This only happens once and a while. The engine will just quit. The tach goes to zero and all the dash lights come on. After a few minutes or so it will start and run fine again. It could run a week or a day then do it again.
I have the two fuse OVP and cleaned all the connections on the pump relay and OVP. I've head MB's are known for this problem. Anyone know where to look for this problem??

Hi!

The fuel pump relay is a common cause of this problem. Even though you have cleaned the terminals, the relay itself may have failed. My car did this exact same thing a few years ago, and this was the fix.

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Streetside: 1987 Mercedes 300E Petrol Blue/Green
2014 Ford Mustang Grabber Blue
1999 Ford Ranger Green

Dockside: 1968 Eltro 17
1985 Silverton 34C

That's what I have been thinking. Is it solder joints like most of the MB electronic in these cars? I was going to try resoldering all the joints and see what happens.

The fuel pump relay - had identical symptom and the FPR cured it.

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1986 300E (3/2002) Rear ended and totaled (10/2009)
2000 Xterra (5/2000)
1992 400E (11/2009) -Sold
1986 300E (12/2009) - Sold
2004 E500 Wagon (6/2013) - Sold

+1

I always keep a spare fpr and ovp in the trunk...but when it happened to me it turned out to be the crank position sensor.

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1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


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