Page 235 of 287
Vehicle care233Version 1 (Eco)No.Circuit1Clutch switch, power steering4Horn5Front and rear screenwash
pump6Front and rear screenwash
pump7Rear power outlet8Rear window wipers10/11Central locking systemNo.Circuit13Head-up display, climate
controls, Infotainment system
controls, gear selector14Anti-theft alarm system, tele‐
matic unit17Instrument cluster19Steering wheel controls21Anti-theft system or electronic key system22Front camera, rain and light
sensor23Seat belt reminder24Parking assist, Infotainment
system, rear view camera25Airbags29Infotainment system31Infotainment system (+
battery)32Front power outletNo.Circuit34Interior mirror, blind spot
monitoring system, door
mirror controls35Heated washer jets, headlight
range adjustment36Interior lights, torch charger
Version 2 (Full)
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234Vehicle careNo.Circuit1Anti-theft system or
electronic key system5Parking assist, Infotain‐
ment system, rear view
camera7Rear climate controls,
audio system amplifier8Rear window wipers10/11Central locking system12Anti-theft alarm system17Rear power outlet18Telematic unit21Interior lights, torch
charger22Interior lights, glovebox
light23Blind spot monitoring
system, door mirror
controls24Steering wheel controlsNo.Circuit25Headlight range adjust‐
ment26Seat belt reminder27Front camera, rain and
light sensor28Head-up display, front
climate controls, Info‐
tainment system
controls, gear selector30A or 30BAudio system (+
battery)31Airbag33Front power outlet35Instrument cluster36Infotainment systemVehicle tools
Tools
The tools are located in the box
underneath the left front seat.
Page 238 of 287
236Vehicle care1. Insert the box with the frontinclined upwards. To take it past
bar 2, push the box in and down.
2. Once the box is in the housing,
push it down and slide latches
outwards to secure it.
Vehicles with spare wheel
The box contains:
1. a wheelbrace for removing the wheel bolts and operating the
jack.
2. a jack to raise the vehicle.
3. wheel bolt cap or hub cap removal
tools. These tools are designed to
remove the wheel bolt head
covers on alloy wheels or the hub
cap on steel wheels.
4. a wheelbrace adapter for the security wheel bolts.
5. a towing eye.
Vehicles without spare wheel
The box contains a towing eye and a
tyre repair kit.
Tyre repair kit 3 241.
Page 239 of 287

Vehicle care237Wheels 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.
Winter tyres
Winter tyres improve driving safety at temperatures below 7 °C and should
therefore be fitted on all wheels.
In accordance with country-specific
regulations, affix the speed sticker in
the driver's field of view.
All tyre sizes are permitted as winter
tyres 3 271.Tyre designations
E.g. 225/55 R 18 98 V225:tyre width, mm55:cross-section ratio (tyre height
to tyre width), %R:belt type: RadialRF:type: RunFlat18:wheel diameter, inches98:load index e.g. 98 is equivalent
to 750 kgV:speed code letter
Speed code letter:
Q:up to 160 km/hS:up to 180 km/hT:up to 190 km/hH:up to 210 km/hV:up to 240 km/hW:up to 270 km/h
Choose a tyre appropriate for the
maximum speed of your vehicle. Refer to the EEC Certificate of
Conformity provided with your vehicle
or other national registration
documents. Optional equipment
could reduce the maximum speed of
the vehicle.
Directional tyres
Directional tyres should be mounted
so that they rotate in the correct
direction. The proper rotation
direction is indicated by a symbol (e.g. an arrow) on the sidewall.
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 pressure 3 271.
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:
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238Vehicle care1.Identify the engine identifier code.
Engine data 3 268.
2. Identify the respective tyre.
The tyre pressure tables show all
possible tyre combinations 3 271.
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.
9 Warning
For specific tyres the
recommended tyre pressure as
shown in the tyre pressure table may exceed the maximum tyre
pressure as indicated on the tyre.
Never exceed the maximum tyre
pressure as indicated on the tyre.
Temperature dependency
The tyre pressure depends on the
temperature of the tyre. During
driving, tyre temperature and
pressure increase. Tyre pressure
values provided on the tyre
information label and tyre pressure
chart are valid for cold tyres, which means at 20 °C.
The pressure increases by nearly
10 kPa for a 10 °C temperature
increase. This must be considered
when warm tyres are checked.
Tyre deflation detectionsystem
The tyre deflation detection system
continually checks the rotation speed
of all four wheels and warns on low
tyre pressure condition once vehicle
is driving. This is achieved by
comparing tyre rolling circumference
with reference values and further
signals.
If a tyre loses pressure the control
indicator q illuminates, a warning
chime is given and a warning
message is displayed in the Driver
Information Centre.
In this case reduce speed, avoid
sharp cornering and strong braking.
Stop at next safe opportunity and
check tyre pressure.
Control indicator q 3 114.
After adjusting tyre pressure initialise
system to extinguish the control
indicator and restart system.Caution
Deflation detection system warns
just about low tyre pressure
condition and does not replace
regular tyre maintenance by the
driver.
In case of a system malfunction, the
control indicators q and R
appear at the same time or a
message is displayed in the Driver
Information Centre. Set correct tyre
pressure and reinitialise system. If the
failure continues to be displayed,
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Vehicle care239contact a workshop. The system is
inoperable when ABS or ESC has a
malfunction or a temporary spare wheel is used. Once the road tyre has
been refitted, check the tyre pressure with cold tyres and initialise the
system.
System initialisation After tyre pressure correction or
wheel change, the system must be
initialised to learn new circumference
reference values:
1. Always ensure that all four tyres have correct tyre pressure
3 271.
2. Apply parking brake. 3. Start the initialisation procedure:
a) Vehicles without Infotainment
system: Press button q for 3
seconds. A chime confirms the
start.
b) Vehicles with Infotainment
system: Initialise the deflation
detection system in the vehicle
personalisation 3 124.
4. Reset is confirmed by pop-up indication.
After initialisation system
automatically calibrates to new tyre
pressures during driving. After longer
drive the system will adopt and
monitor new pressures.
Always check tyre pressure with cold
tyres.
System has to be reinitialised when:
● Tyre pressure has been changed
● Load condition has been changed
● Wheels have been swapped or exchanged
The system will not warn
instantaneously on a tyre blow out or a rapid deflation. This is due to
required calculation time.
Tread depth
Check tread depth at regular
intervals.
Tyres should be replaced for safety
reasons at a tread depth of 2-3 mm
(4 mm for winter tyres).
For safety reasons, it is
recommended that the tread depth of
the tyres on one axle should not vary
by more than 2 mm.
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240Vehicle care
The legally permissible minimum
tread depth (1.6 mm) has been
reached when the tread has worn
down as far as one of the tread wear
indicators (TWI). Their position is
indicated by markings on the
sidewall.
If there is more wear at the front than
the rear, swap round front wheels and rear wheels periodically. Ensure that
the direction of rotation of the wheels
remains the same.
Tyres age, even if they are not used.
We recommend tyre replacement
every six years.
Changing tyre and wheel
size
If tyres of a different size than those
fitted at the factory are used, it may be necessary to reprogramme the tyre
deflation detection system and make
other vehicle modifications.
Tyre deflation detection system
3 238.
Have the label with tyre pressures
replaced.9 Warning
The use of unsuitable tyres or
wheels may lead to accidents and will invalidate the vehicle
operating permit.
Wheel covers
Wheel covers and tyres that are
factory approved for the respective
vehicle and comply with all of the
relevant wheel and tyre combination
requirements must be used.
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.
Vehicles with steel wheels: When
using locking wheel nuts, do not
attach wheel covers.
Tyre chains
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Vehicle care241Tyre chains are only permitted on the
front wheels.
Always use fine mesh chains that add
no more than 9 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 all tyres
sizes allowed for the vehicle.
Temporary spare wheel
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 tyre's sidewall cannot be repaired with the tyre repair kit.
9 Warning
Do not drive faster than 80 km/h.
Do not use for a lengthy period.
Steering and handling may be
affected.
In the case of a flat tyre:
Apply the parking brake and engage
first gear, reverse gear or P.
The tyre repair kit is located in the tool
box underneath the left front seat.
Tool box 3 234.
1. Pull speed limit label from the tyre
repair kit and place it in driver's
visible area.
2. Pull the electrical cable and air hose out of the compartments on
the underside of the kit.
3. Turn selector A to the "sealant"
position. Check that switch B is in
position J.