Brake DIY Questions

T_Bone · 11-23-2016, 08:48 PM

Hey guys, it looks like my original rear pads are approaching the end of their life, and I had a few questions I was hoping you can help with... This is for an F30 335i (Sport line but non-M)

1. Does anyone have the torque specs for the caliper pins and the caliper bolts? (My immediate interest is for the rear, but I'll take the fronts as well, as those won't be too far away...)

2. I have always replaced my rotors when I've replaced my pads--my thinking was that getting my rotors turned on the spot on a Saturday would be a hassle--but, I was wondering: is it really necessary to have the rotors resurfaced if they're in decent shape?

3. Any tips, or is there anything unusual about replacing pads / rotors on an F30? I've done it many times on E36's and E46's; is there anything different?

Thanks very much!

SergioK · 11-28-2016, 08:03 PM

Rotors do not need to be turned on a BMW. Just throw the new pads in and go.

oceanview · 11-30-2016, 05:12 AM

Quote:

Originally Posted by T_Bone

2. I have always replaced my rotors when I've replaced my pads--my thinking was that getting my rotors turned on the spot on a Saturday would be a hassle--but, I was wondering: is it really necessary to have the rotors resurfaced if they're in decent shape?
Thanks very much!

BMW Rotors are often down to the min. thickness when the pads are down.
So I would measure the rotor and then decide.
If installing new pads to used rotors you have to make sure, that pad surface has full contact to the rotor surface. Otherwise you wont have full brake power and it would take a long time for the pads to bed in.

madmonkey · 12-01-2016, 03:16 PM

Quote:

Originally Posted by oceanview

BMW Rotors are often down to the min. thickness when the pads are down.
So I would measure the rotor and then decide.
If installing new pads to used rotors you have to make sure, that pad surface has full contact to the rotor surface. Otherwise you wont have full brake power and it would take a long time for the pads to bed in.

Very true on rotors. I have always replaced rotors and pads at the same time to avoid headaches.

Brakes on F30 are no more complicated. Doing brakes on F10 with electronic parking brake is another story.

11-23-2016, 08:48 PM	#1
T_Bone Private First Class 26 Rep 125 Posts Drives: F30 335i Join Date: Mar 2012 Location: CT iTrader: (0)	Brake DIY Questions Hey guys, it looks like my original rear pads are approaching the end of their life, and I had a few questions I was hoping you can help with... This is for an F30 335i (Sport line but non-M) 1. Does anyone have the torque specs for the caliper pins and the caliper bolts? (My immediate interest is for the rear, but I'll take the fronts as well, as those won't be too far away...) 2. I have always replaced my rotors when I've replaced my pads--my thinking was that getting my rotors turned on the spot on a Saturday would be a hassle--but, I was wondering: is it really necessary to have the rotors resurfaced if they're in decent shape? 3. Any tips, or is there anything unusual about replacing pads / rotors on an F30? I've done it many times on E36's and E46's; is there anything different? Thanks very much!
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11-28-2016, 08:03 PM	#2
SergioK Second Lieutenant 16 Rep 234 Posts Drives: F30 328i Join Date: Oct 2012 Location: L.A. iTrader: (0)	Rotors do not need to be turned on a BMW. Just throw the new pads in and go.
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