Mercedes Sport Wheels Centre Cap Size??

[AMR1TS]

Does anyone know what the size the centre caps would be for a w211 OEM Sport Wheel?

I've just bought a set of wheels (used) but the centre caps are missing...

Had a look on ebay and there are different sized Mercedes centre caps (58/68/75mm etc)!

Thanks

 

[npuk]

These are the OEM caps and part numbers. http://www.alloywheelsdirect.net/option/centre_caps_mercedes

 

[reflexboy]

75mm