1991 Mercedes-Benz 300E Q&A
1991 Mercedes-Benz 300E Question: check engine light
you have a problem either in the instrument cluster or in the wiring. either way, you will need a good local MB shop to diagnose this for you. - overbys
What is the procedure for resetting the check engine light
My '92 300e with 134k miles has a persistent rough idle. changed fuel filter, but it didn't help. What could be wrong?
Failled the smog check because check engine light is not working at all
Any ideas?? Check engine light won't stay off. Have spent $3K to twice repair the emissions...