Removing the Lambda oxygen sensor and the monitoring oxygen sensor for cylinders 1 to 4
- Unlock connector (1) and detach.
- Loosen the cables from the clamps.
- Release and remove the control sensor (2) with the special tool 0 491 074 (11 7 020) .
- Unlock connector (3) and remove.
- Release the cable from the clamp (4).
- Release and remove the monitoring oxygen sensor (5) using special tool 0 491 074 (11 7 020) .
