This is a really old thread... but hey, I used the SEARCH and this is what I got.

I have an 86 230E W124 with the M102 engine.

Last night -- no start. I pulled the Fuel Pump Relay and jumped pins 30 and 87. It still wouldn't start.

I jumped pins 30 and 87V. Started. Ran normally and got me home.

This is similar to Ron Johnstone's experience.

BTW, I jumped the pins on the relay itself, and plugged the relay back in its socket. With the jumper between 30 and 87, I got all the warning lights on the dash lit up, but the key was on OFF. It still won't start.

With the jumper between 30 and 87V, I hear some clicking noises in the relay box area -- and the car would start and run normally.

Thanks to this board, I learned to carry a piece of 'jumper wire' in my ashtray just for failures like this.

My Fuel Pump Relay is probably similar to that used on the 190E's.
Part #001 545 90 05
Says "Kaltart Steuerung"
Has pins 30, 15, 87, 50, TD, 30, 87V and TE.

Should I have just jumped 30 and 87 and left the FPR off?

I'm thinking of building my own Fuel Pump Relay -- has someone done this before? Schematics would be nice.

Thanks in advance,

Johan Limcangco
Manila, Philippines
79 350SE
86 230E
http://www.geocities.com/johan01.geo
johan01.geo@yahoo.com