AS always hard starting cold 190e - Benzworld.org - Mercedes-Benz Discussion Forum

sheikh_kiran · 08-13-2007, 03:09 PM

Ok.... I have been through the forums and I have tried many of the posted responses, but I still am having the same issue. Here is what i have.... 1985 190e 2.3, it's my son's car. We replaced the engine a while ago woth a used one and it ran good for many months. Latley it starts so hard when it's cold. It will turn over but acts like it's not getting fuel. If you floor the pedal and turn the key it will start but it wont idle on it's own (I have to flutter the pedal to keep it running for about 2 minutes) once it warms up it runs fantastic, and if you shut it off and restart while warm it runs perfect.
We have replace the fuel filter and fuel pump. We have replace the distributor, coil, wires. We have check the fuse and relays behind the battery (I even put a new 10amp fuse in the one even though it wasn't blown). I thought maybe at first it was vacuum locked so I leave the gas cap off when I'm trying to start cold. I'm looking for any help anyone can give me. I'm brand new to listing questions here so if I have written too much I'm sorry. I want to thank everyone for their help in advance. I hope you can help us out. My son has had this car in our driveway for 4 months and he needs it for college. Thanks so much

**Jippi** · 08-13-2007, 03:23 PM

check the fuse on the ovp aka over voltage protection relay behind the battery if your in the us.

milosz87 · 08-13-2007, 04:24 PM

what would that look like??

**Jippi** · 08-13-2007, 05:48 PM

silver body red top with a clear lid its next to the ecu.

**Jippi** · 08-13-2007, 05:51 PM

i just re read your post sounds like the ovp relay itself is bad. you need a new one or you need to resolder yours. i had this happen during the winter months.

Ignatz · 08-14-2007, 02:33 AM

My 93 2.3 was taking longer to start for some time now. Once it started, everything was fine. But I knew I was using the starter more than necessary. Then a week or two ago it would'nt start and let me sit. I could get it going but it seemed to be starving for fuel. The shop replaced a hose at the Idle Control Valve and now it starts right up. Looking back my hose was cracked for sometime causing it to start hard and finally the hose broke or came off causing it to get towed.....$10 hose............its running great again.