36 11 533 Removing and installing/replacing RDC wheel electronics (2nd generation/3rd generation)

If a tire sealant 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.

Before the installation of new wheel electronics with valve, thoroughly clean the valve bore of the wheel rim.

Do not treat wheel electronics with solvents, cleaning agents etc. If dirt contamination, wipe with a clean cloth only.

Do not clean wheel electronics with compressed air.

Necessary preliminary tasks 

• REMOVE TYRE 

Labelling of generation 2.3 wheel electronics 

1. Transmission frequency of wheel electronics
2. Large Torx socket screw
3. BMW part number
4. Tightening torque of Torx screw and union nut
5. Width across flats of union nut
6. Serial number of wheel electronics
7. Production date of wheel electronics

Fig 1: Identifying Labels On Generation 2.3 Electronic Wheel Module (SP303 RDC-01 And RDC-02)

Courtesy of BMW OF NORTH AMERICA, INC.

Labelling of generation 2.4 and 3.3 wheel electronics 

1. Data Matrixcode
2. BMW part number
3. FCC ID = radio authorization
4. Wheel electronics ID
5. Transmission frequency
6. Pressure sensor
7. Production date of wheel electronics
8. Tightening torque
9. Width across flats of union nut

Fig 2: Identifying Labels On Generation 2.4 And 3.3 Electronic Wheel Module (RDC-LC)

Courtesy of BMW OF NORTH AMERICA, INC.

Labelling of generation 3.4/3.41 wheel electronics 

1. FCC ID = radio authorization
2. Tightening torque
3. Pressure sensor
4. Data Matrixcode
5. Production date of wheel electronics
6. Transmission frequency
7. Wheel electronics ID
   Fig 3: Identifying Labels On Generation 3.4/3.41 Electronic Wheel Module

   Courtesy of BMW OF NORTH AMERICA, INC.
8. Width across flats of union nut
9. BMW part number

Removing wheel electronics 

Release union nut (1).

Fig 4: Identifying Union Nut

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Remove wheel electronics and valve (1) from valve hole.

Fig 5: Identifying Wheel Module Valve

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Using suitable pliers (2), unscrew valve (1) from the thread of the square-head bolt (3), while holding the wheel electronics module (4) firm. Completely unscrew valve (1).

Remove square head screw from fixture for wheel electronics module.

Installation note: 

The valve must be renewed! 

Failure to replace the part leads to leaks! 

Fig 6: Unscrewing Valve From Thread Of Square-Head Bolt Using Plier

Courtesy of BMW OF NORTH AMERICA, INC.

Installing wheel electronics 

Insert new square-head bolt (1) in wheel electronics module (2).

Screw single-use valve insert (3) three turns onto square-head bolt (1).

Fig 7: Identifying Wheel Module With Square Head Bolt And Valve

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Insert valve insert with wheel electronics into cleaned valve bore.

Both outer feet on the underside of the wheel electronics module must be resting against the rim wall.

Fig 8: Identifying Wheel Module

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Screw on union nut (1) by hand as far as it will go.

Tighten union nut until the inner strip-off ring breaks. Breakage is perceptible audibly and tangibly (momentary drop in torque resistance).

Then fully tighten union nut (1).

Tightening torque 36 11 1AZ .

Fig 9: Identifying Union Nut

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