Not just the coolant. My ex-son in law got an alternator for my daughters 528i from a salvage yard. He dumped all of the power steering fluid into it removing it. Ruined it.

Basically if your working with anything that could leak bag the alternator.

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Just BMW's - All cars and trucks was two pages long
1994 318is
1997 528i
2000 323i
2001 X5 3.0 auto
2005 X5 3.0 auto
2011 535xi auto
2013 X5 xdrive35 Turbo
More are at my website

Aftermarket E53 Radio Install