525i brake upgrade to 540i

[zackdawley]

So I've had my 525i for about 6 months. About a week ago I had the caliper bolts fail on the right rear brake, and smashed it's self into the rotor shield. Cut the brake line and broke the caliper arm. So I've tried to get the OEM caliper replaced, but it's not available, so the best option I could come up with is to upgrade the rear brakes to the 540i brakes which are available. And fyi, the calipers rotors and pads are going to all together total less than $200, thats what happens when you've got a great working relationship with the local parts store and they screwup an order and give you a front caliber instead.

Does anyone have any advise or something I might not be thinking of when doing this swap.

anyone?

[LouieD]

Straight forward swap. I am waiting on rotors to do mine as I have everything else. Just make sure you use anti-seize on the caliper slide bolts and anti-squeak on the pads themselves.

[zackdawley]

right, just wanted to make sure I wasn't missing anything.

[russiankid]

Bentley manual doesn't say to use any grease on the caliper slide pins. There is a rubber boot on the guides that prevents dirt and moisture to get on them.

[LouieD]

Bentley manual doesn't say to use any grease on the caliper slide pins. There is a rubber boot on the guides that prevents dirt and moisture to get on them.
I agree.. but after seeing many a boot filled with dirt and moisture it really is cheap insurance. It does not take much, a thin film, but it can save a ton on headaches down the road. It also allows the caliper to "float" with less effort. I've used it on every brake job I've ever done with never a negative effect. Not trying to change anyone's mindset, or to suggest that the Bentley is wrong or incomplete...merely a suggestion based on many experiences.

[tonyroc14]

I agree.. but after seeing many a boot filled with dirt and moisture it really is cheap insurance. It does not take much, a thin film, but it can save a ton on headaches down the road. It also allows the caliper to "float" with less effort. I've used it on every brake job I've ever done with never a negative effect. Not trying to change anyone's mindset, or to suggest that the Bentley is wrong or incomplete...merely a suggestion based on many experiences.
i think its a good suggestion. While your in there, mights as well...

[russiankid]

I think I put a tad bit on mine as well. I don't remember but you can't even see anything on mine.

[Binjammin]

Bentley manual doesn't say to use any grease on the caliper slide pins. There is a rubber boot on the guides that prevents dirt and moisture to get on them.

Use dielectric grease on it. Just because the bentley doesn't cover it doesn't mean the pins don't need to be greased.

[zackdawley]

bump... any more advice?