In Reply to: Early 535i A/C conversion, drier question posted by Bruno on December 13, 2000 at 13:18:40:
I wanted to change the drier on my 535i to a R134 compliant one (64 53 8 390 469), but this one comes with a safety pressure switch (64 53 1 390 070) with 4 wires.
The old drier had 3 switches attached to it and 2 wires for each switch. I will end up with 6 wires in my old fixture and 4 in the new one...
Anyone knows what I am talking about? This only applies to the E34 before 2/89.
'89 535i and a pile of spare parts.