Hey guys, I have an '95 C280 and recently Ive been having problems when trying to start it. Every one out of 3 times I start the car, Ill turn the key and itll take about 5-6 seconds for the car to actually start. A few times Ive had to get a jump start, and some times it has actually shut off on me when Ive come to a complete stop. I recently brought it in to a shop and had the Air Flow Meter changed, and their computer said something was wrong with my "Switchover Relay Valve." Could this be it? Could it be spark plugs/wires? The car has 160,000 miles on it and I doubt they have been change. The mechanic shecked it for me and said they weren't that bad. If anyone can help, itll be appreciated.
Thanks,

 

Just reposting, so I can be notified when someone responds.