Here's a thread that should answer your questions: http://www.bimmerfest.com/forums/sho...d.php?t=404968.
Originally Posted by playahsofly
Please help. This morning when I turned on my engine everything is fine as normal. While I was driving to work of course the engine warm-up and once I almost got to my work place at the stop light my idle (RPM) is landed on about a little above half. I wanted to know where should the IDLE (RPM) suppose to land at/ position at.
The fact that when I first start my car I can't feel any vibration, but once the engine is warm up or drove for a while at the stop with my feet on the brake, I can constantly feel the vibration. On the other hand, when I let go the brake the idle went a little down then went back up when I put some gas on it. Also I can see a smoke coming out of my muffler (is this normal)? the temperature is about 75 F.
Please let me know guys appreciated the help and supporting the BMW FAN.
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2008 535i - Monaco Blue/Tan Leather, Sport, Premium, Cold (+ heated rear seats), Navi, HUD, PDC, CA, Sunshades, Fold down rear seats, CPO, Extended Maintenance