Special tools required:
Necessary preliminary tasks:
Lift vehicle.
Check wheel with special tool 36 1 030 (measuring fixture) for lateral runout.
If applicable, remove balance weights.
Check lateral runout of rim with special tool 36 1 030 (measuring fixture).
Check radial runout of rim with special tool 36 1 030 (measuring fixture).
REMOVING OR INSTALLING FRONT OR REAR WHEEL
Special tools required:
IMPORTANT: Wheel was balanced electronically.
Observe safety instructions on raising the vehicle.
Follow instructions on initializing Run Flat Indicator (RPA).
Observe the following procedure to prevent shift errors and imbalance:
IMPORTANT: Contact surfaces between:
must be free from grease.
Fig. 1: Locating Wheel Bolts
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.
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 Special Tool (36 1 250)
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.
Fig. 3: Identifying Special Tool (36 1 250)
Check brake disk retaining bolt (1) for secure seating.
IMPORTANT: Mounting bolt (1) must not under any circumstances protrude over contact surface (2) between brake disk and disk wheel.
Tightening torque brake disk retaining bolt:
Front axle 34 11 1AZ.
Rear axle 34 21 1AZ.
Fig. 4: Identifying Brake Disk Retaining Bolt
Apply a thin coat of grease to wheel centering (1) in disk wheel.
Fig. 5: Identifying Wheel Centering
Wheel studs with taper:
NOTE: To release and tighten down lockable wheel stud, use a matching adapter from special tool 36 1 300.
Fig. 6: Identifying Wheel Bolts
Clean wheel bolts and check threads for damage, replace, if necessary.
Replace rusty wheel bolts.
IMPORTANT: Do not apply oil to new wheel bolts.
Apply a thin coating of engine oil to threads and tapers of used wheel studs before insertion.
IMPORTANT: Under no circumstances use pneumatic or power screwdrivers to install and tighten the wheel bolts.
Screw in wheel studs and, to center disk wheel, tighten down by hand diagonally and evenly.
Using torque wrench, firmly tighten wheel studs in diagonal and even sequence.
Tightening torque 36 10 1AZ.
IMPORTANT: Disk wheel must rest uniformly against brake disk.
Fig. 7: Tightening Wheel Studs Using Torque Wrench
NOTE: For wheels with Styling 90 wheel cover.
The wheel cover can be removed for cleaning and removal of foreign objects.
Fit special tool 36 1 120 (3) as shown on rim (1) (near valve).
Engage removal fork of special tool 36 1 120 (3) in wheel cover (2).
Pull off wheel cover (2) with handle of special tool 36 1 120 (3).
Fig. 8: Fitting Special Tool On Rim