The notorius e46 idle surge/stall problem

**thelemur** · 09-18-2003 10:51 PM

Ok, so i've been doing my research, trying to find a solution to my surging/dipping & stalling idle on my 5-speed e46.

I've seen a few hundred posts on this issue, mostly just people speaking up advising they too have the problem.

The only solution I see mentioned is something to do with the VANOS system, does anyone know if this is indeed the solution, and what part of the VANOS system was replaced?

My dealer doesn't seem to think there is a problem, and I'd rather get it fixed that go into the whole lemow law thing, but if they can't fix it, I just might have to go that route.

Sorry if this topic has been beaten to death...

~Dan

2001 330Ci 5-speed

**bach** · 09-19-2003 07:18 AM

**stephenjmak** · 09-19-2003 09:02 AM

Try a software download -- it worked for me. Do a search, print out a good description, and what the dealer did, and show it to your dealer.

Mine reloaded the software with an updated version into my '01 325, and it's been fine ever since.

chops · 09-19-2003 09:56 AM

Dan,

I just sent you an email. I too am experiencing this problem on my 2001 330ci 5-speed. I can't figure out a pattern, although, I do notice that it is hot outside and I have my AC on. Don't know if that is the cause.

This is a frustrating issue for me because I never know when it's going to happen (happens sporadically). However, it is quite dangerous, as 90% of the time it happens, I have the clutch in while making a turn. As far I know, the airbags WILL NOT go off if your car is stalled.

Interested in seeing your response, esp. about the lemon law part.

Thanks!

**thelemur** · 09-19-2003 10:08 AM

**thelemur** · 09-19-2003 10:09 AM

and im brining 12 printouts of similiar issues from this message board. If I find a solution, this board will be the first to know.

**thelemur** · 09-19-2003 01:54 PM

Ok, for visit #3 to the dealer, they decided to reprogram the DME with the most recent software. So far, It's been OK, and the idle hasn't dipped a hair below 700rpm. I will keep a close eye on it.

double vanos · 09-19-2003 11:57 PM

management software and significant problems will arise.

Unregistered · 01-31-2016 02:55 PM

Hey guys, I'm new to the forum but I'm having this problem too I made a YouTube video of what is doing if you guys wanna check it out and possibly give be done feedback on it.
Thanks Stephen

Unregistered · 01-31-2016 02:57 PM

https://youtu.be/mXWE0V14t0Q

Thread: The notorius e46 idle surge/stall problem
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