3 Series E46 316i (M43TU) SAL
VS-23/Weigl
Baugruppe/Group: 34
34 01 98 (373)
weltweit
all countries
Datum/Date:
05/2000
Update: 02/2001
Steering wheel jerking on rapid brake application
E46, except four-wheel drive and M3
Complaint:
A "jerk" can be felt in the steering wheel at all speeds when the brakes are applied rapidly.
This is felt in the form of a pulse, i.e. the "jerk/vibration" is only felt at the very start of each
rapid brake application.
It is not possible to say which side the steering wheel will pull to first. The brakes work
properly. Vehicle yaw is not discernible.
Cause:
Oversensitive front axle.
Affected
vehicles:
•
All E46 with DSC, except E46 with option 0203 ("four-wheel drive system") and except
E46/M3.
•
All E46 without DSC up to production date December 1999, except E46/M57 ("330d").
Remedy:
Vehicles with "dynamic stability control" (DSC):
In case of complaint, the vehicle must undergo wheel alignment and the brake system must
be bled. Then test drive the vehicle to assess whether the fault has been rectified. If
necessary, replace the rubber mount of both front axle control arms.
Vehicles without "dynamic stability control" (DSC):
In case of complaint, the vehicle must undergo wheel alignment and adjustment and a
restrictor valve must be retrofitted to the hydraulics of the front axle brake circuit. Then test
drive the vehicle to assess whether the fault has been rectified. If necessary, replace the
rubber mount of both front axle control arms.
Procedure:
Vehicles with "dynamic stability control" (DSC):
1.
Carry out a test drive and confirm the complaint. Then perform wheel alignment on the
vehicle using the kinematic diagnosis system (KDS).
Please refer to Repair Instructions 32 00 150.
If necessary:
-
Adjust the front axle toe-in (with KDS).
Please refer to Repair Instructions 32 00 601.
-
Adjust the front axle camber and toe-in (with KDS).
Please refer to Repair Instructions 32 00 610.
-
Adjust the rear axle (with KDS).
Please refer to Repair Instructions 32 00 620.
Important!
When performing wheel alignment, it is important that the vehicle is set to the
respective ideal/mean value (without tolerance, values to left/right identical), even if
the measured values are within tolerance.
2.
Bleed the brake system.
Please refer to Repair Instructions 34 00 050.
Then carry out a test drive.
SI Steering wheel jerking on rapid brake application E46, except four-wheel drive a
BMW AG - TIS
19.01.2013 09:30
Issue status (12/2007) Valid only until next DVD is issued
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