Attaching the front left wheel
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Mounting the wheel
Clean the contact surfaces between the brake disc and the wheel rim
NOTE:
TECHNICAL INFORMATION
The contact surface between the brake disc and the wheel rim must be clean and free from oil and grease. There is otherwise a risk of the wheel becoming loose at a later time.
The contact surface between the brake disc and the wheel rim must be clean and free from oil and grease. There is otherwise a risk of the wheel becoming loose at a later time.
- Remove dirt, grease residues and corrosion from the contact surface with a drill and the special tool 2 344 011
.
Do not operate special tool 2 344 011 with an impact screwdriver.
- Degrease the contact surfaces with the universal cleaner (see BMW Group parts sales).
- If there are grease deposits in the area of the wheel bolt holes, remove and clean the brake disc.
- Remove dirt, grease residues and corrosion from the contact surface with a drill and the special tool 2 344 011
.
Do not operate special tool 2 344 011 with an impact screwdriver.
- Degrease the contact surfaces with the universal cleaner (see BMW Group parts sales).
- Check that the mounting bolt (1) for the brake disc is securely seated.
The mounting bolt (1) for the brake disc may not protrude on the contact surface (2) between the brake disc and the wheel rim.
TIGHTENING TORQUES SPECIFICATIONBrake disc to front wheel hub M8 tightening torque 16 Nm TIGHTENING TORQUES SPECIFICATIONBrake disc to rear wheel hub M8 tightening torque 16 Nm - Thinly grease the wheel centering (1) in the wheel rim.CONSUMABLE SPECIFICATION
Brake block paste
* TU = Trade Unit. TU numbers cannot be ordered! For invoicing purposes only.3 g, Bag 83192158851 100 g, Tube 83192158852 5 g, TU* 83230140233 - Coat the wheel hubs at the front and rear in area (1) with a thin layer of grease to protect them from corrosion.
CONSUMABLE SPECIFICATION
| Brake block paste * TU = Trade Unit. TU numbers cannot be ordered! For invoicing purposes only. |
3 g, Bag | 83192158851 |
| 100 g, Tube | 83192158852 | |
| 5 g, TU* | 83230140233 |
- In vehicles with M Carbon ceramic brake: The wheel assembly jack must be used to install the wheel (see applicable BMW Workshop Equipment).
This process is intended to prevent damage to the brake disc.
Check
- Check lug bolts for wear
.
Result
» Spots (> 30%) of the bearing surface (1) of the taper on the screw head show silvery wear.
Measure
- Replace lug bolts.
NOTE: TECHNICAL INFORMATION
A wheel lifter is recommended for easier wheel removal and installation without exertion (see Dealer Equipment Catalog).NOTE: TECHNICAL INFORMATION
Never use an impact screwdriver or electric screwdriver to apply and tighten the lug bolts.
The rim must rest evenly against the brake disc.
In the case of non-original BMW lug bolts/wheel rims, it may be necessary to retighten the lug bolts on user account of setting properties (refer to the documentation from the manufacturer).
Do not apply oil to new lug bolts. - Replace the corroded lug bolts (arrows).
- Clean the lug bolts (arrows).
- Check lug bolts (arrows) and threads for damage, replace lug bolts (arrows) if necessary.
- Join and tighten the lug bolts (arrows).TIGHTENING TORQUES SPECIFICATION
Lug bolts M 14/key range 17
Screw in lug bolts and evenly tighten crosswise by hand in order to center the wheel rim.
Tighten lug bolts to the prescribed tightening torque with a calibrated torque wrench in a crosswise sequence.
Check all the lug bolts in the same order or retighten to the prescribed tightening torque again.tightening torque 140 Nm Check 140 Nm