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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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  #1  
Old 01-02-2012, 01:09 AM
Johann Snyders Johann Snyders is offline
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Location: South Africa
 
Join Date: Dec 2011
Posts: 2
Mein Auto: BMW 325i E46
Cool Vanos Seal replacement on 325i

On 30 December 2011 I decided to replace the Vanos sels on my ride. I had the seals as I bought them over the internet from Beisans Systems.

With the step by stem guide on my laptop, neatly placed in the engine compartment, I started with the replacement at about 17h00 the afternoon. My wife called be for dinner at about 19h00 and byby 21h00 I was finished with the entire job.

It was not as difficult as I thought it would be and must also compliment the procedures manual from Beisans, they did not leave out any details.

I decided to replace the seals because the car has 210 000 km on the clock and during the last couple of weeks it behaved stanged. First it would have a irregular idle speed on cold start up's in the morning and then sometimes it will loose power for no particular reason.

So far so good, I'm still running it cautiously and can therefor not comment on any significant power gains.

My advise to anyone attempting this Vanos kit replacement would be to take your time, dont rush it and work neat. It is not difficult to do, it only takes time.
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  #2  
Old 01-02-2012, 05:36 AM
Y2K_Bimmer Y2K_Bimmer is offline
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Location: Glendale, AZ
 
Join Date: Mar 2011
Posts: 427
Mein Auto: 2000 323i
thanks for the tips, going to do this soon...
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  #3  
Old 01-02-2012, 10:39 AM
VP VP is offline
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Location: Plainfield, IL
 
Join Date: Nov 2011
Posts: 107
Mein Auto: 2003 325i
Very encouraging. I am looking to do this in the spring. 105k miles. Don't know of the previous owner did much of anything. Thanks for the report.
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  #4  
Old 01-02-2012, 10:44 AM
steveninchicago steveninchicago is offline
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Location: Plainfield, IL
 
Join Date: Aug 2010
Posts: 168
Mein Auto: 2003 325i
VP, as we have the same car and live in the same town, definitely give me a shout out when your ready to tackle this!
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  #5  
Old 01-02-2012, 10:49 AM
VP VP is offline
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Location: Plainfield, IL
 
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Posts: 107
Mein Auto: 2003 325i
Holy Cow Steve! Too funny! What part of town are you in?
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  #6  
Old 01-02-2012, 10:21 PM
marlin1881 marlin1881 is offline
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Location: Colorado
 
Join Date: Jun 2008
Posts: 937
Mein Auto: 2003 330i ZHP
Quote:
Originally Posted by Johann Snyders View Post
... My advise to anyone attempting this Vanos kit replacement would be to take your time, dont rush it and work neat. It is not difficult to do, it only takes time.
Very good advice. I did the seals and rattle kit on my ZHP, and it took me 5 hours on a very nice Saturday. Organize everything you take apart, as there are a lot of pieces. Agreed, in that it's not a difficult project, but it is time consuming.
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  #7  
Old 01-02-2012, 11:39 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 21,106
Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by Johann Snyders View Post
I'm still running it cautiously and can therefor not comment on any significant power gains.
You won't be able to measure any signification power gains at home:
- How to objectively test VANOS seals in operation (1)
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