Uneven brake wear

[cozmicf]

Hey guys,

I took my 135i in to BMTech Canterbury to get the front brake pads changed since my car was telling me they needed changing. They called me up this morning and told me they noticed that the pad where the sensor is fitted (LH inner brake pad they say) was worn down much more than the others. I believe he said the others were at 75%.. that's a huge difference.

Any ideas what this could be?

He suggested I leave the car overnight whilst they send off the brakes to get looked at by an engineer, and told me this could be quite a costly fix, circa $1000 depending on what is wrong with the caliper. I asked him to just replace the pads and that I'll look into it more in the coming weeks.

[dsocold]

theres a simple soultions for this buy a used oem caliper on ebay or search for one.. it shouldnt be hard at all to find one

o and beter yet ecs tuning sells the caliper in yellow sport for 400 bucks and gray for 700 wierd but still cheaper

[Juggernaut135i]

Mine are doing the same. My rear passenger side one is much more worn then my other ones. Know idea why. Honestly could just be brake fluid

[cozmicf]

Originally Posted by dsocold

theres a simple soultions for this buy a used oem caliper on ebay or search for one.. it shouldnt be hard at all to find one

o and beter yet ecs tuning sells the caliper in yellow sport for 400 bucks and gray for 700 wierd but still cheaper

I had a quick look online for calipers and could only find them at ECS Tuning ($400 for yellow, and $700 for gray) and Turner Motorsport ($650 for driver's side, I assume that is left since it's from the US). With shipping and currency conversion costs it'll end up being a little under $800 AUD. Still a fair bit, hopefully I don't need to do it.

Is there a difference between the yellow and gray ones. The yellow one is cheaper but is also apparently still a BMW performance caliper.

[dsocold]

Originally Posted by cozmicf

I had a quick look online for calipers and could only find them at ECS Tuning ($400 for yellow, and $700 for gray) and Turner Motorsport ($650 for driver's side, I assume that is left since it's from the US). With shipping and currency conversion costs it'll end up being a little under $800 AUD. Still a fair bit, hopefully I don't need to do it.

Is there a difference between the yellow and gray ones. The yellow one is cheaper but is also apparently still a BMW performance caliper.

they are exactly the same!! yellow being a performance part and grey being the stock part but it doesnt matter they are exactly the same.... I painted my oem gray caliper yellow, but that yellow is more goldish on the perf caliper. If it were me id buy yellow and then paint them all red or something. It would looks odd riding around with one gold caliper

[cozmicf]

Ok so I just called the mechanic and he said that all the bolts were for some reason loctited in, and that a few of them were bent. He thinks the bent ones might be causing the uneven wear.

[STR8-6IX]

brake rotors were installed crooked = uneven wear