Cooling Fluid Leaking Out During Winter Storage - Cadillac XLR Forum: XLR and XLR-V Forums
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post #1 of 2 (permalink) Old 06-16-2016, 05:14 PM Thread Starter
Join Date: Aug 2009
Posts: 28
Thumbs up Cooling Fluid Leaking Out During Winter Storage

I store my XLR in a storage bag with chemical bags that absorb moisture out of the bag and I also keep a trickle charger attached to the battery in my non-heated garage in Ohio from Nov 1 through May 1st. For the past 2 years, when I took the car out of the storage bag, I found a puddle of cooling fluid (12 inch diameter) in the bottom of the storage bag. When I start the car up there is no leaking anymore but I get the message that the car is low on coolant and I add more coolant. Has anyone else had an issue like this? I'm wondering if the coolant reservoir hoses don't contract when the garage gets real cold and then when the garage warms up around May 1st that the plastic hoses expand to eliminate the leak. Thanks for any feedback on this. I'm thinking about putting a garage heater in and if I do, what is the temperature you recommend keeping the thermostat at?
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post #2 of 2 (permalink) Old 06-18-2016, 08:40 AM
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Join Date: Mar 2008
Location: New England '13 XTS Platinum
Posts: 1,087
Getting the cooling system pressure-checked and finding the source of the coolant leak might be cheaper than heating an entire garage for the winters.

If you do have an intermittent leak, it probably won't get better -and could get worse when you least want it to. If it were me, I'd concentrate my efforts on eliminating the source of the leak.

For winter storage, I've used dessicant containers that deposit the accumulated moisture in a reservoir that can be emptied and re-charged if necessary, keeping the humidity in the interior nice and low. Dumping the water always gave me a warm fuzzy feeling the setup was doing its job. --That was in WA where the air is always heavy with moisture. Here in New England, winter weather is accompanied by very low humidity, so it isn't a problem.

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