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What is that noise when you open the driver door?

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Old 09-10-2008, 05:04 PM
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Default What is that noise when you open the driver door?

I've always wondered and I just did a quick search but couldn't find anything. Just for clarity, when you open the front door, there is an odd buzz. What is that for?
Old 09-10-2008, 05:58 PM
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If it's the noise I think you're talking about, I believe it's the fuel pump.
Old 09-11-2008, 07:37 AM
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Haha, I always wonder what that long buzzing sound is too!
Old 09-11-2008, 11:10 AM
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Default I posted that question last year - strong concensus was fuel pump...

Doesn't make sense to me b/c hear it if you open any door, (why pump fuel if I just need to grab something out of the back?) but what do I know...
Old 09-11-2008, 11:18 AM
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Default again, I'm not sure exactly what noise the OP is talking about, but I

only hear the fuel pump when I open the driver's door. My A4, A3, Touareg and Jetta all make/made similar noises and only when the driver's door is opened.
Old 09-11-2008, 11:34 AM
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I'm guessing its the driver seat, self adjusting to your setting?
Old 09-11-2008, 12:35 PM
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after some period of rest, any door opening will elicit a brief electric-motor-type (pump?) sound...
Old 09-11-2008, 12:36 PM
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(at least on mine..)
Old 09-11-2008, 04:26 PM
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Default Fuel pump -->

All the FSI motor equipped VW and Audi vehicles do this. It is to prime the high pressure pump(s) for the injection system.
Old 09-11-2008, 08:32 PM
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Default So the fuel pump is somewhere around the driver's seat?

That's where the sound seems to emanate from. Aren't most pumps in the tank or very close to it? (Yes, I have this sound too and have been wondering about it as well.)


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