Replacing RDC Wheel Electronics

Replacing RDC Wheel Electronics


Note:
If a tire sealing fluid has been used, replace the wheel electronics.
When a tire has been removed, do not clean the rim with installed wheel electronics with high-pressure cleaning equipment.
Do not treat wheel electronics with solvents, cleaning agents etc. If dirty, wipe with a clean cloth only.
Do not clean wheel electronics with compressed air.

Caution!
If the wheel electronics have been removed, the complete valve must be replaced.

Remove tires.





Labeling of wheel electronics
1 Transmitting frequency of wheel electronics
2 Large Torx socket
3 BMW part number
4 Tightening torque of Torx screw and union nut
5 Width across flats of union nut
6 Identification code of wheel electronics
7 Manufacture date of wheel electronics

Removing wheel electronics





Release Torx socket screw (1).
Remove wheel electronics (2).





Check filter surface (1) for pressure measurement for contamination.

Note: Wipe filter surface with a clean cloth only. If filter surface is dirty, replace wheel electronics.





Release union nut with special too[ 00 2 190; if necessary, grip valve body (1) at cylindrical section of ball head.
Remove valve body from rim.





Remove washer (1).

Installing wheel electronics





Insert new Torx socket screw (1) in wheel electronics (2) and grip firmly, screw new valve body (3) by hand approx. 3 turns onto screw.

Note: Do not tighten screw; wheel electronics and valve body housing must be loosely joined together.





Insert valve body with wheel electronics into cleaned valve bore.
Here the radial bore for gripping on the circumference of the valve body ball head must point outwards.





Insert the brace supplied with the valve into the valve body bore.
Fit new washer and screw on new union nut by hand as far as it will go.
Tighten union nut, using brace to prevent valve body from twisting.
Valve on disc wheel (RDC) 3.5 Nm

Note: Remove brace, otherwise it may damage the tire.





Press wheel electronics gently into well base and tighten Torx socket screw (1).
Wheel electronics (RDC) on valve 3.5 Nm