There is the a blue plastic drain plug on the bottom of the radiator, and a 13mm bolt on the passengers side of the radiator to drain the block.

After fully drained and plug/bolt back in, remove the radiatir cap and black plastic bleeder screw from the expansion tank and fill her to the top with 50/50 mix of BMW coolant. (the blue stuff) Once filled to top where coolant is coming out of both the opening and the bleeder screw hole put the bleeder back in and start her up. If the coolant isn't streaming across the opening try backing the bleeder out a turn or so seeing if coolant comes out, then tighten again. Then hold the throttle (or have someone do for you) at about 2000 rpms and the stream across the cap opening should be solid. If so put the cap back on tight and you are done!

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"When you do things right, people won't be sure you've done anything at all" (Bender, futurama)

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X5 pics

RIP 4.6is.....

2003 4.6is