how to check stored engine codes on 1989 300E?
 

Anyone know how to made tye check engine light blink any stored codes for a 1989 300E? I found hte diagnostic connector up by the battrey but don't find any buton to push as on newer models.

Yes I did an archive search but don't understand any of them to apply to a 1989 model

Thanks!:cool:

The methods that I described in the DIY article on evaluating engine controls apply here.

Thank you, Steve! Didn't think of looking there!