36 10 300 Removing or installing front or rear wheel

Special Tools Required:

NOTE: For Special Tools, refer to SPECIAL TOOLS - 740i & 740iL - E38

36 1 250

IMPORTANT: Wheel was balanced electronically. Observe the following in order to avoid positioning errors and imbalance:

Loosen wheel bolts.
Wheel positioned with valve facing down.
If several wheels are removed at the same time, mark the installation location of the wheels on the tires (e.g. with chalk).
Mark out wheel to wheel hub.
Mark out lockable wheel bolt in relation to wheel.
Release wheel bolts and remove wheel.

IMPORTANT: Contact faces between brake disk and disk wheel and between brake disc and wheel hub must be free of grease.

Fig 1: Loosening Wheel Bolts And Wheel Positioned With Valve Facing Down

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.

NOTE: If there are grease residues in the area of the wheel stud bore, the brake disk must be removed and cleaned.

Fig 2: Identifying Contact Face

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.

Fig 3: Identifying Contact Face

Check brake disc retaining bolt (1) for secure seating.

IMPORTANT: Brake disk retaining bolt must under no circumstances protrude over contact face (2) between brake disc and disc wheel. Tightening torque, brake disc retaining screw, Front axle, refer to 34 11 FRONT BRAKE . Rear axle, refer to 34 21 1AZ 34 21 REAR BRAKE .

Fig 4: Checking Brake Disc Retaining Bolt

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

Fig 5: Applying A Thin Coat Of Grease To Wheel Centering In Disc Wheel

Wheel studs with taper:

Wheel bolt - galvanized.
Wheel bolt - black chrome plated.
Wheel bolt - black chrome plated and lockable.
Lockable wheel stud with adapter, black chrome-plated.

NOTE: To release and tighten down lockable wheel stud, use a matching adapter from special tool 36 1 300 (wheel stud adapter set).

Fig 6: Identifying Wheel Studs With Taper

Clean wheel bolts and check threads for damage, replace, if necessary.

Replace rusty wheel bolts.

IMPORTANT: 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.

IMPORTANT: Under no circumstances use pneumatic or power screwdrivers to install and tighten the wheel bolts.

Fig 7: Tightening Screw In Wheel Studs

IMPORTANT: Disc wheel must rest uniformly against brake disc. Screw in wheel studs and, to center disc wheel, tighten down by hand diagonally and evenly. Using torque wrench, firmly tighten wheel studs in diagonal and even sequence. Tightening torque, refer to 36 10 1AZ 36 10 WHEELS .