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Braking and parking
maintained or are not functioning correct-
ly. This includes, among others, brak
es,
tyres and other systems already men-
tioned.
●
Remember that changing and fitting oth-
er components to the vehicle can affect
operation of the ABS, HBA and ESC.
●
Changes to the vehicle suspension or us-
ing unapproved wheel/tyre combinations
can affect operation of the ABS, HBA and
ESC, as well as their effectiveness.
●
Likewise, the effectiveness of ESC de-
pends on the use of suitable tyres
›››
page 330.
Note
●
The ABS and ASR will only operat
e cor-
rectly if the four wheels have identical
tyres. Any differences in the rolling radius
of the tyres can cause the system to re-
duce engine power when this is not desired.
●
The regulating processes of the systems
can make noises due to their operation.
●
If the warning lamp or lights up,
there could be a fault
›››
page 87.
●
Any modifications made to the vehicle
(for example, to the engine, brake system,
running gear or to the combination of
wheels and tyres) may affect the operation
of the ABS, ASR and EDS.
Connecting and disconnecting the
ASR
Fig. 268
Detailed view of the centre console:
butt
on used t
o switch ASR on and off (vehicles
with ESC)
The electronic stability control ESC consists
of ABS, EDL and ASR and only w
orks when
the engine is running.
The ASR can be s
witched off while the engine
is running by pressing the button
›››
Fig. 268. The ASR (and similar) is only
switched off when the required traction is not
obtained:
●
When driving through deep snow or on
loose ground (gravel, etc.).
●
When “freeing” a trapped vehicle.
Turn the ASR back on by pressing the
button
›››
Fig. 268.
Parking
To park the vehicle
When parking your vehicle, all legal require-
ments should be observ
ed.
Always note the following points when park-
ing the vehicle:
●
Park the vehicle on a suitable surface
›››
.
●
Connect the electronic parking brake
››
›
page 284.
●
For an automatic gearbox, move the selec-
tor l
ever to position P.
●
Switch the engine off and remove the key
from the ignition. Turn the steering wheel
slightly to engage the steering lock.
●
With a manual gearbox, engage first gear
on flat ground and slopes, or even reverse
gear on hills, and release the clutch pedal.
●
When leaving the vehicle, take all keys with
you.
Additionally, on steep slopes and inclines
Before switching off the engine, rotate the
steering wheel so that if the vehicle should
move, it will be held by the kerb.
●
On slopes, turn the front wheels so that
they are against the edge of the kerb.
»
289
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