Are these a straight fit for a disc braked bay or does anything need to be opened up, different studs etc? Thanks, Phil
5x112 merc wheel should be straight fit provided offset and width is ok. mercedes usually uses m12 studs where a bay is m14 so the bolt holes might need opening up a tad but centre bore should be fine fitting any non-standard wheels you're likely going to need longer studs but you won't know until you try them. you may also need different nuts, bay are radius nuts and so are merc but might be different sizes.
Would this be the same for a merc space saver spare, if so off which model merc I'm running 15" rims TIA