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E90/E91/E92/E93 (2006 - 2013)
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  #1  
Old 12-07-2006, 10:34 AM
charlesey charlesey is offline
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Mein Auto: 3 Series
Exclamation Brake Pedal Problem

It's been since sunday that i have struggled to start my car, 325i , i get inside of my car and as i push the brake pedal for ignition, the brake pedal is hard as a rock, so it's really difficult to start the engine. This only happens the first ignition of the day. I don't really know what may be the cause of the problem, can anybody suggest something??
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  #2  
Old 12-07-2006, 10:41 AM
shingles shingles is offline
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Sounds pretty normal. Brakes are vaccum assisted. Over night, if the the vacuum is gone, the brake pedal becomes harder to push. You can test this by shutting down your car. Pump the brakes a few times... it'll start to get firmer and firmer.
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  #3  
Old 12-10-2006, 12:46 PM
charlesey charlesey is offline
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Yes i know it may sound normal, but why didn't it do it then, it was normal pressed the brake pedal without any effort, something has gone wrong for the brake pedal to harden each day
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  #4  
Old 12-10-2006, 01:24 PM
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suzer suzer is offline
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Weather change, maybe?
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  #5  
Old 12-10-2006, 11:41 PM
charlesey charlesey is offline
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As you mention, weather change, in what way could weather change affect the inability to fully press the brake pedal?

It's just that tomorrow i'm taking it to the dealer, for it to get it checked, i just want my car back to normal. The bad thing is just that it may need to stay overnight so they can experience the issue in the morning.
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Old 12-10-2006, 11:44 PM
vonsazkin vonsazkin is offline
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Mein Auto: 2007 BMW 328xi coupe
Quote:
Originally Posted by charlesey View Post
As you mention, weather change, in what way could weather change affect the inability to fully press the brake pedal?

It's just that tomorrow i'm taking it to the dealer, for it to get it checked, i just want my car back to normal. The bad thing is just that it may need to stay overnight so they can experience the issue in the morning.
They'll give you a loaner BMW while they keep yours.
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  #7  
Old 12-11-2006, 03:00 AM
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thebimmercom thebimmercom is offline
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Mine started doing that when I got my brakes replaced for the third time, since they keep screeching after take-off. But my SA said that it is normal.

BTW, have any of you guys experienced the take-off screech.

After the vehicle comes to a complete stop without any brake noise, it starts making a screeching noise once the brakes are released the vehicle starts moving forward slowly. This noise disappears (or at least can not be heard) once the speed increases a bit.
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  #8  
Old 12-12-2006, 08:52 PM
charlesey charlesey is offline
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But why would it be normal, if before they (the brakes) didn't do it . Something happened that triggered they go hard as a rock
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  #9  
Old 12-13-2006, 03:41 AM
RGBE RGBE is offline
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In a Spanish forum a guy complained about exactly the same thing, diesel engine.
I don't know the end result.
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  #10  
Old 12-15-2006, 12:39 AM
charlesey charlesey is offline
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Could you please post the link to that forum

Thanks!
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  #11  
Old 12-09-2007, 01:38 PM
hmc hmc is offline
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Quote:
Originally Posted by charlesey View Post
It's been since sunday that i have struggled to start my car, 325i , i get inside of my car and as i push the brake pedal for ignition, the brake pedal is hard as a rock, so it's really difficult to start the engine. This only happens the first ignition of the day. I don't really know what may be the cause of the problem, can anybody suggest something??
I have the same problem on my 06 525 recently and the dealer replaced booster and check valve and the problem still persists.

Did you fix your problem? If so, what was the reason?
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