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228 Driving mode
Observe the maximum permissible axle load
when tipping and when rolling away or setting
down platform-type swap bodies/containers. Do
not exceed the values in the body/equipment
mounting directive.
Observe the information about attachments, add-
on equipment, installations and conversions
(
/
page 6).
While driving, pay regular attention to the indica‐
tor and warning lamps and the displays on the
on-board computer.
Function of ASR (acceleration skid control)
ASR considerably improves traction, i.e. power
transmission between the tyres and the roadway,
and therefore also improves the vehicle's driving
stability. ASR assists with pulling away and accel‐
erating, particularly on slippery surfaces.
If the drive wheels spin on one or both sides of
the vehicle, ASR is activated automatically.
If the drive wheels spin on one side, ASR brakes
them automatically.
If the drive wheels spin on both sides, ASR auto‐
matically reduces the engine's power output.
If ASR intervenes, this has the following effects:
The À or Á indicator lamp flashes in
R
the instrument cluster.
Cruise control cannot be activated.
R
If cruise control has already been activated, it will
remain active. It is not however possible to accel‐
erate or decelerate using cruise control.
If you switch on the ignition, the À or Á
indicator lamp lights up in the instrument cluster
and goes out again after approximately two sec‐
onds.
ASR is activated.
If the À or Á indicator lamp does not go
out, ASR has a malfunction. Have the fault recti‐
fied at a qualified specialist workshop.
Deactivating/activating ASR
& WARNING Risk of skidding if ASR is
deactivated
If you deactivate ASR, ASR cannot carry out
vehicle stabilisation when pulling away and
accelerating.
ASR should only be deactivated in the
#
following situations.
1
ASR OFF button
%
Vehicles with Stability Control Assist have no
à button. Traction control (ASR function)
is part of Stability Control Assist
(
page 229). When Stability Control Assist
/
is deactivated, traction control is also deacti‐
vated.
It may be best to deactivate ASR in the following
situations:
when using snow chains
R
when driving on loose surfaces, e.g. gravel
R
For vehicles with several driven axles: if
#
the roadway is slippery, engage the differen‐
tial lock (
page 229).
/
To deactivate/activate: press the à but‐
#
ton.
When the À or Á indicator lamp in the
instrument cluster lights up, ASR is deactiva‐
ted.
Function of Stability Control Assist
Stability Control Assist monitors handling and
traction, i.e. power transmission between the
tyres and the roadway. If it detects that the vehi‐
cle is deviating from the direction desired by the
driver, one or more wheels are braked to stabilise
the vehicle. The engine output may also be modi‐
fied to keep the vehicle on the desired course
within physical limits. Stability Control Assist can
also stabilise the vehicle during braking or in criti‐
cal driving situations, e.g. sudden swerving or
fast cornering.
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Do you have a question about the Actros and is the answer not in the manual?
Questions and answers
6242 operating unit for level control has short circuit to ground
To fix a short circuit to ground in the operating unit for level control 6242 on a Mercedes-Benz Actros:
1. Inspect the wiring between the operating unit and the control module for damage or exposed wires.
2. Check the connector pins for corrosion or bending.
3. Test the circuit for continuity and isolate the shorted section.
4. Replace or repair the damaged wiring or connectors.
5. If the operating unit is faulty, replace it.
6. Clear any fault codes and test system functionality.
If the short is to positive (24V) instead of ground, follow similar steps but focus on power supply lines.
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