Ruby Red Audi S2 Avant

[geneandbolly]

Thought my leak issues were solved when i changed some old hoses.... then my rad began to leak a week later

Replacement arrived so hopefully i can get it fitted this weekend.

aka "i fixed something on my old audi and then something else broke a week later"



that's old audis for you!!

[Michael S2]

Thought my leak issues were solved when i changed some old hoses.... then my rad began to leak a week later

Replacement arrived so hopefully i can get it fitted this weekend.

[Vorsprung durch Technik]

Just ticked over 200000 miles this week... these cars were built to last

Glad the cars all fixed now and running well.My AAN has just turned over 200,000 and like you say built to last. As i said a while back your cars a beauty and in that scenery looks fabulous.

[Vorsprung durch Technik]

[/QUOTE]

Mmm Very impressive detailed engine photo.

[Michael S2]

Just ticked over 200000 miles this week... these cars were built to last

[UrS4boy]

...I will have to up date my turbo coolant hose info post accordingly.

Done: http://forums.quattroworld.com/s4s6/msgs/72682.phtml

Added this:

"NOTE: Because of the different design of the S2/RS2 (ABY/ADU) water manifold (because of the radiator at the side of the engine, not the front like the AAN), the rubber turbo coolant return hose, while it has the same PN, N 0202621, it is only 73 mm long, not 160 mm like the AAN.

Here is a view of an RS2 ADU water manifold showing the different location of the outlet to the radiator and the more frontal location of the connection to the turbo coolant return hose (in this example, an after market fitting has been installed).

"

[UrS4boy]

Thanks Error, no going back once its cut. Surprised the kit does not come precut to S2 spec. For reference i cut mine to 75mm seemed about right.

My guess is the hose "kit" starts as 160 mm so it will work for the AAN as well. Turns out your 75 mm guess was excellent since the factory suggests 73 mm for the S2/RS2 (different water manifold than the AAN).

Looks like a non-stock fitting for this RS2 ADU (at the front end of the water manifold)

[UrS4boy]

AAN is longer, you need to cut it for the S2/RS2 application. Not sure why, someone measured it wrong when they were making the templates for the hoses I guess

I just asked Kate, she was on her lunch break at the parts department and she says that while the S2/RS2 hose PN is still N 0202621, the length for the S2/RS2 is designated as 73 mm, not the 160 mm of the AAN. Hmm... I did NOT know that.

I will have to up date my turbo coolant hose info post accordingly.

[Michael S2]

AAN is longer, you need to cut it for the S2/RS2 application. Not sure why, someone measured it wrong when they were making the templates for the hoses I guess

Thanks Error, no going back once its cut. Surprised the kit does not come precut to S2 spec.

For reference i cut mine to 75mm seemed about right. Also for those considering new hoses, the colour of my hoses is the classic OE black Roose offer, much nicer than the shiny black imo.

[Michael S2]

have never seen that colour before - it's superbaaaaad !!

cheers, i like it too

Whilst you were waiting for the hoses- you could have taken the towbar off, Mike

Its half off Tony

[Error404]

AAN is longer, you need to cut it for the S2/RS2 application. Not sure why, someone measured it wrong when they were making the templates for the hoses I guess

[Michael S2]

All sorted

Ended up cutting the hose. If i just left it, it would be curving around the metal return pipe. The gap is only about 30mm between banjo end and metal coolant pipe. (forgot to take photo).

Only thing that would explain it is if some water manifolds are different. i.e. my banjo is nearer pulleys (front) of engine, where as the photo you posted looks like the banjo is nearer the gearbox end (back).

Thanks for the help

Moving on... photos on location tomorrow (weather permiting)

[UrS4boy]

Turbo coolant line info including rubber hose PN

The hose that crumbled in your hand was NOT the correct hose. The original must have been replaced in the past. The correct PN for the hose is N0202621. I once ordered that PN (you normally can only get 1 metre lengths). This is what they sent (correct PN but wrong material - somebody screwed up royally somewhere):



Looks like what you had:



The proper hose looks like this one (all rubber, many layers, etc):



As detailed in the post linked below, the proper length is 160 mm so your new one looks about right:

http://forums.quattroworld.com/s4s6/msgs/72682.phtml

[Tonybolony]

Whilst you were waiting for the hoses- you could have taken the towbar off, Mike

[geneandbolly]

have never seen that colour before - it's superbaaaaad !!