300SL (129.061) L6-3.0L (104.981) (1991)
Roll Bar Malfunction Indicator Lamp: Description and Operation
The malfunction indicator lamp (A1e29) is located in the left half of the instrument cluster. When the ignition key is turned to position two in the steering
wheel lock the malfunction indicator lamp in the instrument cluster comes on and goes off when the engine starts running as long as a malfunction is not
present.
If the malfunction indicator lamp continues to burn with the engine running, a malfunction is present.