Weird exhaust tips rattle

[S3_Sanni]

Got a weird rattle going on with my exhaust tips towards the end, checked underneath but everything seems to be ok. Could anyone help? I've attached a video link too.

https://www.dropbox.com/s/dpju9gwhqqs8w2c/VID-20150621-WA0002.mp4?dl=0

 

[saq85]

Mine does the same thing. Dunno if there is a problem or its normal...

 

[S3_Sanni]

Mine does the same thing. Dunno if there is a problem or its normal...

Do you have a video of yours?

 

[nil538]

If it's a standard s3 exhaust could be the flap in the left hand tail pipe gone lose and rattling around

 

[S3_Sanni]

If it's a standard s3 exhaust could be the flap in the left hand tail pipe gone lose and rattling around

Its a bcs powervalve exhaust. Could that be the same case?

 

[nil538]

I don't know mate but definitely worth a look

 

[S3_Sanni]

I don't know mate but definitely worth a look

Will have a look into it. Thanks

 

[-Ju-]

It'll be the valve in the exhaust Sanni, had the same issue on my old 335i, only when cold mind went away when it warmed up

 

[S3_Sanni]

It'll be the valve in the exhaust Sanni, had the same issue on my old 335i, only when cold mind went away when it warmed up

Mine does it when warmed up too Julian.. Will it still be the valve in exhaust?

 

[-Ju-]

How far back from the end is the valve, can you see it or give it a rattle.
It is the only moving part in the exhaust so it's the most likely

 

[S3_Sanni]

We did check the exhaust on Sunday everything seemed ok to me. I'll p'm you now

 

[saq85]

N

Do you have a video of yours?

No I'll try and make one

 

[saq85]

here is my rattle, ignore the cat and dirty exhaust tips.

 

[S3_Sanni]

Very similar noise. Looks to be the same. Have you had a look to see what it could be?

 

[saq85]

nah, its been like that as long as i remember i thought it was normal lol.

 

[S3_Sanni]

Noise not bother you? Im getting it sorted this week hopefully

 

[saq85]

Noise not bother you? Im getting it sorted this week hopefully

It does now that you have made a thread about it. Let me no how it goes please?

 

[leshkin]

Noise not bother you? Im getting it sorted this week hopefully

Let us know how you get on and what the root cause was mate. I'm sure that I'm not the only one who wants to know more

 

[S3_Sanni]

Will get back to you on wednesday evening hopefully

 

[S3_Sanni]

So for the ones who have this annoying rattle!! Went down to BCS today and they checked the exhaust out. Turned out to be a spring inside the butterfly valve causing the metallic rattle sound. All fixed now and the noise has gone.

Had another noise i told them about - exhast hitting a small screw which was noticed today under hard driving. They also adjusted the exhaust for me so that doesnt happen again. Offered to pay but didn't take a penny!! Excellent service for them cant fault them one bit.. Exhaust sounds beautiful under full boost too