Audi-Seat-Skoda-VW-01-DCS17E-PV6

ZEXEL started manufacturing Swash-Plate compressor in 1967.

http://www.compressor-express.com/ac-compressor/audi/Audi-Seat-Skoda-VW-01-DCS17E-PV6

Some Audi A3 are built with the same air conditioning compressor. The Original Equipment Manufacturer Numbers (OEM numbers) are Audi 1K0820803H, 1K0820803L, 1K0820803N, 1K0820859D.

The air-conditioning system of these vehicles was assembled with a Zexel DCS-17E compressor. Manufacturer numbers: Zexel 506041-0001, 506041-0270, 506041-0760, Z0003014A.

These ac units seem to be interchangeable

Audi-Porsche-VW-03-7SEU16C-PV7

DENSO Air Conditioning systems provide high cooling capacity with the lowest cost of ownership in the market – making them a practical aftermarket option and a responsible investment.

http://www.compressor-express.com/ac-compressor/audi/Audi-Porsche-VW-03-7SEU16C-PV7

Some Audi Q7 are built with the same air conditioning compressor. The Original Equipment Manufacturer Numbers (OEM numbers) are Audi 3B0820803A, 3B0820803B, 3B0820803C, 3D0820803M, 3D0820803R, 7L6820803D, 7L6820803G, 7L6820803L, 7L6820803P, 7L6820803S, 7P0820803E.

http://www.youtube.com/watch?feature=player_embedded&v=jmSGGnubIZY

The air-conditioning system of these vehicles was assembled with a Denso 7SEU16C compressor. Manufacturer numbers: Denso 447150-3630, 447170-8680, 447170-8685, 447170-8686, 447170-8687, 447170-8688, 447180-8600, 447190-4350, 447190-4353, 447190-7590, 447190-7596.

These ac units seem to be interchangeable.