Quote:
Originally Posted by M_Bimmer
Miniminally:
1. 4-zone distribution box under the dashboard
2. Center console w/ rear motor
3. Center console rear vent control unit and vents
4. Front center vents assembly w/ two temp thumb wheel version
5. Front left and right dashboard vents for 4-zone
6. Rear right and left floor vent stratification + heater + temp sensors
7. Wiring harness from front ventilation controls to items 3, 4 & 5
8. Wiring harness from item 4 to both item 2 and to item 6
9. Code for 4-zone
Note 1: Item 5 will require heavy durty wiring from the rear fuse box for the heater elements
Note 2: Rear controller HKA also supports rear heated seats, so you'll either need to wire your current non HKA controlled version to the HKA, or leave it disabled
Note 3: The disassembly of the center console to remove the front dashboard, and then change out the front distribution box will be where most of the labor and effort is required in this mod
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Thanks for explaining that, so I really only care about the AC function and i can add the heating function later. If thats the case do I still need to replace the HVAC box in the dash?
Also i have heated rear seats now but obviously not with the control panel, if i add the control panel, it wont work without special wiring?