300E won't start

Asked by Oct 19, 2013 at 11:00 AM about the 1989 Mercedes-Benz 300-Class 300TE Wagon

Question type: Maintenance & Repair

Left on vacation for a week and returned and car wouldn't start.Checked fuel pressures,
spark, vacuum leaks, by passed fuel pump shut relay.Sometimes in the past it would be
hard to start if it was wet. changed plugs and cap.Spark at the plugs

1 Answer


Double check your leads, in my experience just because the lead creates a spark at the plug doesn't always mean a good spark, and fuel needs a good strong spark. Even the slightest split in the lead is a weak spark, change em. It may however be nothing at all to do with the leads. Are yopu getting good fuel delivery to the injectors? Any signs of damp around the fuel head, the gasket sandwiched between the 2 halves can deteriorate. You can strip this part but it's not advised, there's a lot of fiddly stuff in there.

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