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318touring

Coolant leak from middle of engine

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I was checking under the car and saw drops of coolant from the middle-ish of the engine (see attached picture). The car hasn't been used for the last week and a half. The bolt next to the text in the picture was damp, also up the engine block based on what I can feel, and it was coolant.

Car is 2003 996 C4 TipWhat would this be?

nxuucl.jpg

Edited by 318touring

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There is a hose that runs either under or alongside the engine from the waterpump outlet to the Tiptronic in a Boxster -- I assume the 996 is similar.

I would follow the trail to see where it is coming from -- the leak is probably small and is travelling to the lowest point before

dripping below.

m

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Waterpump and thermostat (low temp) changed a couple of months ago.

The drips were from the other side of the engine where h20 pump is located.

Reading through what Google comes up seems that it might be AOS?

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AOS. It has coolant lines going to and from it and plastic fittings. If you get under the car and look up from there you will see it and the coolant lines. Needs to be replaced.

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Thanks Joe, that was what I thought.

Sending it to the dealer tomorrow to get confirmed, I told them to spend an hour max looking for the cause.

Car is not being used regularly anyway so it's not a hurry to get fixed but I like to know why.

UPDATE: the dealer put the coolant system under pressure for 2 hours, and ..... no leak. They didn't charge for anything, and I'll mark this solved and keeping an eye on the car.

Edited by 318touring

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