Probably 3500 lbs. max. I have never seen a class III hitch for most European cars. The hitch for that car would have a 1 1/4 inch receiver.

__________________
95 SL500 Smoke Silver, Parchment 64K
07 E350 4matic Station Wagon White 34K
02 E320 4Matic Silver/grey 80K
05 F150 Silver 44K