80q coolant flush/refill worry

[Matt Evans]

A car should not over heat on a non 50/50 mix of water/coolant, especially
if you've got more water than coolant.

Race cars run straight water. 

There's no need to play guessing games - decide what level of cold weather
protection you need, then buy a coolant tester and see where you're at.  Add
antifreeze until you reach the desired anti-freezing properties.


> -----Original Message-----
> From: quattro-bounces at audifans.com 
> [mailto:quattro-bounces at audifans.com] On Behalf Of Megan Bigelow
> Sent: Wednesday, September 01, 2004 7:08 PM
> To: quattro at audifans.com
> Subject: 80q coolant flush/refill worry
> 
> So I decided to flush and fill the coolant tonight on the ole 80q. I 
> drained/flushed it without incident, and then here's where I went 
> wrong. The bentley and the Audi coolant bottle called for a 
> 50/50 mix, 
> and bentley said the cooling system's capacity for that was 3.5L of 
> each water and coolant. Not realizing that there is still water from 
> the flush stuck in parts of the system, I measured out 3.5L of water, 
> added it, and then tried to (unsucccessfully) add the approx. 3.5L of 
> unmixed coolant that was in the new bottle of Audi coolant.
> 
> Oops. There was 1.5L of straight coolant still left in the bottle. 
> D'oh! And, upon letting the car idle until the fan kicks on, the 
> coolant light flashes, and it's definitely not low. So I think it is 
> overheating.
> 
> I guess this is more of an "I'm stupid" post than a question, but I 
> just wanted to run it by the list's collective knowledge that what I 
> need to do is drain and refill properly before draining and flushing 
> the whole system again and buying more coolant at the dealership 
> tomorrow.
> 
> Curses,
> 
> Megan
> 
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