Go Back   United Bimmer Community - BMW Forum > UnitedBimmer- Model Categories > E46
FAQ Members List Calendar Advertise With Us Mark Forums Read

E46 General discussion and technical help for 1999-2004 3 series cars.

Reply
 
Thread Tools
Old 10-25-2008, 06:59 PM   #1
theeuroguy

Name: theeuroguy
Title: United Newb
Status: Offline
Join Date: Oct 2008
Location: Maine
User not setup in Rate My Car.
Click here to set it up.
Your Ride: 2000 Volvo V70
Exclamation VANOS mechanical failures...

I recently attended a trade meeting and there was a very interesting guy there, selling these O-ring kits, and he had a whole table of various vanos units, on the table, in various stages of parts...
So I spent some time learning about his finds about BMW vanos pistons,
He claims every factory vanos system's pistons sealing o-rings are prone to this problem within 6000 miles, this means you bought your E46 brand new and cause you drive it everyday, you would not notice a small performance decrease each year?...I will tell you what I was impressed when I drove the guys car with a 100K on it, and the seal upgrade had been done, it was a 330 with a std, you could let out on the clutch in first without any throttle and the car would just want to pull away, also you could be on a steep hill in say 3 or 4 and let out on the clutch and be able to give it some throttle and come out of it, The problem lies in the o-ring material used in the pistons themselves, almost like the space shuttle!, wrong material!.
There are two layers of O-rings and inner and outer, if you remove the pistons you will notice some flat o-rings, hard and brittle, this is the outer layer, below that is one more, usually this one has cracked, these are replaced with a viton type seal instead of the inferior buna-n the factory uses, so before you shell out 500-1000 dollars to buy one, look into the option of a rebuild it yourself, they are pretty simple for the DIY, and the kit is cheap. There are no codes set for this, The GT1 cannot see it, it is a mechanical fault.
I will look thru my notes for the guy and you can call him yourself.
  Reply With Quote
Old 10-26-2008, 06:54 AM   #2
theeuroguy

Name: theeuroguy
Title: United Newb
Status: Offline
Join Date: Oct 2008
Location: Maine
User not setup in Rate My Car.
Click here to set it up.
Your Ride: 2000 Volvo V70
Here is the link www.Beisansystems.com
Make sure you check out his forum and engineering data.
  Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Dr Vanos M3Tuner BMW General Discussion 1 09-28-2007 07:53 AM
Cold Start and VANOS Knock? Mercenary(FH) E36 11 11-26-2006 05:01 AM
Vanos sound zeaq328i E36 4 05-15-2006 07:50 AM
changing a non vanos to vanos conversion cabrit E36 28 04-04-2006 01:59 AM
Vanos unit image daki77 E36 6 11-22-2005 08:41 PM


All times are GMT -5. The time now is 07:52 AM.

A vBSkinworks Design

 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright © 2005-2013 UnitedBimmer.com