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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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Old 09-09-2012, 09:43 PM
james0013 james0013 is offline
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Location: USA
Join Date: Sep 2012
Posts: 1
Mein Auto: 2008 E90 328Xi
strange window problem on a convertiable

Hi guys wonder if you can help me here, I went to look at an E46 330ci 6 speed manual. I have been searching for one for a while but cannot find one in the Seattle it looks like itís not a popular combination.

This car had a curious fault:

Firstly when you open the passenger door the window does not drop the small amount the drivers door does so that you can close it and it will seal with the ragtop properly.

Secondly when you used the button that raises and lowers all 4 windows. It would lower them all fine but the passenger side on would not come back up It was the same story when you hold the button down to raise the top when bringing it up. I had to use the specific button for the passenger side window.

Any clue what could be causing this? My main question is could it be expensive to fix? Clearly the regulators are working properly, my guess would be some fault behind the switches that control the windows?

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Old 09-10-2012, 07:09 AM
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jvr826 jvr826 is offline
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Location: In the woods. Santa Cruz County, CA
Join Date: Apr 2002
Posts: 8,975
Mein Auto: 05 330ci 6MT
Most likely it's the window regulator which is a common problem on the E46. You can look in the WIKI for info and links to DIY articles on how to fix it so you understand what the problem is. You can also search the archives now that you have some terms to use.

The reason you're not finding many 6-speed manuals is because the "luxury" market segment prefers autos. Because of this, you may need to be more open minded and relax some of your requirements. One that I would never give up on, however, is the 6-speed manual part. Many do and regret it.
Jeff R.
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"You drive like old people $#@%... slow and sloppy!" - George Carlin
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Old 09-10-2012, 07:32 PM
QAfred QAfred is offline
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Location: Panhandle of Florida
Join Date: Aug 2008
Posts: 919
Mein Auto: 328i, 330ci, R1200C
Since I understand the window is functioning just fine with the passenger window switch it rules out the regulator as the issue and means you have an electrical problem.
All the functions you describe go through the GM V (GM5) module behind the glove box. Probably one of the relay's in that module is worn out. The relay activated by your passenger door switch is functioning....the relay that is suppose to energize when you open the door and lower the rag top is the one that is stuck, corroded or just gone bad. Mechanical relay's do fail, even those we put on fighter aircraft.

Search GM5 and you will find a lot of info and read this:

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