another 360/408 over heating

I will say again. PUT A PRESSURE TESTOR on the radiator system. If it wont build pressure you can't increase your boiling point. if you can't increase your boiling point. You are always going to overheat in this case. Start with the diagnosis first instead of being a parts swap-er. Harbor Freight sells a test kit I believe 63862. It is worth having this on hand. It fits so many models and can be just as important as a compression test sometimes. Buy it on one of their savings days to save even more.

I've had mine for years and have used it more times than I can count. Fathers vehicle, brothers, tractor. and so on. I used mine just the other day on the wife's X5. I found that the overflow tank had a leak. Saved me more money than this tools costs in just one outing. do you know what BMW shop time costs?