rotor replacement, need new pads?

NORAGRETS · 06-28-2013, 01:33 AM

just bought BMW M perf. cross drilled and slotted rotors for front and rear on my 135i.

Do I NEED to replace the pads? or can I use the ones on there now? only 13,000 miles on the car

fboutlaw · 06-28-2013, 01:35 AM

If you have pad material left >3mm per pad, you can use the same pads.

NORAGRETS · 06-28-2013, 01:36 AM

ok so the SA at BMW was just giving me a run around...is it beneficial to marry pads/rotors together? or will they break in accordingly?

fboutlaw · 06-28-2013, 01:48 AM

SA's are salesmen. In an extremely optimal (and overpriced) world, yes you'd marry brake pads with rotors, then swap track rotors and track pads only for track use. Then you'd swap back to your street set.

Ignore SA.

If you get new rotors, you do need to bed them in with whatever compound pads you have on the car. So you need to go through that procedure again, then you're good to go.

NORAGRETS · 06-28-2013, 02:01 AM

do you know the BMW bed-in recommendations by chance?

hyphy1 · 06-28-2013, 02:02 AM

what about the pad sensors? are they necessary?

NORAGRETS · 06-28-2013, 02:15 AM

pretty sure you do not need to replace pad sensors

Greg FEightytwo · 07-20-2013, 12:34 AM

Quote:

Originally Posted by Twhill19

just bought BMW M perf. cross drilled and slotted rotors for front and rear on my 135i.

Do I NEED to replace the pads? or can I use the ones on there now? only 13,000 miles on the car

Have you installed them yet? I'm looking to get some for my 135is.. I have nice 19 vmrs but shitty rotos they come with are ugly and I heard these are better stopping power.. Id love to see photos of them installed since no one on here i've seen has them yet..

G

NORAGRETS · 07-20-2013, 12:24 PM

yeah ill try to take some today, they look a lot better for sure. stopping power is much better too

06-28-2013, 01:33 AM	#1
NORAGRETS Colonel 441 Rep 2,035 Posts Drives: 2017 F80 M3 ZCP BSM 2012 E82 1 Join Date: May 2012 Location: Boston, MA iTrader: (0) Garage List 2017 BMW M3 ZCP LCI [0.00]	rotor replacement, need new pads? just bought BMW M perf. cross drilled and slotted rotors for front and rear on my 135i. Do I NEED to replace the pads? or can I use the ones on there now? only 13,000 miles on the car
	Appreciate 0 Tweet Quote

06-28-2013, 01:35 AM	#2
fboutlaw Cone Cruncher 31 Rep 534 Posts Drives: Dinan 135i Join Date: Apr 2010 Location: Cupertino, CA iTrader: (3)	If you have pad material left >3mm per pad, you can use the same pads.
	Appreciate 0 Quote

06-28-2013, 01:36 AM	#3
NORAGRETS Colonel 441 Rep 2,035 Posts Drives: 2017 F80 M3 ZCP BSM 2012 E82 1 Join Date: May 2012 Location: Boston, MA iTrader: (0) Garage List 2017 BMW M3 ZCP LCI [0.00]	ok so the SA at BMW was just giving me a run around...is it beneficial to marry pads/rotors together? or will they break in accordingly?
	Appreciate 0 Quote

06-28-2013, 01:48 AM	#4
fboutlaw Cone Cruncher 31 Rep 534 Posts Drives: Dinan 135i Join Date: Apr 2010 Location: Cupertino, CA iTrader: (3)	SA's are salesmen. In an extremely optimal (and overpriced) world, yes you'd marry brake pads with rotors, then swap track rotors and track pads only for track use. Then you'd swap back to your street set. Ignore SA. If you get new rotors, you do need to bed them in with whatever compound pads you have on the car. So you need to go through that procedure again, then you're good to go.
	Appreciate 0 Quote

06-28-2013, 02:01 AM	#5
NORAGRETS Colonel 441 Rep 2,035 Posts Drives: 2017 F80 M3 ZCP BSM 2012 E82 1 Join Date: May 2012 Location: Boston, MA iTrader: (0) Garage List 2017 BMW M3 ZCP LCI [0.00]	do you know the BMW bed-in recommendations by chance?
	Appreciate 0 Quote

06-28-2013, 02:02 AM	#6
hyphy1 Second Lieutenant 26 Rep 274 Posts Drives: 2010 135i Join Date: May 2012 Location: California iTrader: (0)	what about the pad sensors? are they necessary? __________________ 2010 135i N54 Black/Black For Sale!
	Appreciate 0 Quote

06-28-2013, 02:15 AM	#7
NORAGRETS Colonel 441 Rep 2,035 Posts Drives: 2017 F80 M3 ZCP BSM 2012 E82 1 Join Date: May 2012 Location: Boston, MA iTrader: (0) Garage List 2017 BMW M3 ZCP LCI [0.00]	pretty sure you do not need to replace pad sensors
	Appreciate 0 Quote

07-20-2013, 12:24 PM	#9
NORAGRETS Colonel 441 Rep 2,035 Posts Drives: 2017 F80 M3 ZCP BSM 2012 E82 1 Join Date: May 2012 Location: Boston, MA iTrader: (0) Garage List 2017 BMW M3 ZCP LCI [0.00]	yeah ill try to take some today, they look a lot better for sure. stopping power is much better too __________________ 2017 F80 ZCP BSM - Klein Innovation. ActiveAutowerkes. AR Design. BootMod3 Paul Johnson. EvRw. Project Gamma. RW Carbon. UCP. UUC. Hawk. Dinan. NGK. Macht Schnell. TMS. VR. aFe. RIP - E82 135i - 7/7/2021
	Appreciate 0 Quote