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#1
29th December 2010, 09:43 PM
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Help.....changed thermostat and now leaking coolant
Hi I just changed the thermostat on my A8....seemed fairly straight forward...and wasnt too difficult to do...however I now have a slight leak....and I dont know where it is coming from....
It is the 32valve engine....and the leak is on the driver's side near the front....the drip appears on the left side of the lower oil sump pan...any suggestions would be helpful.......as I have gone back over the procedure and cant see where i caused the leak.... I will take a picture and post it in the next day or so..... 
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#2
30th December 2010, 01:08 PM
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The only connections at the front are Top Hose, bottom hose and thermostat. On the passenger side is the reservoir the back has loads!!! The drivers side is the supply to the Oil cooler and the cooler itself.
I'll await your photos.
__________________
Conan (the Librarian) Watch it if you dare Currently, 2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block. 1997 4.2 A8SQ - the Projekt. 12 years and ongoing! 1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard 2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion. 2005 C5 Allroad 2.5TDi FE - Grey - Workhorse. 2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter. Previously 2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex 1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure. 1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex. 2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on. 1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8. And a list of non VAG going back 40 years before I saw the light. 
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#3
8th January 2011, 10:43 PM
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leaking coolant
I couldnt work out where the leak was coming from...so I decided to try the unthinkable...which was to put Kseal into the coolant reservoir and luckily it worked.....so far so good...in fact I think there was probably a leak in the head gaskets cos now the car is running really well.....
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