Do you have a owner manual for this car? Why does check engine light come on? on 2001 Mercedes-Benz ML320

Do you have a owners manual for the mercedes benz ml320 2001 model? Check engine light comes on quite often, even though no emission problem exists. Make suggestions,

1 answer
Hi, I suggest a diagnostic to find out what codes are stored. Then diag those codes. How do you know that no emission problems exists? Try my shop gl Ted