1984 MB 380SL, 1988 MB 560SL, 1983 MB 300CD, 1984 MB 300SD, 1985 MB 300
The check engine light comes on when I start my 89 560SL (74,0000) in the morning. After it heats up to normal, I turn the car off and the light does not come on again. It has been this way for about a month. What is likely turning on the light and why would it go out after restart (once engine is hot)? O2 sensor not right? Thanks!