3 Series E36 318ti (M44) COMP
VS-23/Weigl
Baugruppe/Group: 34
34 02 99 (456)
weltweit
all countries
07/1999
Steering wheel jerking on rapid brake application
E36 /with ASC hydraulic unit MK 20 E-I
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 a
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:
E36 and Z3
Production date: from 03/98 with ASC hydraulic unit MK 20 E-I
Remedy:
In case of complaint, an insert must be fitted in the front axle circuit of the tandem-brake
master cylinder.
Procedure:
Important!
This insert is only to be installed in cars with ASC hydraulic unit MK 20 E-I. This can be
identified by the part number 1 164 896 or 6 751 767 . The part number can be found on
the label on the ASC hydraulic unit or can be read off from the ASC control unit using
diagnosis (DIS).
1.
Carry out a test drive and confirm the complaint.
2.
Identify the ASC hydraulic unit (for part numbers, see above).
3.
Install the insert in the front axle circuit of the tandem-brake master cylinder.
Insert the pedal support and depress the brake pedal lightly. This will prevent brake
fluid from escaping from the tandem-brake master cylinder when the brake lines are
separated. Siphon the hydraulic brake fluid from its reservoir and remove the reservoir.
Please refer to Repair Instructions 34 31 181.
SI Steering wheel jerking on rapid brake application E36 /with ASC hydraulic unit M
BMW AG - TIS
06.02.2013 19:37
Issue status (12/2007) Valid only until next DVD is issued
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