Replacing Tire For Front, Rear or Spare Wheel (Wheel With RDC)

Replacing Tire For Front, Rear Spare Wheel (Wheel With RDC)

Caution! Vehicles with navigation system. When exchanging / replacing tires, or when changing to another tire size a wheel calibration must be carried out in the navigation system, refer to Accessory and Optional Equipment/Navigation System/Testing and Inspection.





For correct mounting of tires, refer to operating instructions supplied wit tire mounting machine. Also make sure that the machine is in perfect condition and that the wheel rim and tire are not damaged.

Note: For approved tires and tire sizes as well as special equipment, refer to Technical Service Bulletins.

Tire removal with a fitting machine:





Unscrew valve insert, discharge air, force off tire bead from rim flange with pressing-off horn of device on outside and inside.
To prevent the pressing-off horn from damaging the RDC wheel electronics, do not rest the pressing-off horn on both rim sides in the area of the valve.
In the event of tire beads that are stuck fast, first release the tire with the( pressing-off horn at various points of the wheel before actually pressing it off, apply tire mounting paste between tire and rim flange and press off tire completely.
Pull off balance weights on rim and clean rim to remove large pieces of dirt.
Clamp wheel on mounting machine.
Narrow rim shoulder always faces upwards.
Swing mounting pillar into position or fold and let it engage.





Adjust mounting head, whereby it must be pressed on the rim edge fully and turn down the lever for the clamp; normally the distance of the mounting head will set in automatically.
The valve should be approx. 15 cm to the right of the assembly head so as to prevent the tire iron from damaging the RDC wheel electronics.
Raise tire bead with tire iron over mounting finger.

Note: To avoid damage, it is recommended to use coated or shrink-fit hose covered tire irons for light alloy rims.





Let mounting machine run back a short distance (counterclockwise) so that tire bead can slide fully onto mounting finger. Then let mounting machine run forward (clockwise) a short distance.
In so doing, always check whether bottom bead is fully in well and tire is, given enough time to move. If the bead clamps, stop the machine and let it run back slightly.





If the upper bead is pulled off the rim, also lift the bottom bead over the mounting finger with the tire iron.
Make sure here that the tire bead does not press onto the RDC wheel electronics.
Let machine run back a short distance again and then forward (clockwise) briefly until there is complete separation of the tire from the rim.





Release lock and tilt back or swing away mounting pillar.
Unclamp and clean rim.
When the wheel electronics are installed, the rim must not be cleaned with high-pressure cleaning equipment.
Visually inspect wheel electronics for external damage and secure seating, do not tighten down screw and union nut. If one of the valve parts is loose, replace the entire valve.
Coat rim flange and tire beads with mounting paste (refer to BMW Parts Service).
Keep wheel electronics free of tire mounting paste.
Clamp rim on fitting machine, valve must be facing 180° to assembly head.
Slide on tire with lower bead partially over rim flange.





Swing or tilt mounting pillar into position and lock.
Check adjustment of mounting finger, readjusting if necessary, and clamp.
Press tire under mounting finger by hand.
Tyre bead should seat in rollers next to mounting finger.
Let mounting machine run forward (clockwise) a short distance.
Fit lower tire bead such that it cannot exert any pressure on the RDC wheel electronics.
Lower tire bead will drop into well.





Turn wheel into fitting position again so that valve is 180° opposite assembly head.
Press upper tire bead under mounting finger. Tire bead should seat in rollers next to mounting finger.

Caution! Do not pinch or damage bead.

Allow fitting machine to run forwards (in clockwise direction) in stages, making sure that the lower tire bead remains in the well.
Fit upper tire bead such that it cannot exert any pressure on the RDC wheel electronics.





After mounting, first release clamps and then inflate tire (without valve).
Increase pressure up to 3.3 bar (330 kPa) in steps (jumping pressure).
If the tire bead does not slide onto rim edge all around, do not increase pressure. Instead, tire must be deflated and tire bead pressed off; then coat rim flange with mounting paste again (refer to BMW Parts Service) and inflate again up to 3.3 bar. If beads bear perfectly on rim shoulders, increase pressure to maximum 4.0 bar in order to "seat" tire.
Screw in valve and correct tire pressure.