Can anyone help with this split hose?

[s3speedpluscomfort]

Hello experts

This hose has split in my s3 and it cant be bought individually from AUDI. It comes with two other hoses and clips that I don't need if I buy directly from them and costs over €100.

I have it removed and was wondering can I use 4mm ID silicone hosing similar to that used for the n249 bypass?

Also what does this hose do?

Thanks for looking and hopefully somebody can help

 

[superkarl]

That goes to the n75 valve, which controls wastegate opening and subsequently boost. Just get silicon the same internal diameter, it should flex enough to fit nicely

 

[rhubarb4]

Would that be 4mm ID then as I'm looking to change mine

Thanks Chris.

 

[superkarl]

I'm not sure of diameter. Youl be needing proper 3 ply silicone too at least, not vac hose. It gets hot round there.

 

[ja3mie]

looks bigger than 4mm to me, but as Karl sad, its pretty flexible so should be able to get it to shape

 

[S4 Muzza]

You can pick up a replacement on ebay along with a DV hose for £24 delivered
AUDI S3 TT LEON CUPRA R BAM AMK N75 & DV BOOST HOSES | eBay UK
They might sell you the N75 hose individually if you email them, but for 24 quid you may as well just take both!

 

[superkarl]

Lol forget what i said, get the above! I had no idea they wer that cheap

 

[s3speedpluscomfort]

You can pick up a replacement on ebay along with a DV hose for £24 delivered
AUDI S3 TT LEON CUPRA R BAM AMK N75 & DV BOOST HOSES | eBay UK
They might sell you the N75 hose individually if you email them, but for 24 quid you may as well just take both!

You my friend are an absolute legend. Thanks very much, that's exactly what I needed. I have now ordered them.

 

[S4 Muzza]

Glad to be of assistance! I fitted them a few days ago, they're a perfect fit so only took around 30 mins

 

[Sam_]

I got the same ones in black. Seem pretty well made. The bracket needs slight bending to get the DV one in but that's to be expected as it's a little larger.

 

[talentwalsh]

Thats a top notch find Muzza

 

[<tuffty/>]

You need 6mm silicon... 4mm is too small

<tuffty/>

 

[dplovin]

If you look on the Audi parts for sale on here mate someone's selling both hoses brand new £15 delivered in black