I ahve a 1990 740 turbo and that has happend to me aswell. once after a cold start and once after driving highway speed for about 10minutes. I was told by some buddies that it couldbe wastegate, throttlebodt, o2 sensor, ignitions wires or water in the elctrics. I'm going to try throttle body cleaning, might as well get it done.
werd.

I have a 89 760t/i that does the same thing. Not enough to be a problem, just pesky. I had a 90 760t/i that would naturally get up and haul ass from acceleration to well over 100 with no hesitation at all. I think I need to replace the in-tank fuel pump and dread it but, again, pesky...
Any one else?

I have the same problem with my 760t. I checked the flame trap hoses and they seemed fine and I cleaned out the ICV to no avail. I was considering cleaning the TB next. I notice the problem when the car is cold but also (less so) when it is warm, it also seems to happen sometimes when I'm sitting at a stopsign for a few seconds and then take my foot off the brake even without touching the gas. Its a pain in the butt so please let me know if you happen to get it solved, I will do the same.
Blue760t

Hello Tim:

I've had that problem with my '89 760GLE-- usually a throttle body cleaning fixed it. If the butterfly is hanging up on deposits in the TB, then the throttle position sensor won't work correctly, resulting in symptoms just like yours. When the car is warm, the butterfly has cycled from open to closed several times, so it is less likely to occur.

It is worth a try-- it only costs a few bucks, assuming you replace the TB gasket...

Good luck!
--
Herb Goltz, London, Ontario, Canada '92 245 w/102K mi