34 10 014 Adjusting handbrake

WARNING: This page is about a different variant/trim than selected.

Special tools required:

34 6 306
34 6 307
34 6 308
34 6 309 . See BRAKES - SPECIAL TOOLS -- CLUBMAN .

Perform inspection in the following manner:

When 1st ratchet is engaged, no braking force should be exerted.

The difference in wheel circumferential forces between the left and right wheels may deviate by max. 30 % from the greater value (measured on brake analyzer).

In event of larger deviations of wheel circumferential force: adjust handbrake. .

Braking with locked wheels must be possible with the handbrake.

The handbrake must be readjusted if the actuation stroke is greater than 6 teeth.

NOTE: The handbrake can only be adjusted correctly when the parking brake Bowden cables and all moving handbrake parts are free to move and fully operational.
Basic handbrake adjustment is necessary:

In event of excessive actuation stroke (6 teeth).
When replacing parking brake Bowden cables
When replacing handbrake lever.

Setting instruction for parking brake Bowden cables

Release gaiter (1) of parking brake lever from clip.

Release self-locking nut (2) until the load on the Bowden cable has been relieved completely.

Fig 1: Identifying Self-Locking Nut And Gaiter

Courtesy of BMW OF NORTH AMERICA, INC.

Screw in adjusting nut on handbrake lever until a gap (A) of 0.5-1.5 mm between handbrake actuating lever (2) and stop (1) is set at brake calipers.

Fig 2: Identifying Handbrake Actuating Lever And Stop

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Observe following sequence:

Release adjusting nut on handbrake lever completely.
Remove brake pads.
Insert brake piston into brake caliper.
Install brake pads.
Adjust adjusting nut on handbrake lever as shown above.
Apply handbrake lever three times.
Press brake pedal to floor at least three times so that air gap can be set.
Carry out operational check

Checking adjustment on brake analyzer

0th tooth (handbrake released): Vehicles with manual transmission: Shift lever in neutral position.

Vehicles with automatic transmission: Selector lever in "N" position wheel circumferential force ≤ 100 N.

1st tooth: No increase in braking force with regard to 0th tooth. Indicator lamp can be lit.

2nd tooth: An increase in braking force must take place.

Indicator lamp must be lit.

3rd tooth: Increase in braking force.

4th tooth: Wheel circumferential force per wheel:

700 N to 1300 N.

(Must be achieved in the 4th tooth at the latest)