Ambient Light Sensor: Service and Repair

61 35 688 Replacing Solar Rain/Light Sensor And Condensation Sensor







IMPORTANT: Read and comply with notes on protection against electrostatic damage (ESP protection).







Necessary preliminary work::
- If necessary, remove interior rearview mirror







For equipment specifications up to 09/2009:
- without 2-zone automatic air conditioning (optional equipment 534)
- without 4-zone automatic air conditioning (optional equipment 4 NB)
- with Head-Up Display (optional equipment 610)

From 09/2009 onward, considered standard equipment and thus not dependent on equipment specifications.







Disconnect plug connection (2).
Unlock metal spring (3) in direction of arrow.
Remove solar rain/light and condensation sensor (1) from windscreen.

Installation note:
Close plug connection (2) only after fitting solar rain/light and condensation sensor on windscreen.
Carefully clean windscreen in the contact area with the solar rain/light and condensation sensor. Remove all silicone residues.
Remove protective cover from the new solar rain/light and condensation sensor. The silicone-coated surface below it must not be touched.
Press metal spring (3) centrally to ensure that there is correct engagement in both hooks (5) on every side of the retaining element (4).







NOTE:
- Solar rain/light and condensation sensor is automatically coded by junction box.
- Carry out initialization to calibrate the rain sensor to the windscreen.