The part in detail:

Part A20440128029765 , MB 5-SP.WHEEL,8

Type:MB 5-SP.WHEEL,8

8.5J x 17 ET 58 RA 245/40 R17

 MB 5-spoke light-alloy wheel, 8,5J x 17 ET 58

 C-class / W 204 (03/07 - )
C-class / S 204 (12/07 - )

245/40 R17

W 204 (03/07 - )

REAR 245/40 R17 ON 8.5J X 17 ET 58
FINISH TITANIUM SILVER
OPTIONAL EXTRA FOR ALL LINES
NOT FOR C63 AMG,NOT FOR 4MATIC WITH MIXED SIZED TYRES
REAR AXLE ONLY
NOT SUITABLE FOR SNOW CHAINS
DOES NOT COME WITH TYRES.

Price: £240.00