After reading a bunch of other posts about problems with the 190E not starting I came to the conclusion that the fuel pump relay must be bad. Please let me know if I am correct or chasing ghosts. I am a bit new to working on fine German machinery, but I have rebuilt an engine here and there in my past.
Car won't start.
Had same problem before when wife let it run out of gas.
Before, put gas in and waited until middle of night and it started right up.
This time, it appeared that wife let it run out of gas again. Cheecked and it was low, but not empty. Put gas in and it started. Wife drove it to gas station and filled it up. Then it would not start again. Wife got it started after pushing it away from the pumps. Told her to drive it home. She decided to stop at WalMart for a taillight bulb. You guessed it, no start. I went to pick her up at Walmart. I got out and tried, no start. Told wife to let me take her home. She said she wanted to try one more time. I said no and kicked the right front tire as she turned it over and started it.
Parked it in garage so I could check filter and clean out junk from it running out of gas. I figured flow might be low. Poured a little gas in the air horn and it started and ran until it ran out of gas. I removed the fuel pump relay and jumped it and heard the fuel pump running. I replaced fuel pump relay and disconnected fuel line from injector distributor. Turned on ignition and tried to start, no fuel coming out of line. I removed relay again and jumped it briefly as gas shot across the garage to the far wall about fifteen feet away. This leads me to believe that the fuel pump and filter are fine and the relay is bad. Do you agree? I certainly hope so because I am medically too old to be doing all this and can't afford to have someone else do it right now.
Now then it appears that they chaanged the relay for 1985 and 86 to one with 9 pins 0015457805 with kickdown for AT according to relay that I removed. I see lots of 10 pin on eBay used for $15-30. I am not opposed to used but must I have thee 9 pin? I notice a part number the same as mine except wqith [2] in front that have 9 and 10 pin, which di I get or can I rebuild the one I have? I popped the cover off and it's just a couple relays, transistors and a couple ICs. Is there som ewhere I can get a schematic? has anyone tried one of the after market universal relays?
1985 190E Fuel Pump Relay Bad or Not? 
Linear Mode
