Hard brakes on cold start - BMW 3-Series (E90 E92) Forum

Rae604 · 10-09-2012, 04:21 PM

I have a 2006 325i

Iv noticed recently on cold starts iv been having a hard time pressing on the brakes to start the car, there's a lot of resistance. After the car is up and running the brakes go back to normal, I was just wondering if that's normal or is something wrong ?

Please let me know what you guys think

Thanks

Rae604 · 10-10-2012, 09:42 PM

Anyone ?

Rmk392 · 10-10-2012, 10:10 PM

Doesn't sound good. Does the car still stop in normal braking distance when it's hard? Could be many things from a bad brake booster to who knows. I would go to a shop to diagnose

Rae604 · 10-10-2012, 10:31 PM

After i turn on the car in the morning, the rest of the day is fine. No problems what so ever, brakes fine at stop lights, stops you name it. It's just in the morning when I first try turning on the car, there's just a lot of resistance on the brake but once the car is up and running the brakes go back to its original position.

This happen rarely, I read something yesterday and I think it's the vacuum valve in the booster brakes.

Tzu · 10-11-2012, 11:32 AM

There was an SIB for this somewhere. AT guys couldnt even depress the brake pedal enoguh to start the car. I forget what the cause was, but I think it was a vacuum line to the booster or something...

10-09-2012, 04:21 PM	#1
Rae604 Enlisted Member Drives: 2006 325i Join Date: Sep 2012 Location: Vancouver Posts: 32 iTrader: (0)	I have a 2006 325i Iv noticed recently on cold starts iv been having a hard time pressing on the brakes to start the car, there's a lot of resistance. After the car is up and running the brakes go back to normal, I was just wondering if that's normal or is something wrong ? Please let me know what you guys think Thanks
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10-10-2012, 09:42 PM	#2
Rae604 Enlisted Member Drives: 2006 325i Join Date: Sep 2012 Location: Vancouver Posts: 32 iTrader: (0)	Anyone ?

10-10-2012, 10:10 PM	#3
Rmk392 Second Lieutenant Drives: E92 Join Date: Apr 2012 Location: Philly Posts: 298 iTrader: (0)	Doesn't sound good. Does the car still stop in normal braking distance when it's hard? Could be many things from a bad brake booster to who knows. I would go to a shop to diagnose

10-10-2012, 10:31 PM	#4
Rae604 Enlisted Member Drives: 2006 325i Join Date: Sep 2012 Location: Vancouver Posts: 32 iTrader: (0)	After i turn on the car in the morning, the rest of the day is fine. No problems what so ever, brakes fine at stop lights, stops you name it. It's just in the morning when I first try turning on the car, there's just a lot of resistance on the brake but once the car is up and running the brakes go back to its original position. This happen rarely, I read something yesterday and I think it's the vacuum valve in the booster brakes.

10-11-2012, 11:32 AM	#5
Tzu Major Drives: 335i Join Date: Jun 2010 Location: Toronto Posts: 1,198 iTrader: (1)	There was an SIB for this somewhere. AT guys couldnt even depress the brake pedal enoguh to start the car. I forget what the cause was, but I think it was a vacuum line to the booster or something...