[s-cars] Water leak - rubber hose under inlet manifold

Peter Golledge petergolledge at gmail.com
Tue Jun 12 15:59:49 EDT 2007


3/8" Silicone Rad hose works well on 10mm since it is a lot more pliable.  I
recall getting my supply from a commercial truck repair place.  

I've had some of this on the Turbo cooling line on a 200TQA for 8 years or
so. :-)

-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com] On Behalf Of J. Khang
Sent: Monday, June 11, 2007 6:13 PM
To: s-car-list at audifans.com; Paul Heneghan
Subject: Re: [s-cars] Water leak - rubber hose under inlet manifold

Paul Heneghan wrote:

> 1. Can I replace this with standard hosepipe, or do I have to buy the 
> Audi part?  The part number stamped on the pipe appears to be 034 121 
> 471 AP, but I'm having difficulty finding it in ETKA.  I think it's 
> item 27 on illustration 145-25 (AAN
> turbocharger/wastegate) called 'shorten  to 160mm'.
> The item above has no number, just a hyphen and is called N 020 262 1, 
> 'hose in coils of 5m' 10x3.5.

Paul,

I tried to get that part from my local Audi dealer and could not then tried
to get a short length cut off from N 020 262 1 and could not.

I ended up replacing it with 3/8" fuel hose and it's been fine. If you can,
use a 10mm hose as 3/8" (9.5mm) is just slightly too small and very
difficult to get onto the pipes. I struggled for a long time with it.

You might also find that there is rust in the system and it will need
flushing so get some G12+ coolant. In my case, the rust particles had been
stopped at the #5 cylinder end of the hose and forced their way through the
wall of the hose, puncturing it.

> 2. Is this a sign, that at 123K miles all my water hosepipes are on 
> the way out?

All the other pipes have still held fine so far at 146k miles.

Jonathan


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