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#1
3rd January 2012, 07:34 AM
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Temp guage
Hi Guys,
Was driving yesterday and whilst sitting in traffic i noticed the temp gauge just going above 90. Only went up by a very little bit and soon as I started driving it went back to normal. Any thoughts on what this could be - im assuming thermostat. But i know that means a belts off job. Cambelt was changed at 80 something thousand miles and now is currently on 110,000. It was done by a main dealer so dont know if they changed thermostat and tensioners, etc, etc. Is it safe to drive until i next get the belt changed or do I need to get it sorted asap. Also vague price for cam belt change including thermo and water pump etc etc? Thanks guys
__________________
___________ Kunwar 2002 Audi S8 
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#2
3rd January 2012, 07:39 AM
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They ought to change everything else while they're in there but it's not part of the cambelt change job. Mine didn't get a water pump, but did have a stat
If it starts fluctuating regularly then get it changed early, but if it's getting up to temp and not then over heating it ought to be Ok to leave for now Prices fluctuate wildly - camspec in Crawley are good - depends which side of London you are? If the belt you have is that new I'd be tempted to retain the tensioners etc and just have belt, water pump and stat done and reduce the next change interval accordingly
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#3
3rd January 2012, 03:14 PM
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Hyjacking slightly....but conversely, my temp guage is not rising much about 60 degrees at the moment after being stuck firm at 90deg for the last 4 years. More noticeable now that outside temp is dropping, and the inside of the car is a little slower to heat up.
I assume this is suggesting the thermostat is close to jiggered? Can I leave until next service? Zip 2002 S8
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#4
3rd January 2012, 04:14 PM
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If it helps i have been running cold for 12 months. I'm not suggesting you leave it that long but as far as i'm aware it hasn't damaged anything and to be honest it dosen't seem to have made much difference to fuel.
http://forum.a8parts.co.uk/showthrea...t=running+cold Last edited by Dezzy; 3rd January 2012 at 04:17 PM.
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#5
25th February 2012, 01:46 PM
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Went to change the thermostat today but theres no way i can get the bolts out, i have already twisted one torx bit and started rounding off the inside of the head with another. The only way i can see to get these out now is with a cold chisel or i take the front end off to get an impact driver in there.
__________________
1996 A8 4.2 QS. Bose, Solar roof, um...um... rally sport towbar. Now gone to a new home as the Traders 8. Bright yellow bus o love.
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#6
25th February 2012, 02:11 PM
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I've got a set of screw extractors which dig their way into the damaged head and help remove a damaged screw/bolt - have you got anything like this Dezzy?
http://www.screwfix.com/p/screw-extractor-set/18643
__________________
Confidence is the feeling you have before you know better . . . .  Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange 2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee 20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble  Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble Audi A8L D2 4.2 Petrol with LPG - Ebony Black Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior and some other A8's A8L's and Mercs Last edited by Architex_mA8tey; 25th February 2012 at 02:13 PM.
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#7
25th February 2012, 05:00 PM
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You could try a bit of heat. not to much but heat and cool, heat and cool and you may get lucky.
__________________
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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#8
28th February 2012, 07:48 AM
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I don't have any extractors mate but i will be investing in some, i was looking at the spiral type too for rounded hex bolts but don't know if they'll grip a cheese head
I'll try a bit of heat first as i'm trying to do it with the front of the car on, I can't get a drill in there with out. I stopped as i needed te car this week. I was also thinking about running the engine to get it up to temp and then that freeze stuff on the steel bolt I just don't want to snap the head off, as i don't fancy tring to drill steel out of ali. Could i have the part numbers for the 2 off bolts for the thermo housing please as they'll be no good if / when i get them out.
__________________
1996 A8 4.2 QS. Bose, Solar roof, um...um... rally sport towbar. Now gone to a new home as the Traders 8. Bright yellow bus o love.
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#9
1st March 2012, 06:17 AM
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Quote:
__________________
1996 A8 4.2 QS. Bose, Solar roof, um...um... rally sport towbar. Now gone to a new home as the Traders 8. Bright yellow bus o love.
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#10
1st March 2012, 06:42 AM
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N 905 375 02
Hexagon socket oval head bolt (combi) M6X20 2 off @ £0.47 each
__________________
Confidence is the feeling you have before you know better . . . . Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange 2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee 20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble Audi A8L D2 4.2 Petrol with LPG - Ebony Black Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior and some other A8's A8L's and Mercs
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