Hard Brake Pedal!

PuNiShEr · 12-17-2007, 09:29 PM

OK, when I turn the car off and say come back in about 30min to and hour the brake pedal goes rock hard! Its like when you are doing a brake bleed after you have pumped the brakes up. Brake fluid level is spot on the max mark. No evidence of brake fluid leaking anywhere. This happens three or five times a week. Car has 5100 miles on it and it happens hot or cold conditions. Anyone have any clue of whats going on? Dealer appointment this Wednesday.

e90 335i Step Sport Pkg

scpage · 12-17-2007, 09:30 PM

Known issue (SIB). Take it to the dealer, they will fix it.
Here is a copy of the bulletin:
http://www.e90post.com/forums/showpo...49&postcount=9

sflgator · 12-17-2007, 10:19 PM

I get this sometimes, but I haven't found it to be much of a problem.

My car still starts, and as soon as it does, the brake pedal returns to normal. Is this something that absolutely needs to be fixed or is it ok to leave alone for now if it's not causing any real trouble?

getInline · 12-18-2007, 12:32 AM

Quote:

Originally Posted by PuNiShEr

OK, when I turn the car off and say come back in about 30min to and hour the brake pedal goes rock hard!

Quit dropping Viagra in the tank!

Tuned335i · 12-18-2007, 01:23 AM

Quote:

Originally Posted by sflgator

I get this sometimes, but I haven't found it to be much of a problem.

My car still starts, and as soon as it does, the brake pedal returns to normal. Is this something that absolutely needs to be fixed or is it ok to leave alone for now if it's not causing any real trouble?

I have the same thing. I just thought it was normal. Doesn't bother me a bit - I just chalked it up to a quirky BMW thing that I'm not familiar with. Seriously, unless the system is losing fluid, who cares??

sflgator · 12-18-2007, 07:59 AM

Quote:

Originally Posted by Tuned335i

I have the same thing. I just thought it was normal. Doesn't bother me a bit - I just chalked it up to a quirky BMW thing that I'm not familiar with. Seriously, unless the system is losing fluid, who cares??

Yeah, I think it's one of those things that if you bring it in to be fixed, something else will get broken.

e.n335 · 12-18-2007, 08:26 AM

I have the same. Will try to get it fixed. IIRC it's a hydraulic valve out of spec's. BMW knows the problem.

12-17-2007, 09:29 PM	#1
PuNiShEr Banned 21 Rep 87 Posts Drives: 2007 335i Sedan Join Date: Jun 2007 Location: North America iTrader: (0)	Hard Brake Pedal! OK, when I turn the car off and say come back in about 30min to and hour the brake pedal goes rock hard! Its like when you are doing a brake bleed after you have pumped the brakes up. Brake fluid level is spot on the max mark. No evidence of brake fluid leaking anywhere. This happens three or five times a week. Car has 5100 miles on it and it happens hot or cold conditions. Anyone have any clue of whats going on? Dealer appointment this Wednesday. e90 335i Step Sport Pkg
	Appreciate 0 Tweet Quote

12-17-2007, 09:30 PM	#2
scpage Private First Class 5 Rep 179 Posts Drives: 335i Join Date: Feb 2007 Location: SEUSA iTrader: (0)	Known issue (SIB). Take it to the dealer, they will fix it. Here is a copy of the bulletin: http://www.e90post.com/forums/showpo...49&postcount=9
	Appreciate 0 Quote

12-17-2007, 10:19 PM	#3
sflgator Major General 148 Rep 5,389 Posts Drives: '09 MB C63 AMG & '08 MB GL450 Join Date: Oct 2006 Location: U.S. iTrader: (1)	I get this sometimes, but I haven't found it to be much of a problem. My car still starts, and as soon as it does, the brake pedal returns to normal. Is this something that absolutely needs to be fixed or is it ok to leave alone for now if it's not causing any real trouble? __________________ \|2009 RENNtech MB C63 AMG \| Black/Black Leather/Black Maple \| Premium II \| MultiMedia \| iPod \| \| TeleAid \| Charcoal Filter Delete \| BMC High-Flow Air Filters \| High-Flow Secondary Cats \| Clear Side Markers \|
	Appreciate 0 Quote

12-18-2007, 08:26 AM	#7
e.n335 Moderator 270 Rep 4,481 Posts Drives: e93 ///M3 DCT, 07/2009 Join Date: Feb 2007 Location: Switzerland, ZH iTrader: (0)	I have the same. Will try to get it fixed. IIRC it's a hydraulic valve out of spec's. BMW knows the problem.
	Appreciate 0 Quote