Bzzzzzzzzz *tick*

[pixl]

What is causing this noise? It's not a problem, I'm just curious.

If you get into your car and turn the accessories/auxillary on, you'll hear the noise. My first thought was the fuel pump. But yesterday, when I was cleaning my car, I had both doors open and the key was in the ignition but everything was off, I heard the same noise. WTF? Can't be the fuel pump if it's not on. Then again this morning, I walked out to my car, beeped open the door and as soon as I opened the door, I heard the noise again.

Same noise, three varying times. It appears to be random. Any ideas what it could be?

[Golf Houso]

What is causing this noise? It's not a problem, I'm just curious.

If you get into your car and turn the accessories/auxillary on, you'll hear the noise. My first thought was the fuel pump. But yesterday, when I was cleaning my car, I had both doors open and the key was in the ignition but everything was off, I heard the same noise. WTF? Can't be the fuel pump if it's not on. Then again this morning, I walked out to my car, beeped open the door and as soon as I opened the door, I heard the noise again.

Same noise, three varying times. It appears to be random. Any ideas what it could be?

easy...

Flux Capacitor charging up...

[shhplit]

i hear this noise as well everytime i unlock my door and open the door!

[sports racer]

You wearing those wind up jocks again?

You know what the Judge said last time you wore them..........

[Timbo]

Can't be the fuel pump if it's not on.

YOU know it's not on...but does IT know it's not on?

[RhysQ]

could be the air vents opening up.
next time you start your car... put it in reverse and see if the same noise happens again (blocks fumes from coming in the car when reversing). then put back to neutral and listen again. if you hear the same noise it may be the air vents opening/closing up. i'm pretty sure they close up when you lock the car.

apart from that it could be the start up process: AFAIK from when you open the door after unlocking the car goes through its own start-up with fuel pumps and other things. when you open the door something starts up, and then when you put the key in and turn to auxilliary, something else starts up. gets the little beastie all ready to go before even turning the ignition on. pretty cool IMO

[kelvniii]

As i know that is a fuel pump, it happens on my Golf MK4 and Polo GTI

[DaveMack]

Yep ... fuel pump. There's a time lag involved. If you open the door immediately after getting back (from a drive) ... it doesn't do it. I don't how long the actual delay is, but after a certain time, opening the door activates the fuel pump to charge.

Dave

[mr_walker]

easy...

Flux Capacitor charging up...

What is 88mph in km/h anyway?

MARTY!

[brumue]

If a fuel pump makes a sound but no body is around to hear it, does it really make a sound?