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Coolant leak (resivor probably MY 2000 996 C4)

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I just developed a leak from my coolant resivor. I know that this is a problem for the MY 99 / 00 996s. Can I drive like this for a while, I have approx 40 miles to the dealer I take it to.

Thanks for your help,


It just depends how fast it's leaking out I drove around for a month until I could figure out exactly where it was leaking from. I had and extended warranty on my 2001 C4 I want to make sure it was the tank and not a hose or something simple I could fix. I believe the bill was somewhere aroudn $650 dollars parts and labor!

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mine leaked for nearly a year before I had a new tank installed. In that time I used maybe a quart of coolant. Your situation could differ. I rarely saw any coolant on the garage floor, and at the most maybe a spot the size of a golf ball.

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Well mine leaked for a long time, drip.....drip......drip......drip for probably 2 hours. But all in all, it ws not enough to fill a saucer with coolant. (orange, I might add)

It stopped, I cleaned the garage floor and drove the car for a quick tip to the cleaners. Seems to have stopped. No burning coolant smell as one would expect. Also the reservoir seems to be 7/8 full, so I will keep my eye on things until I can get the car in for some service. I need to do sparkplug changes, I'm throwing a P1139 periodically and I need a new front bumper cover, so I will bundle it all together, had hoped I could enjoy the car for the summer and then drop if off for work afterwards... :-)

Thanks as always for your feedback!

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Mine leaked for a good 15K miles (Probably ~8 months)... then finally cracked (exploded). I drove to the mechanic after filling it with distilled water. The coolant system is 9 gallons (per manual)... and the reservoir holds only ~1 gallon, so plenty of coolant in system to drive 40+ miles when it finally goes.

It cost me $550 to replace the tank and refill coolant at an indy.

Edited by rcg412
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