1992 Mercedes-Benz 300E Q&A

1992 Mercedes-Benz 300E Question: Cold start valve

Problems with starting. Replaced distributor cap, rotor button, spark wires, spark plugs and crank shaft sensor but still having starting problems and car running rough. Suggestions. Thanks -
Answer 1
make sure the o-ring under distributer cap is not worn. check to see if wet inside and any wear on the o-ring. -
Comment 1
Thanks. My mechanic in addition to changing the above parts had to change the idle control valve. No more rough riding and car is starting up and running tops. -
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The cost to have the cold start valve replaced. Hard to start when cold and idles a little ruff.
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