Originally Posted by chemical_dreams

Hi, first off I would like to thank everyone who uses this forum for the info provided here, it has been appreciated. I recently bought a 1994 C280 which I totally enjoy driving, and cannot find some of the info I would like to on it.

I took my car to Aamco locally and they retreived 9, yes NINE, OBD II codes from the car. The tech said that they all seemed to be from a misfire in cylinders 2 and 5 so that left 7 emissions related codes. Here is my plan of action to remedy this situation:

1) Have fuel injectors cleaned, most places have told me they use a 3 step chemical process for ~$60. If this does not work then....

2) Tune-up ($400) OR there is a reccommended shop here in town that will examine the plugs, wires, coils, and anything else which could cause this problem and fix only that at labor and parts cost which specializes in MB cars.

Chances are that I will wind up doing both since the first step, IMHO, will not remedy this problem....but you never know.

I have not had the dreaded wiring harness issue yet nor do I know if it has already been replaced. This brings me to my only remaining issue with the car. When I turn my headlights on the right side turn lamps, both front and rear, are steadily on. During day time driving the turn signals both work fine. I read a thread here and replied then noticed it was almost 6 years old, talking about intermittent turn signal and wiper malfunctions being due to a faulty combination relay switch. Could this be the culprit here as well?

If any of you have a better plan of action or suggestions/concerns please feel free to voice them.

Thanks to all who read this post and much more thanks to those who take the time to respond!!

--Graig--