ABS/DCS - Warning Lamp ON/Code 30 or 31 Set
SI B34 04 05Brakes
June 2005
Technical Service
This Service Information bulletin supersedes Service Measure B34 201 03 dated June 2004.
SUBJECT
Rear Wheel Speed Sensor Corrosion, Fault Code 30 (1e) or (1f)
MODEL
E53 (X5)
SITUATION
ABS/DSC Light On with Rear Wheel Speed Sensor Fault Code 30 (1e) or 31 (1f)
CAUSE
Corrosion in Rear Wheel Speed Sensor connectors
CORRECTION
Check Rear Wheel Speed Sensor Connectors for any corrosion.
PROCEDURE
1. Replace the corroded Rear Wheel Speed Sensor, Part Number 34 52 6 756 380 (see Repair Instruction 34 52 535).
2. Remove the Black Retaining Clip from the Female Connector.
3. Carefully disassemble the Cable Leads from the Female Connector (Please note the Pin assignment for reassembly)
4. Inspect for any corrosion and clean it as necessary
5. Apply Nyogel 760G Connector Grease (part number 83 23 0 392 297) liberally on to the contact areas of the Female Connector.
6. Carefully reassemble the Cable Leads into the Female Connector (note the Pin assignment).
7. Reinstall the Black Retaining Clip into the Female Connector.
8. A Sealing Strip Part Number 61 12 0 302 953 may be applied on top of the Female Connector as an added protection.
NOTES
If damaged, the Female Connector can be replaced with Part Numbers 61 13 1 392 246 (Housing) and 61 13 0 005 199 (Socket Contact with Seal and 50cm Cable).
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