5 Series E34 525td (M51) TOUR
refer to Technical Data.
Always strip preservative off new parts before installation. With the rear brake discs, also strip preservative off
brake drum on parking brake.
-
Brake drums:
Brake drums must not be scored or cracked; in addition, the maximum drum diameter, radial runout and surface
roughness of the friction surfaces must not exceed or drop below the permitted values.
Refer to Technical Data.
Always strip preservative off new parts before installation.
-
Brake calipers:
Only approved pastes on the basis of glycine must be used for repairs of brake calipers.
All moving parts on the brake caliper must move freely: note grease specifications.
To grease the caliper guides, always use BMW-approved lubricants (refer to BMW Service Operating Fluids).
Brake lines, brake hoses:
-
Brake lines and brake hoses must be correctly routed and must not abut with body or components in a way which
would cause chafing.
-
To prevent damage, release and tighten brake line couplings with a special brake line wrench only.
-
The system must be bled each time any brake lines have been detached.
-
Check all connection points for leaks (seal integrity).
-
Only tighten down brake hoses on the front axle when wheels are in straight-ahead position.
-
Close open connections on brake lines and individual components to prevent dirt from entering the brake system.
-
Observe tightening torques when tightening down brake line couplings,
refer to tightening torques 34 32 1AZ .
Anti-lock braking system ABS/slip control system ASC+T:
The ABS is essentially maintenance-free but bear in mind the following when working on vehicles with ABS systems:
-
When carrying out welding work with electric welding equipment, be sure to disconnect the plug from the
electronic control unit (ignition turned off).
-
During painting work, the electronic control unit may be subjected for brief periods to loads of max. 95
°
C and for
long periods (approx. 2 hours) to loads of max. 85
°
C.
-
Terminals must be completely tight on end poles of battery.
-
Brake lines on hydraulic unit must not be swapped over: if applicable, mark them prior to disassembly.
-
The ABS must be tested in accordance with the "Electrical Troubleshooting Manual" if one of the following ABS
components has been removed or replaced:
-
Hydraulic control unit
-
ABS control unit
-
Wheel-speed sensor
-
ABS wiring harness
-
Valve control relay
-
Relay pump motor
RA General Data
BMW AG - TIS
23.01.2013 07:47
Issue status (12/2007) Valid only until next DVD is issued
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