I have a 5 spd e39 that shakes till the point where it wants to turn off when I first start it. It happens every 30-40 seconds when the car is cold...but after it reaches about 1/4 way warm,. it stops shaking....it only happens when cold. There are no codes or check engine lights. I searched a couple of threads and saw some stuff about a bad maf sensor, but not sure.
Any suggestions..

dont worry its just the german engineering doing its job

could be a number of things. probably a bad cyclone filter.

dont worry its just the german engineering doing its job


:rolleyes

im not trying to be ignorant i love bmws, just search cold start issues

im not trying to be ignorant i love bmws, just search cold start issues


I did with no luck..

you sure?
http://i77.photobucket.com/albums/j45/fxx123/dvfgdfgdg.jpg

you sure?
http://i77.photobucket.com/albums/j45/fxx123/dvfgdfgdg.jpg


Yeah but none of these answered my question as far as an e39 goes..

In that case, the most likely candidate would be a small intake leak or bad CCV. Possibly agravated by a contaminated MAF. A cold engine requires a richer mixture and it doesn't take much of an intake leak to cause a problem that will go away after the engine heats up.

i have that same damn problem. from what ive been searching the past couple of days for my 00 328ci is that it is a dirty icv(idle control valve) that needs to be cleaned or replaced. search for that you should find more info.

http://forums.bimmerforums.com/forum/searchbt.php?s=&search=e39+cold+start+problems

Yeah I guess that a vacuum leak would trigger the CEL, what if you drive the car, does it feel sluggish ??

Yeah I guess that a vacuum leak would trigger the CEL, what if you drive the car, does it feel sluggish ??


Nah, not really,..