Is It Necessary To Bleed Brakes After Replacing Brake Pads?

hl0m4n · 08-26-2009, 07:07 PM

after replacing brake pads, is it needed to bleed the brakes/change brake fluid or do i just need to bed in the new brake pads and g2g? help much appreciated. thanks.

Bubbles · 08-26-2009, 07:37 PM

Quote:

Originally Posted by hl0m4n

after replacing brake pads, is it needed to bleed the brakes/change brake fluid or do i just need to bed in the new brake pads and g2g? help much appreciated. thanks.

No, but it's ideal to bleed especailly if the fluid hasn't been changed. The wheels are already off so why not. For tracking, I'd rather spend the time to bleed the brakes than get a soft pedal.

VMRWheels · 08-26-2009, 08:29 PM

Quote:

Originally Posted by Bubbles

No, but it's ideal to bleed especailly if the fluid hasn't been changed. The wheels are already off so why not. For tracking, I'd rather spend the time to bleed the brakes than get a soft pedal.

Ditto! I would rather have a nice firm pedal feel to accompany my new pads. Anyway, it doesn't take much time either.

-Charles@VMRWheels

FCP Euro · 08-26-2009, 08:47 PM

What they said. Just make sure that when you bleed them, you use a good quality power bleeder. Not only will it make life easier, there is no way to get air in the system.

chaz58 · 08-29-2009, 08:20 AM

You don't have to, but...

If you press the piston back in without opening the bleeder valve you are pushing gunk upstream in the system which isn't particularly good (its not the end of the world, just not optimum).

If you open the bleeder valve (when compressing the piston), you need to bleed. Its a good idea to change the fluid every two years anyway...

Lowcruzr · 08-30-2009, 08:46 PM

Quote:

Originally Posted by Bubbles

No, but it's ideal to bleed especailly if the fluid hasn't been changed. The wheels are already off so why not. For tracking, I'd rather spend the time to bleed the brakes than get a soft pedal.

Amen! You're already in there, so just bleed them as you go. It's super simple and definitely helps prevent boiling while on track by purging old fluid that has soaked up water over time.

Perfectus · 09-07-2009, 12:44 AM

Anyone have a recommendation on a good power bleeder?

08-26-2009, 07:07 PM	#1
hl0m4n Major General 2322 Rep 5,627 Posts Drives: BMW Join Date: Nov 2006 Location: NY iTrader: (58)	Is It Necessary To Bleed Brakes After Replacing Brake Pads? after replacing brake pads, is it needed to bleed the brakes/change brake fluid or do i just need to bed in the new brake pads and g2g? help much appreciated. thanks. __________________ Cars: 07 335i ► 08 328i ► 11 328xi ► 13 M3 ► 17 M4 ► 14 M6
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08-26-2009, 08:47 PM	#4
FCP Euro Lieutenant 10 Rep 462 Posts Drives: Volvo 850 T5 Join Date: Aug 2009 Location: Old Saybrook, CT iTrader: (0)	What they said. Just make sure that when you bleed them, you use a good quality power bleeder. Not only will it make life easier, there is no way to get air in the system. __________________ sales@fcpeuro.com FCP Euro - European Car Parts Specialists
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08-29-2009, 08:20 AM	#5
chaz58 Captain 15 Rep 701 Posts Drives: 328iT Join Date: Oct 2007 Location: Detroit Burbs iTrader: (0)	You don't have to, but... If you press the piston back in without opening the bleeder valve you are pushing gunk upstream in the system which isn't particularly good (its not the end of the world, just not optimum). If you open the bleeder valve (when compressing the piston), you need to bleed. Its a good idea to change the fluid every two years anyway... __________________ _________________________________________________
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09-07-2009, 12:44 AM	#7
Perfectus Major 35 Rep 1,252 Posts Drives: e92 335i/F10 528XI Join Date: Jun 2009 Location: NOVA/MD iTrader: (10)	Anyone have a recommendation on a good power bleeder? __________________ 2012 528XI Saphire Black Stock for now 2007 e92 335i - Monaco Blue Injen DCI w/ Cyba Scoop - M-Tech Rear - ///M3 Rear Lip Spoiler - ///M5 SMG Shift Knob & iDrive Knob - BMW Performance Hand Brake - BMWCCA Member
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