I had my brakes bled for a routine schedule, but it still feels just as mushy as before. 27K miles on the car. Nothing serious, but it makes me wonder if the shop even did anything. I was expecting a stiff feel. It's all stock components. I bought the car used, so I'm not sure if this is the normal feeling as when it was new.
I had my brakes bled for a routine schedule, but it still feels just as mushy as before. 27K miles on the car. Nothing serious, but it makes me wonder if the shop even did anything. I was expecting a stiff feel. It's all stock components. I bought the car used, so I'm not sure if this is the normal feeling as when it was new.
They may not have been bled properly, there is a very definate procedure that has to be followed if you want to get a firm pedal with BMW stock brakes.
See: http://www.zeckhausen.com/bleeding_brakes.htm for all you need to know. I would take the car back to whoever did the work for you with a printout of Dave Z's procedure and ask them to do it again. I have always been happy with the performance of stock BMW M brakes, they don't have the rock hard pedal of most good multi piston calipers but they slow the car down well with a good pad installed.
Regards
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Jamie Howton
2006 M Roadster Interlagos Blue
2004 645Ci, Stratus Grey
1995 M3 Arctic Silver
I can tell you that the M5 is pretty mushy even when done right compared to some other cars. After I put SS lines in my M Roadster, the brakes felt SOOOO connected compared to the M5's and my M5 has SS lines, too.
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Need4Spd
'01 M5/UUC SSK + Rogue WSR/RE Tranny Mounts+Royal Purple Synchromax/Axxis ULT Pads/StopTech SS Lines/TC Design from BeastPower Anti-roll Bar Brackets/Dinan LtWtFlywheel and Stage 3 suspension/Goodyear F1 Asymmetrics/Vines thrust arms/IATS relocation/10w-60 oil/hardwired Escort 9500i/Euro Armrest/TEC Cupholder/IceLink/PowerChip 91 Gold/TUBIs!/Strong Strut/BSW Stage 1/BT/Angel iBrights 3.0
'05 M3 Imola Cabrio 6MT, Nav, HK
"Is it the sounds that make a BMW a BMW? A BMW is designed to be heard, felt, experienced. So our engines sing. Our steering talks back. And we insist on offering manual transmissions in nearly all our models for drivers who crave them. The result is an almost telepathic oneness with the car. Just as surely as you can hear a BMW, a BMW hears you."
I can tell you that the M5 is pretty mushy even when done right compared to some other cars. After I put SS lines in my M Roadster, the brakes felt SOOOO connected compared to the M5's and my M5 has SS lines, too.
Is it a problem with the size of the master cylinder?
Regards,
Jerry
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'01 Black/caramel
Dinan Stage 3 suspension, SS jet coated headers, ESS SC kit, open brake ducts, Hamann front splitters, TEC cupholder, U.S.(Euro style) tilt/slide armrest, 6k HID fogs, 6k super white low beams, V1/Stealth1, dual head LI, 2.65 diff w/40% lockup/2x dynamic, compact spare, Euro trailer hitch, Mocal oil cooler, ACS type rear spoiler, Rogue custom SSK and tranny mounts, ST 355 BBK (fronts), BP sway bar brackets, Bluetooth retrofit
Is it a problem with the size of the master cylinder?
Regards,
Jerry
It's the relationship between the M5 master cylinder and the size of the caliper pistons. A proper bleed, stainless lines, and a high Cf pad like Axxis Ultimate can help. But it's not going to feel like a Porsche, or even an M3.
I'm working on a solution that might yield a very good pedal feel. That's all I can say for now. I hope to have an update within the next 3 or 4 weeks. I'll post photos and results when I've tested the solution on my car.
2001 540i 6-Speed
StopTech 4-wheel big brake upgrade (ST-60 front/ST22 rear)
M5 3.15 Limited Slip Differential M5 Front Swaybar
Dinan Stage 3 Suspension
Dinan Front Strut Tower Brace
Rogue Octane Short Shifter & Transmission Mounts
European Dash Conversion CDV Deleted (of course!)
Bluetooth, NAV-TV, DVD Player
2006 Chrysler 300C SRT8 w/StopTech ST-60 front/ST-40 rear BBK 2007 Corvette Z51 Coupe 6-Speed w/StopTech Trophy ST-60 front/ST-40 rear 2009 Honda Fit Sport w/NAV w/Acura Integra front calipers, StopTech floating rotors on order
This will be interesting to hear Dave. Just before i read your post, i was thinking "how about a difference MasterCylinder?"
Mike
Quote:
Originally Posted by DZeckhausen
It's the relationship between the M5 master cylinder and the size of the caliper pistons. A proper bleed, stainless lines, and a high Cf pad like Axxis Ultimate can help. But it's not going to feel like a Porsche, or even an M3.
I'm working on a solution that might yield a very good pedal feel. That's all I can say for now. I hope to have an update within the next 3 or 4 weeks. I'll post photos and results when I've tested the solution on my car.
__________________
Mike
91 M5 Alpine White II, Silver Gray 3/90 production
17x8/17x9 M system with PS2, 20mm touring roll bar; Ground Control Coilovers; EAT Chip, CD43; bmw/nardi blackline steering wheel, 3.8 Cam Gears
08 535i / 6 speed
Space Gray; Gray; Sport/Premium/Nav
00 M5 Ti Silver; Imola/black sportiv --Sold
Engine:
Supersprint Headers, Dinan CAI kit and MAFS, Throttle Bodies, Cams, Ported heads, Exhaust, Custom dinan software, Evosport Pullies, Dinan clutch and lightened flywheel; Ignition solutions plasma coils
Suspension:
Dinan Stage 3 with front and rear Strut Tower Braces, Beastpower Sway bar brackets, Dinan Wheels with 275/285 PilotSport, X5 Thrust arm bushings, Stoptech 355mm 4 piston front, 355mm 2 piston rear brake kit, Dinan 3.45 diff
Interior/Misc:
Eurodash, updated steering wheel, Bluetooth retrofit, Sirius Retrofit, hardwired V1, Widescreen Mk4 nav, M audio retrofit, Ice Link, BSW Stage 1 speaker upgrade, bmw towbar
Are you changing the rubber guide pin bushings with brass and SS guide pins? Does the M5 have this type of set up? I run this on my E30 M3 and the pedal is more firm and the pad wear is perfect with both Hawk HP+ and HT10's for the track. Very cost efective as well.
Linear Mode
