My 2006 Volvo S40 T5 AWD has 62000 miles on it-I have regular sevices on it. Last week the temperature gauge tipped over midway and then back and then back up again. (It was 91 degrees and I was n traffic but still) My coolant looked very low to me (you could barley even see it in the tank) I topped it off with the recommended 50/50 and havent had any problem with it. Until...lol.I drove to a friends parked in the driveway and came outside to find coolant in her driveway and then today 3 days after this episode I parked in my own driveway to find coolant running out from under the car. There is some evidence that coolant has leaked from the top of the tank (its on the lip edge of the coolant reservoir)I'm freaking out!! I am a single mom and this is our only vehicle. I would greatly appreciate any help. BTW I am the original owner of the car. Thanks sooo much!!