E86 n52k engine

[Kevmac]

I need help with my sound generator I've removed both sponges and still no difference in sound, I'm I missing something ? 2008 e86 help kev xx

 

[lucasxdiniz]

You must be. From experience when both foams are out there's a lot of noise in the cabin. Maybe access the hole in the bulkhead through the cabin to see if there's something you missed?

 

[Smartbear]

I need help with my sound generator I've removed both sponges and still no difference in sound, I'm I missing something ? 2008 e86 help kev xx

I suppose it’s possible the diaphragm could be damaged, that would reduce the sound heard in the cabin :?
Rob

 

[Kevmac]

Checked bulkhead all seems ok just no noise very slight air noise nothing more. So frustrating x is the diaphragm in the round generator itself??

 

[Smartbear]

Checked bulkhead all seems ok just no noise very slight air noise nothing more. So frustrating x is the diaphragm in the round generator itself??

It is the sound generator, the air waves from the engine make it act like a drum and the resulting sound passes through the pipe/bulkhead.
It’s just the other side from where the pipe is attached with a jubilee clip.
Rob

 

[Smartbear]

It’s number 6 on here
https://www.realoem.com/bmw/enUS/showparts?id=DU52-EUR-03-2007-E86-BMW-Z4_30si&diagId=13_1173
Rob

 

[Kevmac]

It must be broke then unusual as I doubt there are any moving parts x

 

[Smartbear]

It must be broke then unusual as I doubt there are any moving parts x

The diaphragm moves, it vibrates :wink:
Rob

 

[Chris_D]

You also need to check that you have positive connections at both ends.
When I removed one piece of foam I thought it sounded dreadful until I realised I hadn't refitted the pipe correctly at the bulkhead.

 

[ph001]

Yeh, refitting the pipe properly in the bulkhead after removing the foams is quite awkward, I suspect its not located properly. You really need to get your head up behind the glove box on the passenger side with a torch. You can also get a clear view of it by dropping the fusebox.

 

[Kevmac]

Ok will have a retry cheers guys x

 

[Number5]

Kevmac. I've sent you a PM