DISA replaced and rattling noise gone! potential disaster averted! - Bimmerfest - BMW Forums

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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 01-31-2009, 12:36 PM
dakarm dakarm is offline
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Location: Danville, CA
Join Date: Apr 2002
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Mein Auto: 00 M Coupe, 08 MCS JCW S1
DISA replaced and rattling noise gone! potential disaster averted!

I've had the rattling noise for a while and at first I thought it was the VANOS, but after further research and reading the 330i doesn't suffer from the VANOS rattling noise. I actually went as far as buying all the gaskets to do the VANOS seal replacement until I realized it was the DISA making the noise.

Fast forward to today:

Here are a few pics of the DISA removed from the car.

as it came out of the car. notice the pin has work itself out about 1/3 of it's length!!!!!

the flap was not perpendicular + like it should be and generally really really dirty.

close up of the pin... scary.

the flap had a lot of movement in it. about 1/4" before any resistance was felt. the new one was perfectly centered + and wasn't as easy to move as the old one.

Thanks again to bimmerfest for potentially saving me from having to pay for a new engine
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