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The wheel electronics must be replaced if: The housing is visibly deformed • The filter surface is so soiled that it cannot be cleaned by wiping • Tyre sealant (tyre sealing liquid) has been used. • 1. Install wheel electronics loosely at valve (do not tighten) and position in valve bore together with valve and bead seat sealing ring. ATTENTION Remove assembly pin after installing valve (required to counter). Otherwise the tyre will be damaged → Carry out the tightening procedure for the valve in one work step (tighten without interruption up to attaining the prescribed tightening torque). 2. Fit washer, chamfered on both sides, and screw on union nut until it seats. Visibly twist bore at valve foot. If necessary, block with suitable assembly pin. The tightening torque is 4 Nm (3 ftlb.) (± 0.5 Nm (0.4 3. Push wheel electronics -A- slightly into rim well (this adjusts the angle of inclination of valve to wheel electronics). 4. Carefully tighten self-locking Torx fastening screw T 20 with tightening torque 3 ftlb. (± 0.4 ftlb.). The wheel electronics should now be lying evenly against the rim. Removal 1. Clamp wheel. Diagnostic system: reading out fault memory and activating systems Special notes for tyre pressure monitoring system (RDK) 1253 |