D2 A8/S8 (1997 - 2003)
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Where is my coolant going?
Posted by: SteveKen (2259) on 2018-03-01 04:29:55

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It seems like my S8 is losing coolant at a rapid rate and I don't see any evidence of it below the car.

I's say about 2 quarts a week.

No evidence of the coolant bottle leaking.
Nothing near the heater core hoses.
I already installed the Bufkin pipe a couple years ago

I did see evidence of some pink crustys at the o-ring connection on the oil cooler housing, but it would be worse based on the amount I'm losing.

It's got 220k miles on it, so I'm thinking I've got a leaking head gasket, but I'm thinking that I'd notice in the performance.

I don't think I'm looking hard enough.

Any ideas?

My garage is tied up for a month or so with some 6MT conversions, so I'm probably just gonna keep topping it off until something drastic happens if it's a head gasket.
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