[rasa bmw]

Originally Posted by tadaska

Replaced the pads this morning. An easy job but did encounter a few unexpected "problems".

The caliper bolts on one side are so rusted that I didn't think it was going to come off. When my wrench slipped off a couple of times trying to crack them I was going to just put the wheel back on and order new bolts so I can have them replaced at a garage but third time as lucky. I didn't do them tight as fuck so I can get them out next weekend to replace with new ones.

I bough some special slider grease that's designed for metal on metal and is rubber friendly. But it turns out my rear calipers are not metal on metal but metal on rubber and they are open to the elements. I didn't see the point in lubricating them so I stuck them in dry. Cleaned them up with brake cleaner first of course. To me it looked like that rubber might be a replacement item. Any of you guys know how it's supposed to be done per proper BMW instructions?.

Also, I thought the disk/drum was going to come off and was going to inspect the state of things inside of it but instead I was greeted with a racing style nut in the middle. What's that all about?

you need to take the disc retaining screw/allen out..not the hub bolt.

[tadaska]

Originally Posted by dreamspeed

If you want practically zero dust check out the akebono ceramics. Actual braking performance is a tad bit lower though.

Not sure we have them in the UK. But maybe I didn't search hard enough. I did read about them on the forums.

[tadaska]

Originally Posted by rasa bmw

you need to take the disc retaining screw/allen out..not the hub bolt.

It looked like it was all one piece. Are you sure it would come off? I wirebrushed it trying to see if there is a joint but could not see any.

[Chappers 71]

As rasa said undo the hex head retaining screw on the disc hub, you may need to tap the hub with a rubber mallet to get it off. There are plenty of vids out there on how to change discs/rotors & pads.

As you can see from pic below the new disc & hub fit around the central nut

[rasa bmw]

Originally Posted by tadaska

It looked like it was all one piece. Are you sure it would come off? I wirebrushed it trying to see if there is a joint but could not see any.

yup..and as said.if its a little stiff,give it a whack..
clean it all up after,,so next time its easier,,get a bit of copper grease in.

[AndyVR]

Hex retaining screw is right there on your pic, at about 10 'o' clock!

Also, the joint is visible on the disc around the spigot that the wheel locates on.

[AndyVR]

Just something to note, my E91 nearly failed MOT recently on a rear calliper hose being twisted. Tester said it was easily done on these cars, putting the caliper back on with the hose twisted(?). Can't say I've ever found that to be a thing on VW's in the past, it would be pretty obvious and careless, but thought it was worth mentioning.

Looks like this weekend I'll be removing the caliper and removing the twist in the hose.