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Vehicle care275No.Circuit18Body control module19AdBlue module20Body control module21Body control module22Body control module23Electric steering wheel lock24Airbag25Diagnostic connector26Power outlet load compartment27EBCM valve28Police provision29–30–31Steering wheel controls32Ignition switch33Climate control34Central gateway moduleNo.Circuit35AUX/USB connector36Wireless charger37Rear wiper38OnStar module39Display40Parking assist41Overhead console42Infotainment SystemVehicle tools
Tools
Vehicles with spare wheel
The jack with wheel wrench, the tools,
an extension bolt for securing a
damaged wheel and the towing eye
are placed in the tool box below the
spare wheel in the load compartment. Spare wheel 3 288.
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276Vehicle careVehicles without spare wheel
The screwdriver and the towing eye
are located in a box below the floor
cover in the load compartment.
Tyre repair kit 3 282.
Vehicles with audio speaker system
The screwdriver and the towing eye
are located below the floor cover in
the load compartment, beside the
round speaker system component.
Tyre repair kit 3 282.
Wheels 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 shouldtherefore 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 3 317.
Page 285 of 345
Vehicle care283
●Type 2 indicated by the on/off
switch at the side of the
compressor.
If vehicle has a flat tyre:
Apply the parking brake and engage
first gear, reverse gear or P.On vehicles with audio speaker
system, the tyre repair kit is stowed together with the tools.
On other versions, the tyre repair kit
is stored in a bag.
Loosen the screw and remove the
bag.
Take the sealant bottle and the
compressor out of the box.
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284Vehicle care
1. Remove the electrical connectioncable and air hose from the
stowage compartments on the
underside of the compressor.
2. Type 1: screw the compressor air
hose to the connection on the
sealant bottle and fit the sealant
bottle into the retainer on the
compressor.
Type 2: remove screw plug from
the compressor and from the
sealant bottle. Screw the bottle on the compressor without removing
the tinfoil from the bottle.
3. Set the compressor near the tyre in such a way that the sealant
bottle is upright.
4. Unscrew valve cap from defective
tyre.
5. Type 1: screw the filler hose to the
tyre valve.
Type 2: remove protection cap
from filler hose and screw the filler
hose to the tyre valve. The air
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286Vehicle careType 2: remove tyre repair kit and
drive immediately up to 10 km, but not longer than 10 minutes. Check
tyre pressure once more. If the
tyre pressure is not obtained,
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.
If the pressure is obtained, correct to the prescribed tyre pressure byusing the compressor to increase
or decrease by opening the air
release valve (turn anticlockwise)
at the air filler hose.
12. Detach the tyre repair kit. Type 1: push catch on bracket to
remove sealant bottle from
bracket. Screw tyre inflation hose
to the free connection of sealant
bottle. This prevents sealant from
escaping.
Type 2: Sealant bottle can not be
removed from the compressor.
Have the sealant bottle replaced
by your workshop.13. Stow tyre repair kit in the load compartment.
14. Remove any excess sealant using a cloth.
15. Take the label indicating maximum permitted speed from
the sealant bottle and affix in the
driver's field of view.
16. Continue driving immediately so that sealant is evenly distributed
in the tyre. After driving approx.
10 km (but no more than
10 minutes), stop and check tyre
pressure. Screw compressor air
hose directly onto tyre valve.
If tyre pressure is more than
1.3 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 1.3 bar, the vehicle must
not be used. Seek the assistance
of a workshop.
17. Stow away tyre repair kit in the box.
18. Fix the box with the screw.
Note
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 min.
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.
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290Vehicle careSome versions have sill panels
with covered vehicle jacking points: pull out the cover at the
respective jacking point firstly.
4. Set the jack to the necessary height. Position it directly below
the jacking point in a manner that
prevents it from slipping.
Attach wheel wrench and with the
jack correctly aligned rotate wheel wrench until wheel is clear of the
ground.
5. Unscrew the wheel nuts. 6. Change the wheel.
7. Screw on the wheel nuts.
8. Lower the vehicle and remove jack.
9. Install the wheel wrench ensuring that it is located securely and
tighten each nut in a crosswise
sequence. Tightening torque is
140 Nm for all models except GSi.
GSi models have a tightening
torque of 190 Nm
10. Align the valve hole in the wheel cover with the tyre valve before
installing.
Install wheel nut caps.
11. Install vehicle jacking point cover.
12. Stow and secure the replaced wheel, the vehicle tools 3 275 and
the adapter for the locking wheel
nuts 3 73.
13. Check the tyre pressure of the installed tyre and the wheel nut
torque as soon as possible.
Stowing the replaced full size
wheel in the spare wheel well
Secure a damaged full size wheel facing upwards with the wing nut in
the spare wheel well after mounting
an extension bolt on the thread bolt.
The extension bolt is stowed with the
vehicle tools 3 275. To secure the
wheel:
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Vehicle care293Towing
Towing the vehicle
Wrap a cloth around the tip of a flat
screwdriver to prevent paint damage.
Insert the screwdriver in the slot at the
edge of the cap. Release the cap by
levering it out carefully.
The towing eye is stowed with the
vehicle tools 3 275.
Screw in the towing eye as far as it will
go until it stops in a horizontal
position.
Attach a tow rope – or better still a tow
rod – to the towing eye.
The towing eye must only be used for
towing and not for recovering the
vehicle.
Switch on ignition to release steering wheel lock and to permit operation of
brake lights, horn and windscreen
wiper.
Caution
Deactivate the driver assistance
systems like active emergency
braking 3 218, otherwise the
vehicle may automatically brake during towing.
Switch the selector lever to neutral.
Release the parking brake.
Caution
Drive slowly. Do not drive jerkily.
Excessive tractive force can
damage the vehicle.
When the engine is not running,
considerably more force is needed to
brake and steer.
To prevent the entry of exhaust gases from the towing vehicle, switch on the
air recirculation and close the
windows.
Vehicles with manual transmission
and All-wheel drive: If the vehicle is
towed with all four wheels on the
ground then there are no technical
Page 296 of 345

294Vehicle carelimitations for speed and distance. If
only one axle has been raised, the
maximum speed is 50 km/h. There is
no distance limitation.
Vehicles with automatic transmission
and All-wheel drive: The vehicle must
be towed facing forwards. If the
vehicle is towed with all four wheels
on the ground, the maximum speed is 50 km/h and for a maximum of
50 km. If the front axle has been
raised, the maximum speed is
50 km/h. There is no distance
limitation.
Seek the assistance of a workshop. After towing, unscrew the towing eye.
Iinsert cap with the outer flange into
the recess and fix cap by pushing.Towing another vehicle
Wrap a cloth around the tip of a flat
screwdriver to prevent paint damage. Insert the screwdriver in the slot at the
edge of the cap. Release the cap by
levering it out carefully.
The towing eye is stowed with the
vehicle tools 3 275.
Screw in the towing eye as far as it will
go until it stops in a horizontal
position.
The lashing eye at the rear
underneath the vehicle must never be used as a towing eye.
Attach a tow rope – or better still a tow
rod – to the towing eye.
The towing eye must only be used for
towing and not for recovering a
vehicle.