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Old 04-29-2005, 11:29 AM
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Default Somebody with a Bentley>>

Can you tell me the location of the brake booster check valve? Dealer hasn't replaced the one that they think is making noises yet, but I finally had somebody else start the car for me and it made the noise. Sound came from right up front, almost dead center-ish. Sound right for the placement of that valve? or are they thinking kaka again?
Old 04-29-2005, 11:36 AM
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Default Not sure but hope this helps.

I don't know much about brakes at all.. but I looked at the brake section for our cars:

the only "valve" they list on there is Part 16 connecting to Part A. I combined the images for viewing. hope this helps josh.

<img src="http://images9.fotki.com/v174/photos/5/558330/2123654/brakebooster-vi.jpg">
Old 04-29-2005, 11:44 AM
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Default thanks. i think dealer/audi helpline is full of it this time. no way that noise was coming from>

the firewall. idiots... but thanks for digging that up
Old 04-29-2005, 11:47 AM
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Sure, NP. Picture A is actually right next to the firewall though.
Old 04-29-2005, 11:50 AM
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Default right, but my noise wasn't even near that. it was like it was coming from the radiator fan>

or something like that. in that area anyway. nowhere near the brake booster/cylinder. i thought these people were supposed to be trained professionals? they heard the damn noise and still think it's that?
Old 04-29-2005, 11:54 AM
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Josh, what does it sound like?
Old 04-29-2005, 11:55 AM
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how about a diagram of the right front wheel bearing assembly?
Old 04-29-2005, 12:00 PM
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Default You're replacing your front right wheel bearing, right?

In that case, www.alldatadiy.com might be a good place for you.. since it has walk thrus and pictures

on www.alldatadiy.com, unfortunately, I only have the 2000 ATC stuff.. and i'm not sure if there is any difference wheel bearing wise between the 2000 180QC vs. 225
Old 04-29-2005, 12:06 PM
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stuck pig. ssscccrrrreeechhh. starts out high, drops down lower. about 3 or 4 secs.
Old 04-29-2005, 12:07 PM
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Default yeah, and I assume they're the same...

even the rear bearings in the quattros are the same part number as the front from what I looked up earlier. I'm mainly just wanting to see an exploded diagram so I know exactly what I'm getting into tonight.


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