Wheels and Tires: Service and Repair

Removing and Installing Front or Rear Wheel

Special Tools Required:
- 36 1 250
- 36 1 300

Important!
Wheel was balanced electronically.
Follow instructions on initializing Run Flat Indicator (RPA).

Observe the following procedure to prevent shift errors and imbalance:
- Loosen wheel bolts.
- The wheel is positioned such that the valve is at the bottom.
- If several wheels are removed simultaneously, mark with a piece of chalk on each tyre the axle and side on which the corresponding wheel is fitted.
- Mark alignment of wheel with respect to wheel hub.
- Mark position of lockable wheel bolt.
- Release wheel bolts and remove wheel.

Important!
Contact surfaces between:
- Brake disk and disk wheel
- Brake disk and wheel hub must be free from oil and grease.

Remove dirt, grease residues and corrosion from contact face ( 1 ) with a drill and special tool 36 1 250.

Important!
Do not operate special tool 36 1 250 with an impact screwdriver!

Note:
Degrease contact face with universal cleaner, refer to BMW Parts Service.
The brake disk must be removed and cleaned if grease residue is found in the area of the holes for the wheel bolts.

Check firm fit of brake disc retaining screw ( 1 ).

Important!
On no account must the retaining screw ( 1 ) protrude over contact surface ( 2 ) between brake disk and disk wheel.

Front axle:

Tightening torque:
Brake disk to wheel hub (contact faces between brake disk and wheel hub clean and grease-free) 27 Nm
Brake caliper to steering knuckle 110 Nm
Guide screws 30-35 Nm

Rear axle:

Tightening torque:
Brake disk to wheel hub (contact faces between brake disk and wheel hub clean and grease-free) 27 Nm
Brake caliper to steering knuckle 110 Nm
Guide screws 30-35 Nm

Apply a thin coat of grease to wheel centering ( 1 ) in disk wheel.

Wheel bolts with tapered collar:
a) Wheel bolt - galvanized
b) Wheel bolt - black chrome-plated
c) Wheel bolt - black chrome-plated and lockable
d) Lockable wheel bolt with adapter, black chrome-plated

Note:
Use matching adapter from special tool kit 36 1 300 (wheel bolt adapter set) to release and tighten down lockable wheel bolt.

Important!
Under no circumstances use pneumatic or power screwdrivers to install and tighten the wheel bolts.
Do not apply oil to new wheel bolts.
In the case of used wheel bolts, apply an extremely thin coating of engine oil to the threads and tapers before reinstalling them.

Installation:
Clean wheel bolts and check threads for damage, replace, if necessary.
Replace rusty wheel bolts.

Important!
The disc wheel must rest uniformly against the brake disc.
Fit wheel bolts and evenly tighten crosswise by hand in order to centre the disc wheel.
Use a torque wrench to evenly tighten wheel bolts in a crosswise sequence.

Wheel Bolts Tightening torque:
Thread Torque
M12 / WAF 17 120 Nm
M14 / 17 AF 140 Nm

Important!
From July 2006 changed wheel bolts with a diameter of M14 and 17 A/F!
Note changed tightening torque.