Coolant level warning
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AudiWorld Member
Joined: Feb 2008
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Coolant level warning
FYI - If you get this - get it in to the dealer asap..
I thought I was dealing with a small problem as the coolant level warning only came on when cold and went away as soon as the engine warmed. I eventually took it down to the dealer and they wanted to keep the car, gave me a nice Allroad as a loaner..
First update was a leaky o-ring on the thermostat - but they needed it over night.. ended up two nights...
First notes were: Rubber line to T-stat pin hole and is leaking/pressure testing/ lifted car found coolant leaking from rubber line to t-stat, removed t-state to remove and replace leaking line, filled coolant system and test drove..
Then the other notes were a little more concerning:
Coolant lines to turbo hardened and leaking / pressure tested / cooling system holding pressure. Performed visual inspection found coolant filling the valley between cylinder heads. Found coolant lines to turbo leaking. Removed and replaced coolant line seal and oil line seal to turbo. Filled cooling system and test drove..
Anyone with a mechanical background want to comment on that one? (S7 is 13 months old)
I thought I was dealing with a small problem as the coolant level warning only came on when cold and went away as soon as the engine warmed. I eventually took it down to the dealer and they wanted to keep the car, gave me a nice Allroad as a loaner..
First update was a leaky o-ring on the thermostat - but they needed it over night.. ended up two nights...
First notes were: Rubber line to T-stat pin hole and is leaking/pressure testing/ lifted car found coolant leaking from rubber line to t-stat, removed t-state to remove and replace leaking line, filled coolant system and test drove..
Then the other notes were a little more concerning:
Coolant lines to turbo hardened and leaking / pressure tested / cooling system holding pressure. Performed visual inspection found coolant filling the valley between cylinder heads. Found coolant lines to turbo leaking. Removed and replaced coolant line seal and oil line seal to turbo. Filled cooling system and test drove..
Anyone with a mechanical background want to comment on that one? (S7 is 13 months old)
AudiWorld Super User
Joined: Dec 2011
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From: Honeoye New York USA
Then the other notes were a little more concerning:
Coolant lines to turbo hardened and leaking / pressure tested / cooling system holding pressure. Performed visual inspection found coolant filling the valley between cylinder heads. Found coolant lines to turbo leaking. Removed and replaced coolant line seal and oil line seal to turbo.
Coolant lines to turbo hardened and leaking / pressure tested / cooling system holding pressure. Performed visual inspection found coolant filling the valley between cylinder heads. Found coolant lines to turbo leaking. Removed and replaced coolant line seal and oil line seal to turbo.
You may of had a defective hose since if heat was the cause, there would be many more reports of coolant leaks.
AudiWorld Member
Joined: Jan 2004
Posts: 356
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I would be concerned too. First reason is that Audi is using rubber cooling lines in a high temperature area. Second reason is that all S6/S7's are going to have the same result.
You may of had a defective hose since if heat was the cause, there would be many more reports of coolant leaks.
You may of had a defective hose since if heat was the cause, there would be many more reports of coolant leaks.
Thread Starter
AudiWorld Member
Joined: Feb 2008
Posts: 479
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It's been fine since - I wouldn't worry about it unless you get a coolant level warning- and then I'd get it in the shop pretty quick.. I drove it for a couple of weeks just thinking it was low when it was cold, but then the coolant warning light would go off as soon as the fluid warmed up and expanded.
AudiWorld Member
Joined: Jan 2004
Posts: 356
Likes: 3
It's been fine since - I wouldn't worry about it unless you get a coolant level warning- and then I'd get it in the shop pretty quick.. I drove it for a couple of weeks just thinking it was low when it was cold, but then the coolant warning light would go off as soon as the fluid warmed up and expanded.
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