A4 (B7 Platform) Discussion Discussion forum for the B7 Audi A4 produced from 2005-2008.5

Potential coolant leak?

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Old 07-02-2007, 12:03 PM
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Default Potential coolant leak?

When I was backing my car out yesterday morning, I noticed a goodsized puddle of liquid under the car, it looked like coolant. I checked the coolant level and it was at the minimum. I drove the car around because I had no choice, and checked the coolant level yesterday night and again this morning. It doesn't look like any more has leaked out, and I can't find any source of a drip under the car. Anyone have any idea what this could be? Is it possible for a leak to seal itself?

Also, on a "lighter" note, my hoen city lights burnt out again, which, by my calculations, means they last an average of 2000 miles (or 300 miles if you count the time they're actually turned on).
Old 07-02-2007, 12:58 PM
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Default Had a leak fixed under warranty

My '05 2.0T had a coolant leak this past winter. I noticed a little wet spot on the driveway one morning, then nothing for a while, so I didn't think much of it. After about a week, I noticed the coolant level had gone down a bit in the tank. I couldn't actually see it leaking, so I put it off again. A week later, the coolant light came on so I took it in to the dealership. They said there was some loose plug in the engine block, so they replaced it. It's been fine since.

It seemed to leak only after really cold nights.
Old 07-02-2007, 01:19 PM
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Default A common problem usually involving the plastic coolant flange on the back...

of the engine. This caused a very slow leak on my 2006 2.0T. My flange was replaced under warranty with a part of the same flawed design. No improved part available as far as I know but I am told they are working on one.
Old 07-02-2007, 01:51 PM
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I had a leaky flange; fixed under warranty
Old 07-02-2007, 03:10 PM
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Default I had the same issue

As with the others a flange at the back of the block of the 2.0T. Fixed under the warrenty and no problem since.
Old 07-02-2007, 04:46 PM
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Thanks for the quick feedback. Going to take it into Rector tomorrow.
Old 07-03-2007, 09:50 AM
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are you sure it is not condensation from the a/c?
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