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Read the WELCOME ALL BMWFANATICS post.
Uneven Brake pad wear?!
- Thread starter Onyx
- Start date
Donovan2412
///Member
What car is this?
Ralf*
///Member
in order of how I would start the process of fault finding
1) likely poor quality brake pads, with inconsistent pad density and compound
2) worn disks, with possible extra grooves and roughness on the discs
3) Warped disks
4) Sticky caliper, causing limited braking to be applied on one side
5) Internal pipe blockages (gunk) preventing applied fluid pressure to go to the relevant caliper
1) likely poor quality brake pads, with inconsistent pad density and compound
2) worn disks, with possible extra grooves and roughness on the discs
3) Warped disks
4) Sticky caliper, causing limited braking to be applied on one side
5) Internal pipe blockages (gunk) preventing applied fluid pressure to go to the relevant caliper
probably Sticking Guide pins...
ET was here
New member
Carbon@TheFanatics said:
would the sticky guide pins be that restrictive to overcome the force of hydraulic pressure ?
Luis Malhou
///Member
sticky guide pins , whether rear or front. When you put new pads on now, clean the guide pins, if they heavily corroded or dirty you can buy replacements and maybe even the black rubber caps. Buy a tube of High Temp grease, although I have successfully used Copper Compound but the former is better
Clean the guide pins and the holes. Apply a small amount of grease to the guide pins and assemble.
Sticky guide pins can also cause discs to wear prematurely or even cause high heat build up, which is not good for the discs either. Also if the brakes are used hard and are hot and the car is stopped, the heat from the pad sitting on the disc the whole time can lead to spot scorching which causes either warped discs or shine spots on the disc.
Clean the guide pins and the holes. Apply a small amount of grease to the guide pins and assemble.
Sticky guide pins can also cause discs to wear prematurely or even cause high heat build up, which is not good for the discs either. Also if the brakes are used hard and are hot and the car is stopped, the heat from the pad sitting on the disc the whole time can lead to spot scorching which causes either warped discs or shine spots on the disc.
