200, there are redesigned versions of both caps. The m20 motor uses the 1.40 cap and all the others use the 2.00 cap. But if you have an old cap you might be entitled to a new redesigned cap from bmw, since a lot of people didn't bring their car in for the recall years ago. Your 850 is also on the list.
95 E34 530I V2.37
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Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
My 1995 m50 has the 200 cap. I think it was replaced with my radiator last fall. Should I be using a 140 cap?
Thanks,
1995 525i Auto, M50TU 2.5L, EAT chip, 1/95 build, USA, 205/65/15 tires, ASC+T, HID, lumbar, EC Mirror, BMW Alpine 5 radio with BMW-Pioneer CD Changer, abt 236k miles, Oxford Green/Parchment