Premature rear break wear
 

So my brake wear indicator turned on at 36000km (22500 miles) and thought I was a bit aggressive with a couple of auto X events I have been to and burned out the fronts.

End up it was the rears that was burned up and the fronts are fine. Lucky it was covered by 2 year/40,000km wear warranty, beat it by about 2 weeks. So service adviser said this is common across all W205 caused by torque vectoring applied by the brakes.

Wonder if any member experience this or is this caused by my aggressive driving corning on a few on/off ramps each day. :D

mine happened a lot earlier, like 20k miles. I thought was the front brake, opened it up and still 1/3 left, swapped it out anyway.
Rear is hard to do because of electronic lock, ended up going to service.

It's pretty common for the rears to go before the fronts in this car. My rear wear sensors came on around 21,000 miles as well. The fronts had not hit the sensors but were not far behind. Incidentally, the front rotors were about 50% gone, but the rears were hardly used (from a thickness measurement standpoint).

Not unusual at all -- but yes in addition to the normal braking, the car uses brakes for pseud limited slip differential, lane keeping, stability control, etc....

The electronic lock on the rear is no big deal, you just need to go into the menu on the dash to disable it and then re-enable it when done. Takes 30 seconds to do.

Could you please post the exact steps to get to this menu? TIA

This video explains it best. Note, what the video does not mention is that you can't get to the service menu from most screens, make sure you are on the odometer to try to get there.