|
|
04-25-2009, 06:57 PM | #1 |
Private First Class
35
Rep 192
Posts |
Just got done putting RS-19's but...
So I finally got a chance to put RS-19's, front, rear and Motul 600 from the body shop. On the way home, I've tried in the bed in process. Stopping 10 mph from 60 mph, repeating that 8 times, and stopping 10 mph from 80 mph, repeating that 2 times. However, my brake seems to be a softer than before, I was just wondering if this was normal. Also it was squeaking like HELL~!! and people were looking at me like I was a maniac on the street~!! Any comments will be appreciated.
__________________
E92 M3 Coupe\Interlagos Blue\6MT\18"\Technology PK\Premium Sound\Moon Roof\H&R Sport Springs\UUC SSK\GP Thunder 8500K H8 & 12000K HID Xenon\MB Grill\VSR Ti Exhaust\AA X-pipe\AA ECU\AA pulley\VSR CF rear diffuser\VSR CF boot lid\Painted Reflector\Gruppe M CAI\VSR Frontlip\Volk TE-37 19' |
04-26-2009, 09:38 AM | #2 |
Veni Vidi Vici
89
Rep 2,750
Posts
Drives: '11 JB/BBe-6sp-e90
Join Date: Jul 2008
Location: Macungie PA
iTrader: (0)
Garage List 2011 e90 M3-Sold [8.50]
2003 RS6 - Sold [0.00] 2009 e90 M3 - Gone [0.00] 2003 M3 SOLD [0.00] old 2002 [10.00] |
Same here. Just drive them on the street for a week or two. Try to get them hot once or twice so that they out-gas a little if they are going to.
|
Appreciate
0
|
04-26-2009, 12:09 PM | #3 | |
Captain
80
Rep 961
Posts |
Quote:
Try re-bleeding the brakes - I suspect there's a bubble in there somewhere. It's possible to mix air into the new fluid on a flush and then you get a soft pedal for no obvious reason. Re-bleeding after a couple of days usually solves it. As for the noise, that's just your new pads telling you how happy they are to be on your car. No, really. |
|
Appreciate
0
|
04-26-2009, 06:24 PM | #4 |
Private First Class
16
Rep 148
Posts |
Just did the same thing yesterday: RS-19's and some new 600 temp brake fluid. I agree with you, sort of.
For me at least the brakes are softer at the top of the pedal travel, about the same or 'firmer' than stock at the bottom. I did a couple of hard stops (60 -> 20 or so) to see what would happen and was happy with the results, but also tried some mini-panic-stops (say, 50 -> 35), specifically trying to apply the same amount of braking pressure I would, for example, if I was on the freeway and traffic slowed suddenly. For those I found it's a bit scary because it's hard to find the right 'bite' point - On stock it felt natural the whole way, with the RS-19's it's a much more abrupt transition from too soft to too firm. It's not that I couldn't slow quickly enough, it's that it was almost too much unless I caught it just right. But I'm pretty sure this is just a combination of breaking in the pads and getting used to a different grip profile. As for squealing, I get a little bit at only one point in the pedal travel. I stop just a tiny bit harder at lights and such than I used to, and I only get a little squeakiness at the end - nothing bad at all. Did you use anti-squeal compound (or just high-temp grease) when you installed them?
__________________
|
Appreciate
0
|
04-26-2009, 06:46 PM | #5 | |
Major General
374
Rep 8,033
Posts |
Quote:
__________________
|
|
Appreciate
0
|
04-26-2009, 09:13 PM | #6 |
Private First Class
35
Rep 192
Posts |
Thanks for all the useful information~!! For now, the brakes are still little too soft, after couples of hard stops that I've made, but I agree with Wolftrouble. It feels like the brake travel bit more than the stock, but feels firm at the end. I guess I just have to wait till this Saturday for my 2nd track session and see what happens. For the squeaking issue, I had a mazda 8 stopped right next to with bunch of high school kids in it ( I guess near prom season) shouting "You got a BMW M3 and the brake is Fu**ed up!! HAHAHAH" man... I just popped out a cigarette and HAD to LMAO~!!
__________________
E92 M3 Coupe\Interlagos Blue\6MT\18"\Technology PK\Premium Sound\Moon Roof\H&R Sport Springs\UUC SSK\GP Thunder 8500K H8 & 12000K HID Xenon\MB Grill\VSR Ti Exhaust\AA X-pipe\AA ECU\AA pulley\VSR CF rear diffuser\VSR CF boot lid\Painted Reflector\Gruppe M CAI\VSR Frontlip\Volk TE-37 19' |
Appreciate
0
|
04-27-2009, 09:32 AM | #7 |
Moderator
94
Rep 1,920
Posts |
I would re-bleed them just to make sure. Other than that, you could have a bit more travel as you prolly mated them to used rotors. After you get them to temp on the track and hammer on them, you can eliminate that. For now, I would bleed them again, just to make sure.
__________________
Tim <--- apparently likes "3" cars
2014 E63S -- The Rocket 2014 F30 328i -- Kids car 2008 E90 M3 -- Sold 2004 GT3 -- Sold 1997 M3/4 -- Sold 1995 M3 -- Sold |
Appreciate
0
|
05-02-2009, 05:36 PM | #8 |
Private First Class
35
Rep 192
Posts |
Just got back from the Pocono's~ and I was completely wrong~!! Lucid you were right~!! After they heat up... DAMn that thing is like a boat anchor. It didn't even fade like the stock pads did. Highly recommended and my worries are all gone~~ Thanks for all the infos~
__________________
E92 M3 Coupe\Interlagos Blue\6MT\18"\Technology PK\Premium Sound\Moon Roof\H&R Sport Springs\UUC SSK\GP Thunder 8500K H8 & 12000K HID Xenon\MB Grill\VSR Ti Exhaust\AA X-pipe\AA ECU\AA pulley\VSR CF rear diffuser\VSR CF boot lid\Painted Reflector\Gruppe M CAI\VSR Frontlip\Volk TE-37 19' |
Appreciate
0
|
05-03-2009, 12:25 AM | #9 |
Captain
266
Rep 770
Posts |
Yeah, I'd re-bleed them just to make sure like GT3 Tim said.
It's possible that the shop you used didn't flush the old fluid thoroughly enough, and instead did more of an extended bleed rather than a thorough flush. How many quarts of Motul did they use? My shop was very thorough about the brake flush and ended up using nearly 2 bottles of the Castrol SRF I supplied. Keep in mind that Castrol SRF only comes in 1-liter bottles so they completed the flush with nearly 4 quarts of the pricey stuff. Better safe than finding out the hard way, although I doubt you'll have any issues.
__________________
2021 A6 Allroad, 2020 SQ7, 2019 M5 Comp, 2011 GT3
past: A4, S4, X5 4.8is, SLK55, E60 M5, RS4, ML63, E92 M3, Q5, Touareg TDI, Escalade, SQ5, RS7, Velar FE, Q7 |
Appreciate
0
|
09-08-2009, 08:59 AM | #11 | |
Captain
83
Rep 628
Posts |
Quote:
|
|
Appreciate
0
|
09-08-2009, 03:01 PM | #12 |
Second Lieutenant
60
Rep 277
Posts |
like others have said try re-bleeding the brakes. when i bleed mine, on the last bleed of every caliper i have someone start the car, hold the brake and crack open the bleeder valve. pedal is always firm. or you can have a pressure bleeder attached to the brake fluid reservoir pumped up to about 15psi and have someone hold the brake pedal down as you crack open the bleeder valve. i only do this on the last bleed of every caliper, not throughout the entire process. hope this makes sense.
__________________
|
Appreciate
0
|
09-08-2009, 03:06 PM | #13 |
Major General
374
Rep 8,033
Posts |
Guys, read post #9, or the thread, for that matter. He does NOT have an issue with his brakes. It sounds like it was a perception issue associated with the transition to track pads and the way track pads behave when they are cold. Not sure why this thread was revitalized again after 4 months to begin with...
__________________
|
Appreciate
0
|
09-08-2009, 06:31 PM | #14 | |
Lieutenant Colonel
48
Rep 1,664
Posts |
Quote:
__________________
2008 E92 M3 Jerez Black,DCT,Fox Red ext,Prem,Tech,19", ipod/usb, CF roof and trim
2010 E91 328i Space Gray,Black int, M sport, most options 2007 Montego Blue 335i (retired) |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|