Hard Brake Pedal
#1
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Join Date: Dec 2013
Location: san carlos, ca
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My Ride: 2006 530xi touring
Model Year: 2006
Engine: 3 liter
Hard Brake Pedal
I got a hard brake pedal on my 2006 Station wagon today. It is a little strange that ...
1. The brake pedal is OK for the first half of the travel, and then I have to push the hell out of it for the last half of the travel.
2. I can test the vacuum assist by turning the car off, pump the pedal a few times until it goes hard (vacuum is gone), start the car, and feel the pedal pushes down a lot meaning it passes the vacuum test.
So, it acts like there is vacuum there but not enough.
What is wrong?
1. The brake pedal is OK for the first half of the travel, and then I have to push the hell out of it for the last half of the travel.
2. I can test the vacuum assist by turning the car off, pump the pedal a few times until it goes hard (vacuum is gone), start the car, and feel the pedal pushes down a lot meaning it passes the vacuum test.
So, it acts like there is vacuum there but not enough.
What is wrong?
#2
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Join Date: Aug 2012
Location: Indiana
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My Ride: 2006 530xi w/Sport, Premium, Cold weather. Silver Gray Metallic, Black Dakota leather interior.
Of course that is not normal, I would have the codes read to see if anything shows up there.
#5
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#10
Second-hand brake boosters are pretty common and cheap.
They don't fail very often and every E60/E61 that is broken has one. I think they're the same for all engine sizes too.
Fitting isn't that bad - the main headache is that you have to completely bleed the entire braking system because you need to disconnect the brake lines to the master cylinder.
They don't fail very often and every E60/E61 that is broken has one. I think they're the same for all engine sizes too.
Fitting isn't that bad - the main headache is that you have to completely bleed the entire braking system because you need to disconnect the brake lines to the master cylinder.