Symptoms are, at the the traffic lights in drive, normal idle is 700 - 800 rpms. when i put throttle down, it goes to about 500rpms almost stalls and then pulls away fine again. it only happens at idle and not elsewhere. what can i check / do to fix this problem. i think it's afm (air flow meter) related, but i'm not sure and i've never mucked around / cleaned the afm before.

I searched through he old posts here http://www.bimmernut.com/forum/searc...d=531698&pp=25 but couldn't find much.