Hi there! I have a 2000 Mercedes E320
with 179000 miles. Just recently had the plugs and wires changed and also the conductor plate on the trans. On a couple of occasions now when I'll be driving on city streets the check engine light would start flashing then stay on and my car would start loosing power like it was running on 3 cylinders. I would just pull over and stop, turn the ignition off, pull out the key then push in the key and start the car and drive off as if nothing happened. The check engine light would still be on and I get home and put my scanner on it and it would read error codes P0300,P0304,P0305, P0306 and P0150. I would clear the codes and the car would drive as if nothing happened. I've driven for many more miles until it happened again. And I would clear it the same way. I thought it my be my coil paks but the mechanic that did the tune up said if it was that the car would run rough all the time. Any suggestions????
JA: Does the light stay on, or does it blink?
Customer: The light would first start blinking then it would stay on immediately after that until I clear the codes.
JA: Are you fixing your E320 yourself? What have you tried so far?
Customer: No I have a mechanic that does all my repairs on this car. He's changed the plugs, wires, air conditioning compressor, conductor plate on the trans that was done 2 weeks ago.
JA: Anything else you want the mechanic to know before I connect you?
Customer: No I can't think of anything else right now.