BMW 7 Series: Brake Booster
REMOVING AND INSTALLING OR REPLACING BRAKE BOOSTER
Necessary preliminary tasks
- Read and comply with GENERAL INFORMATION
- Remove rear left DOME CROSS-BRACE
- Remove left footwell trim
- On vehicles with coolant expansion tank in side panel, front left:
Remove coolant filler neck
After completing tasks, bleed BRAKE SYSTEM WITH DSC.
Extract brake fluid out of expansion tank.
Unfasten brake lines (1).
Installation note:
Tightening torque 34 32 1AZ.
Disconnect vacuum line (2).
Installation note:
Check seal (3), replace if necessary.
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Fig. 103: Identifying Brake Lines, Vacuum Line And Seal
Detach retaining clip (1) on brake pedal.
Pull out locking pin.
Unscrew nuts (2).
Installation note:
Replace self-locking nuts.
Tightening torque 35 11 1AZ.
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Fig. 104: Identifying Retaining Clip And Nuts
IMPORTANT: Do not use any force when removing and installing the brake
unit; the brake
unit can be damaged under certain circumstances.
Brake lines must not be bent.
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Fig. 105: Identifying Brake Booster And Seal
Carefully pull brake booster (1) out of bulkhead and tilt out.
Installation note:
Make sure seal (2) is present and correctly seated.
Replacement
Modify TANDEM BRAKE MASTER CYLINDER.
F04 only
When the repair work is complete, the following service function must be
performed:
- Brake pedal travel sensor adjustment.
READ NEXT:
IMPORTANT: Before beginning work, fully press the brake pedal several
times to reduce the
vacuum pressure in the brake booster. This makes it easier to remove the
vacuum hose.
Vacuum hose and non-re
REPLACING A BRAKE PAD SENSOR (FRONT)
IMPORTANT: The brake pad wear sensor must be replaced once it has been
removed (brake
pad wear sensor loses its retention capability in the brake pad).
If an alr
ADJUSTING PARKING BRAKE
The parking brake test must be carried out on the dynamic brake analyzer as
follows.
Release position:
Wheel circumferential force right/left < or = 300 N.
Press parkin
SEE MORE:
Necessary preliminary work
(cylinder bank 1 to 4)
IMPORTANT: The intake camshaft must first be rotated in such a way that
the camshaft is
free from tension when the bearing caps are released (risk of damage).
Remove right CYLINDER HEAD COVER.
Check TIMING.
Remove RIGHT INLET ADJUSTMENT UNIT.
I
Vehicle features and
options
This chapter describes all standard, country-specific
and optional features offered with the series.
It also describes features and functions that are
not necessarily available in your vehicle, e.g., due
to the selected options or country versions. This
also applies to