I know everyone drives differently but what's the average mileage for front rotors/discs to be changed??

I changed my front rotors with OEM @ around 50,000km (I was told I could have changed out at around 55-60,000km). No real aggressive braking and mostly local traffic driven.

Thanks Bobble head! I've done 45k miles pads are getting low Mercedes want to charge me £1600 for new rotors and pads upfront before the car goes in they haven't seen the rotors yet! bit of a lip but i think they are still ok

the rotors for front are pricey and strangely enough, the rear rotors are more expensive than the front.

yeah how bizarre! don't mind changing if i have to its expected with these type of cars but to tell me over the phone they need changing is taking the ****