A couple of things to remember, they should all be the same code: 5303 988 0052
But you can have a different compressor or turbine, plus inlet and outlet depending on use.
However the following should be safe, now check out the one for £40 on ebay:
BW Part Number : * 5303 988 0052
OEM Part Number : 06A145704T
Manufacturer : Audi
Vehicle : A3 1.8T
Engine :
From : 9/1/2000
Power (kW/HP) : 132/180
BW Part Number : * 5303 988 0052
OEM Part Number : 06A145704T
Manufacturer : Seat
Vehicle : Leon 1.8T
Engine :
From : 9/1/2000
Power (kW/HP) : 132/180
BW Part Number : * 5303 988 0052
OEM Part Number : 06A145704T
Manufacturer : Skoda
Vehicle : Octavia 1.8T
Engine :
From : 9/1/2000
Power (kW/HP) : 132/180
BW Part Number : * 5303 988 0052
OEM Part Number : 06A145704T
Manufacturer : VW
Vehicle : Golf/Bora/Jetta 1.8T
Engine :
From : 9/1/2000
Power (kW/HP) : 132/180
BW Part Number : * 5303 988 0052
OEM Part Number : 06A145713D
Manufacturer : Audi
Vehicle : A3 1.8T
Engine :
From : 7/1/2001
Power (kW/HP) : 132/180
BW Part Number : * 5303 988 0052
OEM Part Number : 06A145713D
Manufacturer : Seat
Vehicle : Leon 1.8T
Engine :
From : 7/1/2001
Power (kW/HP) : 132/180
BW Part Number : * 5303 988 0052
OEM Part Number : 06A145713D
Manufacturer : Skoda
Vehicle : Octavia 1.8T
Engine :
From : 7/1/2001
Power (kW/HP) : 132/180
BW Part Number : * 5303 988 0052
OEM Part Number : 06A145713D
Manufacturer : VW
Vehicle : Golf/Bora/Jetta 1.8T
Engine :
From : 7/1/2001
Power (kW/HP) : 132/180
BW Part Number : * 5303 988 0052
OEM Part Number : 06A145704T
Manufacturer : Audi
Vehicle : TT
Engine :
From : 9/1/2000
Power (kW/HP) : 132/180
BW Part Number : * 5303 988 0052
OEM Part Number : 06A145713D
Manufacturer : Audi
Vehicle : TT
Engine :
From : 7/1/2001
Power (kW/HP) : 132/180