Hi. I am replacing the expansion tank in my 2004 BMW 330XI. Got everything out. Pulled out the bottom clip & disconnected the coolant level sensor. But man o man I cannot budge the tank. Any tips shy of dynanite? Thanks,
Moved to E46 forum
Shogun tricks and tips for the E32 series are HERE!
Do yourself a favor and buy the expansion tank bracket. It’s not that you won’t get the tank off, it’s that the bracket is in need of replacement after all the years and heating/cooling cycles. You’ll sleep better at night, too.
^^^this^^^!
Just a quick couple of questions about the coolant level sensor (I have a 2002 325xi, so OP and I have essentially the same car; mine is a manual). I recently bought a new one and it came with a black sheath over it. The old one I pulled out had no sheath over it. Do I keep the sheath on? And when I plugged in the new sensor, the wire didn't "clip" into place like it's supposed to. I examined the new sensor for possibly missing that little plastic tongue that allows the pig-tail to clip into place, but it isn't missing any plastic. And the pig-tail appears undamaged as well, yet I can plug and unplug the coolant level sensor with ease, without having to press on the pig-tail at all. I can just pull it right out. And my coolant level sensor light is on I think because of this. But I can't be sure since the wire doesn't feel like it seats fully. Every time I open my expansion tank, the bauble comes up to indicate it's full, so I doubt it's ACTUALLY low on coolant.
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