http://www.thectsc.com/
They sell:
- genuine ZF Lifeguard6, aka OE BMW fill, Oil No. 8322 0142516. $17 bucks
- a kit w/ filter (new oil pan) and 6 ltrs of Lifeguard6, $218
ZF Documented procedures:
http://www.thectsc.com/index.php?p=p...e_id=tech_info
our tranny, steptronic rear wheel drive = 6HP19
thank me later