TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

Need some help with a part number: hose from the N75->wastegate

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Old Apr 21, 2006 | 12:26 PM
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Default Need some help with a part number: hose from the N75->wastegate

I spent over 30 min with the parts guy trying to figure out which hose in the ETKA diagram actually corresponds to this hose on the car, and we eventually decided to order one and see if it's right. Does anyone have the correct part number for this hose, as I'm still unsure about whether we identified the correct one. Having the correct part number would be very helpful in the event that we ordered the wrong one today.

On a related note, would it be possible/acceptable to replace that hose with a regular piece of vacuum hose that has the same inner/outer diameter, or would it be better to use the oem part? Thanks!
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Old Apr 21, 2006 | 04:48 PM
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model year?
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Old Apr 21, 2006 | 05:26 PM
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2001...engine code AMU (225hp motor with ESP)
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Old Apr 22, 2006 | 10:09 AM
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Default ok, form what i can gather...you need to first tell me whether the part on the car...

was two hoses with a union, or just one hose. depending on that, you need either the appropriate #49 or #50.
<img src="http://www.modifieda4.com/images/tt-parts/tt_225_chargeaircooler_1.jpg">
<img src="http://www.modifieda4.com/images/tt-parts/tt_225_chargeaircooler_2.jpg">
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Old Apr 22, 2006 | 10:49 AM
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Default that's the diagram we were looking at yesterday

it's a single hose, which makes me think it's #49. The only thing that doesn't make complete sense is that other forum members who have replaced this hose have noted that it's an inexpensive part, but the dealer's price guide said it's ~$100 IIRC!
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Old Apr 22, 2006 | 11:03 AM
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Default yup i just checked 8L9145718F on 1stvwparts.com, $100.

your last resort is to get a PN off the hose you have. what does it looks like? is it grey silicone? (like the n75 hoses im familliar with)
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Old Apr 22, 2006 | 11:13 AM
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Default yeah it just looks like standard vacuum hose

any thoughts on whether I could just use a generic hose instead of the audi part?

thanks for all your help!
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Old Apr 22, 2006 | 11:31 AM
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Default is it grey? because he N75 hoses im familliar with have one ID at one end and

another ID at the other end. i.e. its not just a hose, its an adapter of sorts.

if yours looks like the grey hoses attached to the N75 in the pic below, and you give me the length of the TT hose, i can cross reference a part number from another audi that may work.

<img src="http://www.modifieda4.com/images/pancake-valve/DSC00962.sized.jpg">
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Old Apr 22, 2006 | 12:20 PM
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Default I'll have to go take another look at it

but I believe the hose is black. also, getting the hose off to measure it is going to be a bit of a challenge.
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Old Apr 22, 2006 | 12:38 PM
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why do you need to replace it?
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