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So I've scoured the forums for answers and checked as many of the possible answers as I could find, but I'm still coming up empty. Here is my issue: I recently got a used 2006 Smart CDI Passion Cabrio. I've noticed that some water was collecting under the carpets in the foam underlay. It's in the rear, between the metal engine cover and the foam above it, plus under both the driver and passenger seats - mostly around the feet area and towards the middle part with the e-brake and ignition. It's not wet between the back and the front (behind the seats) or the very front (where it slopes up on the driver side or around the battery well on the passenger side). I thought it might be a rain leak issue with the rear of the Cabrio not closing properly, as it had been raining pretty hard for a couple days. But after drying out the foam and testing it the next day - totally sunny - I had new water under all three areas. So I thought it might be the A/C, so I dried it again and turned off the A/C completely - the fan set to 'o', the intake set to from outside>inside, the heat set to the very middle point, and the a/c switch off. No rain that day either, still fresh water. I took out the foam piece covering the battery well today to check if it was the A/C drain pipe leaking, and there was no sign of water anywhere near that area - it was quite dusty still - and I couldn't even locate the A/C drain (the only pictures I can find are 451's or locked behind a pay wall at evilution). If it matters, the water does not smell like anything and my windshield washer fluid is full. Does anyone have anything else I could test? I'm running out of options and getting awfully tired of drying out the car every day. If the A/C is the problem, I don't need it, and I just want a fix that will stop the leaking.

I removed a couple of hoses from my 2006 CDI. I did this to make space to remove the intercooler. But when I disconnected the hoses, a liquid came out, which it seems like water with coolant. Does this type of car uses water as a coolant? If so, were shall I add water to replace the one drained from the hoses???? Thanks for you help.