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Home >> BMW >> 2018 >> 740i >> Repair and Diagnosis >> General Information >> OEM General Information >> General Orphan Data (3 Of 4) >> Attaching the front left wheel

Attaching the front left wheel

Mounting the wheel 

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.
G15188981Courtesy of BMW OF NORTH AMERICA, INC.

Check 

G15188982Courtesy of BMW OF NORTH AMERICA, INC.

Result 

» Spots (> 30%) of the bearing surface (1) of the taper on the screw head show silvery wear.

Measure

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.
G15188983Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

Lug bolts
M14/SW17
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