Problem pressing brake pedal when starting car - BMW 3-Series (E90 E92) Forum

e92phreak · 10-10-2008, 12:51 AM

Not sure if anyone else has encountered this before, but I know it's been discussed in some chat threads.

I have an 07 March build E92 335i Steptronic. To start my car, I depress the brake pedal and push the start button. Lately, when I start my car after it's been parked overnight, the brake pedal is very stiff and does not press very far down. In fact, it barely allows me to step on it. It's like it can only be pressed down an inch or so.

I know Purple All Sectors has this problem as well, though he doesn't drive his car for a week at a time.

It seems to only happen when the car hasn't been driven for awhile. If I drive it around, park for a short period, then start it up again, the brake pedal presses down fine.

Anyone else have this problem before?

duyh · 10-10-2008, 12:53 AM

i did for a while and then it went away

pedev1 · 10-10-2008, 12:57 AM

Do a search on brake booster.

e92phreak · 10-10-2008, 12:59 AM

Quote:

Originally Posted by pedev1

Do a search on brake booster.

Thanks for the quick response!!!

1clean335i · 10-10-2008, 06:46 AM

theres a check valve on the vacumm hose that goes to the brake booster that goes bad... take it to the dealer. theres an sib out for it

mr.bob · 10-10-2008, 07:11 AM

SAME PROBLEM HERE. Mine occurs about 4-5 times per week. Any ideas for a fix??

aut0sh0cker · 10-10-2008, 09:35 AM

Quote:

Originally Posted by mr.bob

SAME PROBLEM HERE. Mine occurs about 4-5 times per week. Any ideas for a fix??

thats like my car...

1clean335i · 10-10-2008, 09:36 AM

Quote:

Originally Posted by mr.bob

SAME PROBLEM HERE. Mine occurs about 4-5 times per week. Any ideas for a fix??

did you not read my post? it is right above yours...

10-10-2008, 12:51 AM	#1
e92phreak General Drives: E92 335i TiAg/E46 323i TiAg Join Date: Mar 2007 Location: CA Posts: 21,750 iTrader: (1) Garage List 2007 E92 335i [4.50] 2000 E46 323i [0.00]	Problem pressing brake pedal when starting car Not sure if anyone else has encountered this before, but I know it's been discussed in some chat threads. I have an 07 March build E92 335i Steptronic. To start my car, I depress the brake pedal and push the start button. Lately, when I start my car after it's been parked overnight, the brake pedal is very stiff and does not press very far down. In fact, it barely allows me to step on it. It's like it can only be pressed down an inch or so. I know Purple All Sectors has this problem as well, though he doesn't drive his car for a week at a time. It seems to only happen when the car hasn't been driven for awhile. If I drive it around, park for a short period, then start it up again, the brake pedal presses down fine. Anyone else have this problem before? __________________ 07 E92 335i \| TiAg \| Step \| Padl \| Cmft \| Alum Trm \| PDC \| Nav \| Assist \| Sat \| Lthr \| Prem \| Sprt \| Rear Splr \| RDSport Quads \| iPod \| V1 \| LT Refl \| VS Clear Bra \| OEM Lip \| KWV2 \| Mtec Sides \| BBS LM-R 00 E46 323i \| TiAg \| 5sp \| Sport \| Roof \| RDSport Cams \| RDSport tune \| RDSport Shift \| Volk LE37 \| M3 spoiler \| PSS9 \| SuperSprint \| Brembo
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10-10-2008, 06:46 AM	#5
1clean335i Perf BMW mag issue 147, 159 Drives: Project Estoril Join Date: Feb 2007 Location: Central Florida Posts: 6,742 iTrader: (30) Garage List 2013 335i M-sport [0.00] 2011 X5 xdrive35i M ... [0.00] 2009 335i M-sport [0.00] 07' 335i Sedan [0.00]	theres a check valve on the vacumm hose that goes to the brake booster that goes bad... take it to the dealer. theres an sib out for it __________________ '13 Estoril Blue 335i M-sport *Don't PM me!* Message me here- http://www.facebook.com/ProjectEstoril

10-10-2008, 07:11 AM	#6
mr.bob Private Drives: 2008 335XI Coupe; 2004 325 Join Date: Mar 2008 Location: Connecticut Posts: 69 iTrader: (0)	Hard Brake Pedal SAME PROBLEM HERE. Mine occurs about 4-5 times per week. Any ideas for a fix??

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10-10-2008, 12:53 AM	#2
duyh Team Blop Drives: 04 B6 S4 & 13 E92 M3 Join Date: Aug 2008 Location: Blop HQ, WA Posts: 494 iTrader: (0)	i did for a while and then it went away

10-10-2008, 12:57 AM	#3
pedev1 Private First Class Drives: E92 M3 Join Date: Oct 2007 Location: AZ Posts: 115 iTrader: (1)	Do a search on brake booster.