Tap the brake on the R50 and the RR brake will lock up, especially in the snow. Very dangerous car at this point. LR also dragging a bit as well. Ordered 2 new Calipers, Rotors and brakes. I guess this is a pretty common issue with these cars?

 

Not sure how a bad caliper can make it lock up early. Seems like a bad proportioning valve? Or possibly poor tires.

 

 

I am pretty sure it is the piston. It will release after 15-30 Seconds most times.

Minidogger- What do you mean by "locking up early" ?? You tap the brake and it locks.....I went last night and swapped cars with my son at work so he could safely get home. I drove all the way home never touching the brake. When I got to my drive, I hit the brake....And it stuck.....

 

 

Thank you. I have one of the tools, I think...My MR2 rear pistons need screwed in as well..Should be the same?? Probably not with BMW..lol. I am not even going to mess with it...The car spent the majority of it's 80K plus miles in Canada.....So....they are going to need replaced and that may free up for a little while...., but go right back to sticking. It is my son's car.....So I really need him to be safe out there....and the car is dangerous in the snow...even with 4 snow tires.....if there are dry conditions....the wheel will turn......but, hangs up every x brake it tapped.

 

 

All is good up there.....so far.....Piece by piece...lol Runs great, looks fantastic..was garage kept in Canada. Just want to get a couple years out of it...Needs a muffler.....

 

All replaced today....Brakes, Rotors and Calipers. Rt rear was seized with boot missing.

 

 

 

I hear ya,,NW PA here...and my sons car came from Canada

 

Well, MPG is going to go way up.....the thing rolls so freely now it is amazing how badly the brake were hanging up.

 

 

Never.....very weird. Of course.....it has been very very cold too.

 

Replaced brake wear sensor w/ one from Rock. Worked like a charm....both lights went out!!