This is my very comprehensive write up on how to install a heated seat kit into a 2000 740iL. The one I purchased, "Heizgerat Setzt II Seat Heaters", came from www.autowarm.com (eBay for $163 for both seats). I will tell about my opinions at the end of the write up, but for now - here is almost e. Hello all.. I have a question regarding the reclining seat retrofit.. I am underway with this project swapping the interior from a 01 750il to a 01 740il.. My question has to do with the wiring for the power source. I have the complete wire harness for the rear seat functions and it has wires cut at one of the connectors at what I assume is on the car side.
I have not fully completed this install, however I have tested the wiring setup listed below and my seats heated up very nicely. Supplies I used:-2000 328ci BMW seats with factory heat and the body side plugs (plus a short length of wire).-Two rear seat heater switches from a BMW e38/e39. These are cheap in ebay.. Heated seats (front) retrofit Heated seats (rear) retrofit. BMW wiring diagrams Cruise control disengaging (actuator replacement). rebuild E38 car/key programmable memory options (PDF) E38/E39 schematics and pinout diagrams Electrical system wiring diagrams (1995 BMW 740iL, PDF) Electronics incl. lights, displays, MFL, cruise, audio, PDC.