Help! - Coolant Leak somewhere under the Turbo or on engine block

[Fat Audi 80]

Help please: I am experiencing a slow loss of coolant which appears to be coming from the area under the turbo. It looks like it is running down the block under the exhaust manifold, but the source is impossible to see. It is then covering the oil filter below in coolant. I have tried to eyeball the source of it but it is impossible without tearing into the engine bay.

Can anyone offer a suggestion of what is going on before I start stripping parts off to try and find it? Could it be the coolant feed to the Turbo?

Any suggestions welcome.

Thanks,

Steve

[Colesy]

Probably is the turbo water feed, the metal hose has a rubber end that plugs in above the oil filter, so probably leaking from there, or the gasket on the bottom of the turbo could have gone but it would normally drip from there rather than running down to the oil filter.

No 23 here: 034121497A
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[Error404]

I agree, check the turbo water feed from the blood clots nipple. I have a good one here surplus to requirements if you find need one mate

[Fat Audi 80]

Thanks chaps, that sounds likely. Which way is best to go in? Top down or bottom up?

[Henkjan]

get her up on a ramp I'd say

[s2driveruk]

Yep mine did it from 23 too, if you are lucky it wont need the ferrule on the pipe replacing, luckily i had a spare

[Fat Audi 80]

Thanks David. How invasive is this work? Should I try it on Saturday before Beaulieu on Sunday?

[Fat Audi 80]

get her up on a ramp I'd say

That will be axle stands on my back then!

[newsh]

Have a look from the top First, the feed is quite high up

[Error404]

If it is the turbo water feed, yes its basically right above the oil cooler thermostat housing, to the front of the engine mount leg/bracket.
There is a spring clip on the block end and a 17mm nut on the flare/nipple fitting to the turbo

Access is not to bad from underneath; you can't get to the turbo union from the top, but you should be able to peek in to have a look.
If you do need to change it, its not too bad. You should have it done in a couple hours, allowing for tea & barring any complications

[treebirch]

If you still can't trace the leak buy some UV dye and a UV fluro' lamp on Amazon, stick the dye in the coolant reservoir and go for a 10mile drive, once back in the garage (assuming the car has gotten hot), get the lamp out and all will be revealed!

[Fat Audi 80]

If you still can't trace the leak buy some UV dye and a UV fluro' lamp on Amazon, stick the dye in the coolant reservoir and go for a 10mile drive, once back in the garage (assuming the car has gotten hot), get the lamp out and all will be revealed!

Thanks

[UrS4boy]

Help please: I am experiencing a slow loss of coolant which appears to be coming from the area under the turbo. It looks like it is running down the block under the exhaust manifold, but the source is impossible to see.....Any suggestions welcome.

Sorry, I missed your initial post. Most likely the turbo coolant "union" at the block:



REFERENCE: http://forums.quattroworld.com/s4s6/msgs/72682.phtml (Turbo Coolant and Oil Feed and Return Lines)

[mac2226]

Help please: I am experiencing a slow loss of coolant which appears to be coming from the area under the turbo. It looks like it is running down the block under the exhaust manifold, but the source is impossible to see. It is then covering the oil filter below in coolant. I have tried to eyeball the source of it but it is impossible without tearing into the engine bay.

Can anyone offer a suggestion of what is going on before I start stripping parts off to try and find it? Could it be the coolant feed to the Turbo?

Any suggestions welcome.

Thanks,

Steve

Hi Steve did you find the leak? My friends has decided to do same thing leak under the turbo some where,soon as he’s took it back home lol I even checked it over before he left he only noticed a little puddle as he back into his garage and realised.

[Fat Audi 80]

Sorry, I missed your initial post. Most likely the turbo coolant "union" at the block:



REFERENCE: http://forums.quattroworld.com/s4s6/msgs/72682.phtml (Turbo Coolant and Oil Feed and Return Lines)

Thanks, that is exactly what I am looking for.