BMW 7 Series: Remove Or Install Front Or Rear Wheel

Notes

IMPORTANT: Wheel was balanced electronically.

To avoid tire damage, advise the customer to check the tire inflation pressures on a regular basis (see Owner's Handbook).

Observe the following procedure to prevent shift errors and imbalance:

• Loosen wheel bolts.
• Wheel positioned with valve facing down.
• If several wheels are simultaneously removed, mark installation location of wheels on tires (e.g. with a piece of chalk).
• Mark out wheel to wheel hub.
• Mark out lockable wheel bolt in relation to wheel.
• Unscrew wheel bolts. Remove wheel.

Fig. 18: Locating Wheel Bolts

IMPORTANT: Contact surfaces between:

• brake disc and disc wheel,
• brake disc and wheel hub,

must be clean and free from grease.

Remove dirt, grease residues and corrosion from contact surface (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.

Fig. 19: Identifying Brake Disc And Disc Wheel Contact Surface With Special Tool (36 1 250)

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

Remove dirt, grease residues and corrosion from contact surface (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.

Fig. 20: Identifying Mounting Bolt Position

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

IMPORTANT: Mounting bolt (1) must not under any circumstances protrude over contact surface (2) between brake disc and disc wheel.

Tightening torque brake disc retaining bolt:

• Front axle 34 11 1AZ
• Rear axle 34 21 1AZ

Fig. 21

Apply a thin coat of GREASE to wheel centering (1) in disc wheel.

Fig. 22: Identifying Wheel Centering

Wheel bolts with taper:

1. Wheel bolt - galvanized
2. Wheel bolt - black chrome plated
3. Wheel bolt - black chrome plated and lockable
4. Lockable wheel bolt with adapter, black chrome-plated

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

Fig. 23: Identifying Wheel Bolts

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

Replace rusty wheel bolts.

IMPORTANT: Do not apply oil to wheel bolts.

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

IMPORTANT: Disc wheel must rest uniformly against brake disc.

In the case of non-original BMW wheel bolts/rims it may be necessary to retighten the wheel bolts on account of settling properties (refer to manufacturer's instructions).

Fit wheel bolts and evenly tighten crosswise by hand in order to center the disc wheel.

Tighten down wheel bolts in crosswise sequence with a calibrated torque wrench to prescribed tightening torque 36 10 1AZ.

Fig. 24: Tightening Down Wheel Bolts Using Torque Wrench

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