I change the fronts roughly once a year, rotors after two sets of pads.

Rears last longer, I change those roughly once every 2 years.

The cars do somewhere around 70% or more braking ont he front brakes and the difference on the rears.

Thats why the reas last much longer.

Regards,

Alon

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'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon - Sold
2006 E350 Wagon - 368 - Dead
2015 GL350 Bluetec - 197U