Quote:
| Originally Posted by schultz318 I have a 99 318ti, upon cold startup the engine idles fine when what sounds like the ac pump kicks in (very noisy). It last for approxmiatly 20 seconds then kicks out and everthing is normal. Only cold startups though, warm engine doesn't do it. I know it isn't the ac pump because I have the air off. I'm relatively new to the BMW so any advice or ideas would be greatly appreciated. Thanks |
My car is the same year and does the same thing in the mornings. It is the Throttle Body Heater. Next time you start your car in the cold pop the hood and stick your head by the TB and you'll see.
-Chad