Address 7D: Heater Label file: DRV\1K0-963-235.lbl
Part number SW: 1K0 963 235 E, Part number HW: 1K0 963 235 E.
Component: PTC element 0404.
Revision: 00800000 Serial number:
Operating number: WSC 00000 000 00000
I always thought the PTC heater was directly integrated into the Climatronic system.
Was ist denn jetzt anders? War es früher (MJ06 im 3C) getrennt?
"For the years 2006-2007, it's listed as an external PTC heating element, located within the heat exchanger housing. There's also a note that says 'CLIMATIC - semi-automatic air conditioning system'."
Previously, it was an external TCU (Transmission Control Unit). Later, two relays (for low/high heating) were used, which were controlled by the engine control unit.