Fan visco-coupling unit for Audi A4 (B5 and B6) and A6 (C5)

For A4 (B5):
- 1.6 100 hp and 102 hp (ADP, ARM, AHL, ANA, ALZ)
- 1.8 115 hp and 125 hp (AFY, ADR, APT, ARG, AVV)
- 1.8 150 hp and 180 hp Turbo (ANB, ARK, APU, AEB, AJL, APU, AWT)
- 1.9 75 hp Diesel (AFF)
- 1.9 TDi 90 hp (1Z, AHH, AHU)
- 1.9 TDi 110 hp and 116 hp (AFN, AVG, AJM)

For A4 (B6):
- 1.9 TDi 101 hp (AVB)
- 1.9 TDi 130 hp (AVF, AWX)

For A6 (C5):
- 1.8 115 hp and 125 hp (AFY, AQE, ARH)
- 1.8 150 hp and 180 hp Turbo (AEB, ARK, AWT, AJL, ANB, APU)
- 1.9 TDi 110 hp (AFN, AVG)
- 1.9 TDi 115 hp (AJM)
- 1.9 TDi 130 hp (AVF, AWX)