BMW 7 Series: Checking Rim For Lateral And Radial Runout
Necessary preliminary tasks
- Remove WHEEL
- Check WHEEL for lateral and radial runout
- Remove TYRE from disc wheel
- Remove dirt from rim well and rim flange
IMPORTANT: Disc wheels are not allowed to be repaired!
Mount disc wheel in balancing machine.
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Fig. 30: Identifying Disc Wheel On Wheel Balancing Machine
Use suitable wheel centering element supplied with corresponding balancing machine.
- Basic flange
- Wheel centering element
- Type flange
- Clamping nut
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Fig. 31: Identifying Basic Flange, Wheel Centering Element, Type Flange,
Clamping Nut
Place dial gauge sensor on rim shoulder.
Turn wheel by hand and measure max. radial runout.
Carry out measurement on both rim shoulder sides.
NOTE: Dial gauge must be vertical to rim shoulder.
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Fig. 32: Measuring Max. Radial Runout Using Dial Gauge
Position sensor on rim flange.
Turn wheel by hand and measure max. lateral runout of rim with special tool 36 1 030 (measuring fixture).
Carry out measurement on both rim flanges.
NOTE: Dial gauge must be vertical to rim flange.
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Fig. 33: Measuring Max. Lateral Runout Using Dial Gauge
IMPORTANT: Avoid transformation errors during subsequent installation tasks.
READ NEXT:
General Information On Light Alloy Disc Wheels
NOTE: It is sometimes difficult to distinguish light alloy disc wheels
visually from steel
disc wheels.
Identifying features:
Sticker on light alloy disc wheel. (1) = Indication "Aluminium"
Wall t
Removing And Installing RDC (Tyre Pressure Control) Control Unit
IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC
DAMAGE (ESD protection).
Necessary preliminary tasks
Remove right LUGGAGE COMPARTMENT WHEEL ARCH PANEL.
Disconnect plug con
Removing And Installing/Replacing RDC Reception Aerial
Necessary preliminary tasks
Remove front left UNDERBODY PANELLING
Disconnect plug connection (1).
Gently press retaining tabs apart in direction of arrow and remove RDC aerial
(2).
Fig. 46: Pres
SEE MORE:
Removing And Installing/Renewing Dynamic Drive In The Wheel Arch
Notes
WARNING: DANGER OF POISONING if oil is ingested/absorbed through the
skin!
RISK OF INJURY if oil comes into contact with eyes and skin!
IMPORTANT: Adhere to the utmost cleanliness. Do not allow any dirt to
enter the hydraulic
system.
Do not draw off hydraulic fluid (risk of contamination).
Removing And Installing/Replacing Acoustic Cover (N63)
Remove acoustic cover (1) in following steps:
Raise
Remove in direction of travel
Installation:
Insert acoustic cover (1) into existing rubber guides.
Fig. 18: Identifying Acoustic Cover
REMOVING AND INSTALLING/REPLACING ENGINE (N63)
Necessary preliminary work
Move ENGINE COMPARTMENT LID into
