Change the wheel.
8. Place replaced wheel in spare wheel holder with outside of wheel
facing upwards. Wheels only up to
16 inches can be placed.