Help! car overheat

AudiVTanon. · 02-06-2007, 07:37 PM

I was coming off the highway and was losing power. Lost heat also on the way home, it was like 0 degrees. temp gauge works occasionally and was at like 2 o'clock, not good. Coming down the off ramp car shut off, was able to coast to park n ride. Coolant cap had been shot off under the hood and coolant was everywhere. Went back today and tried filling the resevoir, 50/50 pentosin and water. didnt start and coolant was pouring out from under engine. im pretty sure this isnt looking good. just bought a coupe so not that bummed, but would be nice to know whats the deal. thanks for any help..

AudiVTanon. · 02-06-2007, 07:46 PM

fwd

A6Gary · 02-06-2007, 08:11 PM

If it was very cold, then you might even have a leaking/failed freeze plug. Since it leaks when you add any liquid, it should be fairly easy to find the source of the leak.

AudiVTanon. · 02-06-2007, 08:41 PM

i tried to follow all the hoses, couldnt really see. where is the freeze plug located? could it pop out and thats where the coolant is running out of? how big of a job is that

Quattromond · 02-07-2007, 02:37 AM

So then correct me if im wrong but if a rupsured hose or freeze plug was the fault then that would be where the pressure goes so how could it still blow off that cap.

I would suspect something like a bad waterpump that stoped circulateing the coolent, which led to it overheating and then because of that it blew something apart. Does this sound logical?

4Driver4 · 02-07-2007, 04:42 AM

If a car overheats quickly and dies, like if a hose bursts, you are generally luck to have damage confined to the head gasket and head.

If the car overheats slowly like with a gradual leak, the bolk gets super hot too and the bearings take a beating.

Sounds like your situation is the latter.

AudiVTanon. · 02-07-2007, 05:03 AM

could the cap have melted off? there was partial melting around where the cap screws on, and it wasnt lost it was sitting right there on top of the resevoir. im getting it towed today, so we'll see

AudiVTanon. · 02-07-2007, 02:49 PM

was told that its seized and the engine is finished. anyone looking for some parts? it has navy cloth seats which are hard to find. anything else anyone is looking for let me know. dont have much long with it, couple days but i can do my best.

islingtonaudi · 02-07-2007, 04:15 PM

VOoDOoGTX · 02-07-2007, 04:38 PM

02-06-2007, 07:46 PM	#2
AudiVTanon. New Member Garage is empty, add now Join Date: Jul 2006 Posts: 62	1992 100s fwd __________________

02-06-2007, 08:11 PM	#3
A6Gary AudiWorld Super User Garage is empty, add now Join Date: Jan 2003 Posts: 5,389	Obviously you have a ruptured hose, radiator, or something else broken in the coolant system..... If it was very cold, then you might even have a leaking/failed freeze plug. Since it leaks when you add any liquid, it should be fairly easy to find the source of the leak.

02-06-2007, 08:41 PM	#4
AudiVTanon. New Member Garage is empty, add now Join Date: Jul 2006 Posts: 62	Re: Obviously you have a ruptured hose, radiator, or something else broken in the coolant system.... i tried to follow all the hoses, couldnt really see. where is the freeze plug located? could it pop out and thats where the coolant is running out of? how big of a job is that __________________

02-07-2007, 02:37 AM	#5
Quattromond Member Garage is empty, add now Join Date: Aug 2006 Posts: 375	If the coolent reserve cap was blown off, then the car had pressure to do so. So then correct me if im wrong but if a rupsured hose or freeze plug was the fault then that would be where the pressure goes so how could it still blow off that cap. I would suspect something like a bad waterpump that stoped circulateing the coolent, which led to it overheating and then because of that it blew something apart. Does this sound logical? __________________ 2002 BMW 325xi, 97 A6 quattro, and 98 Acura integra.

02-07-2007, 04:42 AM	#6
4Driver4 Tech Guru Garage is empty, add now Join Date: Oct 2002 Posts: 32,392	Engine is toast. If a car overheats quickly and dies, like if a hose bursts, you are generally luck to have damage confined to the head gasket and head. If the car overheats slowly like with a gradual leak, the bolk gets super hot too and the bearings take a beating. Sounds like your situation is the latter. __________________ 4Driver4 Growing old is mandatory; growing up is optional. 2005 A6 Sedan Q 3.2 (wife's whip) 2000 A4 Avant Q 2.8 (daily driver) 1980 VW Scirocco (mid-life crisis car) 1983 Mazda RX-7 (revolutionary sports car) 2003 Mini Cooper S (just because) 1995 Mazda Miata, Superdupercharged(anti-Audi) 1999 Mazda Miata SSB (track beotch, no plate) 2003 GMC Yukon Denali XL (the anti-earth) 2004 Dodge Dakota (hey, at least it's stick and 4x4)

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02-07-2007, 05:03 AM	#7
AudiVTanon. New Member Garage is empty, add now Join Date: Jul 2006 Posts: 62	Re: If the coolent reserve cap was blown off, then the car had pressure to do so. could the cap have melted off? there was partial melting around where the cap screws on, and it wasnt lost it was sitting right there on top of the resevoir. im getting it towed today, so we'll see __________________

02-07-2007, 02:49 PM	#8
AudiVTanon. New Member Garage is empty, add now Join Date: Jul 2006 Posts: 62	yeup. donefor was told that its seized and the engine is finished. anyone looking for some parts? it has navy cloth seats which are hard to find. anything else anyone is looking for let me know. dont have much long with it, couple days but i can do my best. __________________

02-07-2007, 04:15 PM	#9
islingtonaudi AudiWorld Super User Garage is empty, add now Join Date: Feb 2005 Posts: 3,652	5-speed or auto? __________________

02-07-2007, 04:38 PM	#10
VOoDOoGTX AudiWorld Senior Member Garage is empty, add now Join Date: Jan 2007 Posts: 1,484	will the 100 hood fit on the A6? __________________ 1987 Porsche 944 turbo 1996 A6 Quattro - Still going AIM-VOoDOoGTX

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02-07-2007, 04:38 PM
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