A/C switch on '90 C4
#16
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Porsche actually put out a warranty bulletin #89103 (US) about replacing the CCU for just cosmetic or switch defects. Below is a list (from the warranty bulletin)of the seperate parts that should be able to be ordered from the factory:
Slide **** Part Number 944 653 205 00
Fan Switch **** Part Number 964 659 146 00 01C
Temperature Switch **** Part Number 944 653 208 00
A/C Switch Part Number 944 653 922 00
Defroster/Recirculation Switch Part Number 944 653 921 00
Face Plate Part Number 964 659 945 00
Sensor Fan Part Number 964 659 148 00
Good Luck!
Slide **** Part Number 944 653 205 00
Fan Switch **** Part Number 964 659 146 00 01C
Temperature Switch **** Part Number 944 653 208 00
A/C Switch Part Number 944 653 922 00
Defroster/Recirculation Switch Part Number 944 653 921 00
Face Plate Part Number 964 659 945 00
Sensor Fan Part Number 964 659 148 00
Good Luck!