WARNINGThe general information relating to the use of assistance systems must be
observed » page 96, in section Introduction .
Stability Control (ESC)
Read and observe
on page 97 first.
The ESC improves vehicle stability when driving at the limit (e.g. if the vehicle
starts to skid) by braking individual wheels to maintain the desired direction.
If there is a TCS intervention, the warning light flashes in the instrument
cluster.
Anti-lock braking system (ABS)
Read and observe
on page 97 first.
ABS prevents the wheels from locking when braking. Thereby, it helps the
driver to maintain control of the vehicle.
The intervention of the ABS is noticeable from the pulsating movements of
the brake pedal which is accompanied by noises.
When the ABS system is active, do not brake periodically or reduce the pres- sure on the brake pedal.
Engine drag torque control (MSR)
Read and observe
on page 97 first.
MSR counteracts the tendency of the drive wheels to lock during downshifts
or sudden deceleration (e.g. on icy or an otherwise slippery road surface).
If the drive wheels should lock, then the engine speed is automatically in-
creased. This reduces the braking effect of the engine and the wheels can ro-
tate freely again.
Traction control (TCS)Fig. 115
Button for the TCS system
Read and observe on page 97 first.
TCS prevents the spinning of the wheels of the driven axle. TCS reduces the
drive power transmitted to the wheels in the case of slipping wheels. Thereby,
for example, driving on road surfaces with low grip is made easier.
During a TCS intervention, the indicator light flashes in the instrument clus-
ter.
The deactivation/activation of TCS can be carried out, depending on equip-
ment, in one of the following ways. ▶ Infotainment » Owner's Manual - Infotainment .
▶ By pressing the
» Fig. 115 button.
With deactivation , the warning light
lights
up in the instrument cluster and
an appropriate message is displayed in the instrument cluster.
With activation , the warning light
is
extinguished and an appropriate mes-
sage is displayed in the instrument cluster.
The TCS should normally always be enabled. The system should be deactivated
only in the following situations, for example. ▶ When driving with snow chains.
▶ When driving in deep snow or on a very loose surface.
▶ When “rocking a car free” when it has become stuck.
97Assist systems
›Jack up the vehicle
» page 144 until the wheel that needs changing is clear of
the ground.›
Unscrew the wheel bolts and place them on a clean surface (cloth, paper,
etc.).
›
Remove the wheel carefully.
›
Attach the spare wheel and slightly screw on the wheel bolts.
›
Lower the vehicle.
›
Tighten the wheel bolts opposite each other using the wheel wrench (“pull- ing crossways”) » page 144.
›
Replace the wheel trim » page 143 and caps » page 143 .
When fitting unidirectional tyres, ensure that the direction of rotation is cor-
rect » page 136 .
All bolts must be clean and must turn easily. If screws are corroded and diffi-
cult to move, these must be replaced.
WARNING■ Undo the wheel bolts just a little (about one turn), provided the vehicle
has not yet been jacked up. Otherwise the wheel could come loose and fall
off – risk of injury.■
Under no circumstances must the bolts be greased or oiled - cause an ac-
cident.
Subsequent steps
After changing the wheel, the following work must be carried out.
›
Stow the replaced wheel in the well under the floor covering of the luggage
compartment and secure it with a nut.
›
Stow the tool kit in the space provided and secure using the band.
›
Check tyre pressure on the mounted wheel and adjust if necessary and, with
vehicles with tyre pressure monitoring, save the tyre pressure values in the
system » page 109 .
›
Have the tightening torque of the wheel bolts checked as soon as possible.
The prescribed tightening torque is 120 Nm.
Replace the damaged wheel or consult a specialist garage about repair op-
tions.
WARNINGTightening torque which is too high can damage the threads and this can
result in permanent deformation of the contact surfaces on the rim. Where
tightening torque is too low, the wheels may become loose while driving -
risk of accident. Therefore drive cautiously and only at a moderate speed
until the tightening torque has been checked.
Removing/stowing the emergency or spare wheel
Fig. 164
Take out the wheel
The wheel is located in a well under the floor covering in the luggage compart-
ment and is fixed in place with a screw.
Take out the wheel
›
Lift up the floor in the luggage compartment.
›
Loosen the retaining belt and take out the box with the tool kit.
›
Unscrew the nut in the direction of arrow » Fig. 164 and take out the wheel.
Stow the wheel
›
Place the wheel into the wheel well with the wheel rim pointing downward.
On vehicles with the vehicle battery in the boot, lay down the wheel with the
outer face upward.
›
Pull the fixing band through the opposite holes in the wheel rim.
›
Screw the nut in the opposite direction to the arrow until it stops » Fig. 164.
›
Place the box with the tool kit back inside the wheel and secure it with the
tape.
›
Fold back the floor in the luggage compartment.
142Do-it-yourself
