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2003 AR 132k~ coolant leak

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2003 AR 132k~ coolant leak

 
Old 03-14-2012, 04:39 PM
  #11  
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Originally Posted by all(over)road View Post
Yeah, unfortunately 9hrs sounds right; that is book time....my guy did it in about 3-4 hours (paid him for 6 I think)

It's like doing a t-belt in that the front end needs to come off. Big PITA labor thang getting to it...as you know. Good luck !! Make sure they use a genuine Audi part.
I had my shop back home look up the labor on alldata which stated 7hrs. Nothing I can really do about being over charged though Jacksonville NC has it's own crazy market pricing.
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Old 05-23-2012, 09:07 AM
  #12  
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Massive loss of coolant directly caused by this failure:



It's the plastic thermostat housing - a crappy plastic pipe that joins the thermostat to the lower radiator hose. See that nasty nine-inch crack? Yeah, it nearly KILLED my engine!

I have no idea why such a innovative, forward-thinking company like Audi would use such a ***-backwards part. Call your friendly dismantler and replace with the 100% compatible B5 S4 all-aluminum part(the LAST ONE your 2.7 will ever need):



Here is how it looks on your engine(circled in yellow):



Installing this part should be done with full TB service. Otherwise, I was able to get it on in about 4hrs, by sliding the timing belt away from the Passenger cam pulley by 1/2":


Last edited by Zuffenhausen951; 05-23-2012 at 09:20 AM.
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Old 07-22-2012, 11:19 PM
  #13  
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Just a warning to those who are using VEMO t-stats on the allroad (or any other 2.7/2.8 that might have used the plastic thermostat cover).

I discovered the VEMO is about 1.5-2.0mm taller than the factory Audi/VW t-stat. This means when it's seated and you tighten the cover the top of the t-stat is putting pressure on the plastic housing. Eventually it'll crack.

My car has had a very slow leak since I bought it. Gradually it got worse. Since it leaked over the alternator I suspected the cover in some way. I found that during the one of the PO's maintenance procedures someone installed a VEMO stat causing my cover to crack and leak. Fortunately I bought an OEM one and it fit better in both the cracked plastic housing as well as fitted mint in the aluminum cover I picked up.

078 121 121 J is the alum
078 121 121 K is the plastic
078 121 113 F is the OEM t-stat (must order ring also)

Another tip - there was no way I could get the covers in and out around the t-belt without pulling the alternator and the alt mount off. Once those were out of the way it was a snap.


cheers!
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Old 03-29-2019, 03:08 AM
  #14  
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Kristopher,
read your post (from 6 years ago), I have a leaky thermostat housing. What intrigued me was that your post implies I can finagle the thermostat housing out from behind the timing belt if I remove the alternator. Am I reading that right, as I would love to avoid locking the cams and all that that entails?
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Old 04-13-2019, 10:07 AM
  #15  
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there was no way I could get the covers in and out around the t-belt without pulling the alternator and the alt mount off. Once those were out of the way it was a snap.
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Old 04-13-2019, 12:57 PM
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Originally Posted by aramko aramko View Post
there was no way I could get the covers in and out around the t-belt without pulling the alternator and the alt mount off. Once those were out of the way it was a snap.
Redtube Beeg Spankbang
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Old 04-15-2019, 04:23 PM
  #17  
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Originally Posted by aramko aramko View Post
there was no way I could get the covers in and out around the t-belt without pulling the alternator and the alt mount off. Once those were out of the way it was a snap.
Hey sorry for the late response - as you discovered, you have to take the alt/bracket off and the t-stat cover will come out w/o removing the tbelt.

Curious if your cover was plastic and cracked?
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