I read the previous posts about the radiator problems here. I have an experience to share, and hopefully get a little guidance. My 2010 EX35 radiator sprung a leak this past summer at a little over 90K miles. Sounds like the same side as the others, too, passenger. I was on a trip at the time and it was at night, so I had to go to an unfamiliar shop to get it fixed the next morning. I think the radiator part was fairly straight forward, but they mentioned it would be a good idea to replace hoses and thermostat at the same time. Sounded reasonable to me, but it has been a nightmare ever since. They screwed something up either removing or remounting the new thermostat and it has leaked since then. I have pics of the screws and bolts they used to effect the repair if anyone is interested... I got tired of the leaking and refilling the reservoir and decided to take it to a local shop a couple weeks ago to get it repaired. About $600 later and much trial and error by this shop and it's still leaking. As info, it was ok for about 1 day. This local shop tells me there are three bolts that hold the tstat to the head. And, that if his first attempts to repair didn't work, the head can be removed and the holes filled and redrilled and retapped so the tstat can be properly attached. So, 1. are there in fact three bolts, 2. is the tstat mounted to the head (and not the block?), and 3. would his suggested repair be valid? I'm thinking I'll need to go to Infinity for this eventually. Anyway, any advice or help understanding this would be appreciated.