Power mirrors, the electric seats with lumbar support, heated seats, the tilt/slide sunroof and the door lock heater. Hover or tap a row to see where the wire goes.
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The joystick reverses the polarity on the drive lines; the L / R selector picks which mirror's motors get it. Both mirrors share the two common lines and are grounded on pin 4.
Redrawn from BMW ETM 5116.0 (05/99), standard petrol E36 (316i–328i); diesel and M3 parts are left out.
Each seat motor sits on a pair of wires: the switch feeds one and grounds the other, and swaps them to reverse. A motor that works one way only points to the switch.
Redrawn from BMW ETM 5200.2 (05/99), standard petrol E36 (316i–328i); diesel and M3 parts are left out.
The passenger seat is wired like the driver's, from its own fuse F5.
Redrawn from BMW ETM 5200.2 (05/99), standard petrol E36 (316i–328i); diesel and M3 parts are left out.
Each heated-seat switch has its own electronics (two stages and a thermostat) and powers the cushion and backrest elements directly, from fuse F4 through the unloader relay K9.
Redrawn from BMW ETM 5203.0 (05/99), standard petrol E36 (316i–328i); diesel and M3 parts are left out.
The sunroof unit drives the motor itself; the switch only grounds one of two signal lines from the unit. The body module can close the roof when the car is locked.
Redrawn from BMW ETM 5410.1 (05/99), standard petrol E36 (316i–328i); diesel and M3 parts are left out.
The ZKE powers the driver's door lock heater; the driver's door handle switch S48 and the door lock switch S47 are its inputs on the same page.
Redrawn from BMW ETM 5120.0 (05/99), standard petrol E36 (316i–328i); diesel and M3 parts are left out.
BMW labels every wire with its size and colour, for example 2.5 SW/GE: 2.5 mm², black (schwarz) with a yellow (gelb) stripe. Connectors are numbered X…, followed by the pin. The wires in these diagrams are drawn at relative thickness, so the 25 mm² battery cable stands out from a 0.35 mm² signal wire.
Codes used here: SW = black, RT = red, GN = green, BL = blue, GE = yellow, BR = brown, WS = white.