Brought my 00 e320 in for a service(Brakes,rotors,air filter,feul filter,oil change
and run codes for check engine light.Shop called me and said all set.Got in the car and drove away.Car would not go over 20mpr and running awlful.
Seems it was running on 3 cylinders,with check engine light blinking.Brought
back to shop to re run codes,Cylinder mis-fire,.Tech feel its the 02 sensor now.Can this be?(should have gone to the dealer)Please advise!