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KentV

Coolant Tank Leak

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Boxster '00 S.

I pulled into my garage this evening after driving 10 miles and had a puddle of water directly below my coolant reservoir. It was dripping while I watched (as best I could).

I filled it to below the max line just this morning. I did so because the coolant showed 1/4 inch below the minimum line.

Is there an overflow tube there?

Sound like a leak. I replaced that tank 4 years ago. Sheesh

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Boxster '00 S.

I pulled into my garage this evening after driving 10 miles and had a puddle of water directly below my coolant reservoir. It was dripping while I watched (as best I could).

I filled it to below the max line just this morning. I did so because the coolant showed 1/4 inch below the minimum line.

Is there an overflow tube there?

Sound like a leak. I replaced that tank 4 years ago. Sheesh

Kent:

There is an overflow tube that runs from underneath the drain hole which at 9 o'clock when looking at the coolant cap (with the thin black plastic cosmetic cover removed), goes through the rear firewall and is then routed to an area just inboard of the right rear wheel well. The overflow will usually end up dripping onto the ground just inside the right rear wheel.

Since you just filled it, I would first check whether any coolant has indeed overflowed by pulling the small black plastic cover off (after removing the coolant cap and the oil fill cap).

Here is a photo of where the drain hole is located (disregard the other labels):

post-6627-0-35460600-1301544585_thumb.jp

Regards, Maurice.

Edited by 1schoir
  • Upvote 1

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Boxster '00 S.

I pulled into my garage this evening after driving 10 miles and had a puddle of water directly below my coolant reservoir. It was dripping while I watched (as best I could).

I filled it to below the max line just this morning. I did so because the coolant showed 1/4 inch below the minimum line.

Is there an overflow tube there?

Sound like a leak. I replaced that tank 4 years ago. Sheesh

Let us know what you find, I did mine about two years ago, I was hoping it would last at least ten.

Paul

Edited by pkust

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Boxster '00 S.

I pulled into my garage this evening after driving 10 miles and had a puddle of water directly below my coolant reservoir. It was dripping while I watched (as best I could).

I filled it to below the max line just this morning. I did so because the coolant showed 1/4 inch below the minimum line.

Is there an overflow tube there?

Sound like a leak. I replaced that tank 4 years ago. Sheesh

Kent:

There is an overflow tube that runs from underneath the drain hole which at 9 o'clock when looking at the coolant cap (with the thin black plastic cosmetic cover removed), goes through the rear firewall and is then routed to an area just inboard of the right rear wheel well. The overflow will usually end up dripping onto the ground just inside the right rear wheel.

Since you just filled it, I would first check whether any coolant has indeed overflowed by pulling the small black plastic cover off (after removing the coolant cap and the oil fill cap).

Here is a photo of where the drain hole is located (disregard the other labels):

post-6627-0-35460600-1301544585_thumb.jp

Regards, Maurice.

Maurice, That is a great picture and a great reference. Thanks for posting.

KentV, if the radiator cap doesn't end in 03 or higher you definately need to start with the cap and replace oit.

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post-34415-0-73464200-1301945332_thumb.j

Mine did this same thing last spring... it ended up being a crack in the seam on the bottom of the overflow bottle in the trunk. It resulted in a tow to the dealer for replacement.

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