BMW E46 Rough idle. Air problem?
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throttle body, very very easy to clean, probably the problem.
crazybiker420 1 week ago
@charli9111 check the vacuum lines
1800NoviceVillage 1 month ago
@alnpel Had some similar problems plus the rpm needle was fluctuating when the engine was idling. I got cheap on the repair and just removed the ICV and sprayed it with a brake cleaner. That did the job temporarily then after 2 days, I was back to square 1. Considering how much time it took to get to the ICV, I would recommend just replacing it with a new one. My car is a 325i 2001 model so after 10 years a new ICV is in order. Hope this helps. BataanBoy.
rednightist 1 month ago
the only fix for this is take it to someone. ANd make sure its someone who knows what there doing. We had a problem with ours doing weird stuff. Our check light came on when we went out of town to ohio. And stayed on the whole time we were there, and as soon as we hit alabama state line coming home to AL it went off. Took it to someone who worked on them alot but he still messed it up more Ended up paying around 1500 for something someone else messed up then paid for our problem!
Heatherenea93 1 month ago
@charli9111 Nope, changed MAF, even put a new kat in. I think it's the gearbox really... not sure what u call it in English... "transformer in gearbox"?
griffonsa 1 month ago
@griffonsa DID YOU FIND A FIX?
charli9111 1 month ago
HAS ANYONE GOT A FIX FOR THIS, AS MY E46 318i IS DOING THIS AS OF A WEEK AGO>>>
charli9111 1 month ago
@griffonsa I think u don't have to worry about it. Power brake works on air intake vacuum, so when u press brake it's normal to drop rpm's a little on such small engine. Same with the power steering. Imagine all the work 318 engine has to done under idle rpm's (braking, steering, lights, air ventilation, radio, AC....)
NinjaTTT 2 months ago
Disa adjustment valve
jwcarreira 3 months ago
just get new intake, or clean the sensor. I had exact same problem when my sensor got a bit dusty. It all went away.
Nismo200000007 3 months ago