Gosh it is more complicated than I'd appreciated.
So are the last ones on this list, the et56 - as per Oli"s -, the only 180 compatible ones?
Original Equipment, Load 840kg:
VWN Steel wheel 6,5 Jx16 ET 51 (7H0 601 027D / C)
Original Equipment, Load 850kg:
VWN Steel Wheel 7.0 Jx17 ET55 (7E0 601 027 B)
VWN Jx17 steel rim 7.0 offset 55 (7H0 601 027 B)
VWN Jx16 ET51 alloy wheels 6.5 "Miyato" (7H0 601 025 E)
VWN Jx16 ET55 alloy wheels 7.0 "LA" (7H0 601 025 B)
VWN Jx17 ET55 alloy wheels 7.0 "Neva" (7E0 601 025 C)
VWN Jx17 ET55 alloy wheels 7.0 "Thunder" (7H0 601 025 H)
VWN Jx17 ET55 alloy wheels 7.0 "Solace" (7H0 601 025 G)
VWN Jx18 ET50 alloy wheels 8.0 "Canberra" (7E0 601 025 D)
Retrofitting, Load 875kg
VWN Steel wheel 6,5 Jx16 H2 offset 52 (7H8 601 027A)
VWN Jx16 ET51 alloy wheels 6.5 "Tangis" (7H0 071 496 666)
VWN LM rims 7.5 Jx17 offset 55 "Suez" (7H0 071 497 666)
VWN Jx18 ET55 alloy wheels 8.0 "Dakar" Brilliant Silver (7H0 071 498 1ZL)
VWN Jx18 ET55 alloy wheels 8.0 "Dakar" black (7H5 071 498 AX1)
VWN LM rims 7.5 Jx17 ET55 "Canyon" (7L6 601 025 E)
Retrofitting, Load 900kg
VWN 7.5Jx17 ET55 alloy wheels "Siena" (7L6 601 025 J)
VWN Jx17 ET55 alloy wheels 7.5 "Sima" (7H0 071 497 A 8 Z)
Retrofitting, Load 920kg
VWN Jx16 ET51 alloy wheels 6.5 "Sima" (7H0 071 496 A 8 Z)
Original equipment / retrofitting, Load 950kg
VWN Steel rim 7Jx17 H2 offset 56 (7J5 601 027)