Front Wheel Sensor, Replacement

Front wheel sensor, replacement
Special tools: 115 8147
Preparations
^ Ignition off.
^ Remove wheel.
Removing sensor





Note: Clean sensor and connector carefully before removing them.

^ Remove sensor mounting bolt and pull sensor out.
^ Remove connector.

Installing sensor





^ Clean sensor seat free of dust and rust so sensor ends up in right position relative to pulse wheel.
^ Brush any dirt off of pulse wheel. Use a soft brush.
^ Install sensor and tighten bolt to 10 Nm (7.5 ft. lbs.).
^ Install connector.

Installing wheel





^ Check that brake disc and rim contact surfaces are clean
^ Grease hub center guide for rim with anti-rust agent 116 1038-3.
^ Install wheel.
^ Install bolts hand tight. Then tighten them in star pattern to 110 Nm (80 ft. lbs.). If tightening with nut runner, use torque socket 115 8147.

Note: Tightening bolts in star pattern to specific torque settings is important to prevent stresses in the brake disc.

Operational checks





^ Read off any DTCs posted in control module and erase them.
^ Quit DTM by switching off ignition.
^ Test-drive car and check that ABS warning indicator goes out.
^ Read off DTCs and check that DTC 1-1-1 appears.
^ Quit DTM by switching off ignition.