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Originally Posted by maronha
The X is going out today. After reading more here I see it could be a number of issues. It seems that alot of people have alternator problems which cause lots of problems. I do have an indy shop I use but I may just send this to the dealer for this one.
Any one ever do there own radiator change? Is doing this require any more skill than doing the brakes? If not I would like to do this myself as long as there are no special tools required.
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It does sound like a voltage problem as Weasel said. Most likely a battery. unless the system voltage is correct none of the on-board computers will act properly.
As far as the radiator. Not hard at all. If you did your breaks you can do your radiator. My '01 4.4 leaked in the same place yours is. Previously, it had leaked from the tank also.
Unfortunately, BMW is very proud of their antifreeze and charge accordingly for it. I would (and did) use the BMW fluid because of the possibility of clumping up the fluid if what you use is not compatible with the BMW fluid.
I purchased the radiator and upper and lower hoses from Europarts Direct (europartsdirect.com) for $432.89.