Uneven Pad Wear

[BMWRX]

I put new pads onto my car a little while back but have only just had a good look at the pads that came off the car. The inside pad on both front wheels seems to have worn much more than the outside pad. Does anyone know any reason for this happening and if it is cause for concern?

[Järppä]

Originally Posted by BMWRX

I put new pads onto my car a little while back but have only just had a good look at the pads that came off the car. The inside pad on both front wheels seems to have worn much more than the outside pad. Does anyone know any reason for this happening and if it is cause for concern?

That is normal because brake piston located at the inside.
Brake piston press (inside) brake pad and pulls (outside) pad.
Pressing is more effective than pulling. That is one reason why example racing brake calibers has four press pistons (two inside, two outside)

[Focusedintntions]

jarpa i'm sorry but you incorrect in your assesment of the issue when it comes to the 135's considering they have 6 piston calipers.

OP is your wear extremely severe on both front calipers? I had a similar issue and after taking apart the calipers and inspecting the inner seals i re-lubed the pistons with clean brake fluid before re-assembling and it fixed my issue. If it's minor uneven wear, like a couple millimeters difference then I wouldn't worry about it too much and can be considered "normal"

[Järppä]

Originally Posted by Focusedintntions

jarpa i'm sorry but you incorrect in your assesment of the issue when it comes to the 135's considering they have 6 piston calipers.

Of course, silly me.
I was so in my thoughts that i forget that 135i has not have same brake caliber than i have.