Nursing a 190E back to health. a few bugs left.

[xweezyx]

So I acquired a 1992 190E 2.6 a little while ago. I am convinced that someone put oil in the cooling system, because it shows no signs of head gasket failure. I fixed the cooling system and I am very happy with the results. I just have one problem that I feel like is specific enough that someone might know the answer right of the bat.

Car starts a little hard when cold. If you push the gas it starts up quickly, otherwise it dies, then starts up on the second try. I don't think this is related to anything else. The real problem is this...

It runs very well while warming up. Once it gets up to temperature, sometimes it will start hesitating on takeoff and idling rough. I have pulled over, turned the car off, counted to 10, then started back up and it runs great for the duration of the drive. Also, it tends to work itself out after some highway driving.

This seems like a computer or sensor issue, rather than a physical problem to me, but I don't know where to start looking. Vacuum seems a little low (16hg), but everything vacuum operated works and the transmission shifts smooth.

Thanks everyone! I'm hoping to be able to drive this car 300 miles and back around christmas.