I have a 2005 XC70 which occasionally leaks coolant on the right side. Normally it leave only a small amount on the driveway but today was different. This happens after it has been driven around town but not after every trip. There is a pipe the sits just behind the bumper, above the puddle. Does anyone have a sense as to whether this is the result of too much coolant in the system or something bigger. The puddle today is about 12" in diameter. Normally it is about 2".

 

Fun stuff. Estimate is around $900. Wish I had the time to do it myself. The process probably hasn't changed much since I replaced the radiator on my parents 1971 145S in the mid-80s, right?

 

Don't know about a 2005 since mine is a 1998. On mine there is nothing over that far that concerns the radiator. The windshield washer bottle is above that area. The coolant resevoir bottle is on behind that area. I wouldn't think the design would change to drasticily over the years since the body style has pretty much stayed the same. Have you been adding coolant to the car since you have been noticeing the small leak area?

 

There was a hole in the radiator on the lower left. I didn't have time to replace it myself so I had a mechanic do it.