The parameters that are reset are those for wheel speed, rolling circumference, and calibration against the tachograph's speed.
The self-learning parameters result in optimized braking independent of the vehicle's load conditions and road angle. The braking force is adapted during driving to give a better pedal feel. When the load changes, the retardation control's parameters are reset automatically.
If there has been a change of trailer, driving conditions have changed, or pedal feel is not good, a reset of the self-learning parameters can be done with this function. This results in faster adaptation to the new conditions.
Test condition:
Parking brake applied.
Ignition on, engine off.
No fault in the system.
Procedure:
Select the function: "Reset self-learning parameters", press "OK".
A dialogue shows: "Operation success/failed", press "OK".
If the operation failed, check test conditions.