Fresh air intake and recirculation damper control module, auxiliary coolant pump relay, engine ECM, coolant circulation pump
J251 Cabin fresh air intake and recirculation damper control module
J359 Heating output relay low
J360 Heating output relay high
J496 Auxiliary coolant pump relay
J519 Power control module
J623 Electronic engine control unit
T10d 10-pin electrical wiring connector, behind the dashboard
T14a 14-pin electrical wiring connector, front left in the engine compartment
T16e 16-pin wiring connector
T94a 94-pin wiring connector
V50 Coolant circulation pump
* Only vehicles without air conditioning/Climatronic
*2 Models with additional air heater only
Deciphering the designations of the colors of the wiring: ws - white; sw - black; ro - red; rt - red; br - brown; gn - green; bl - blue; gr - grey; li - lilac; vi - lilac; ge - yellow; or - orange; rs - pink.