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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 12-22-2015, 02:42 PM
nathan2772 nathan2772 is offline
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Location: CA
 
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Mein Auto: 525i 2001
BMW 2001 525i

Hey guys so my car is coming up on 100k miles and I know it needs a maintaine check. The weird thing is that when I press the brake down I can hear fluid rumbling around. What's up with that....do I just need to replace the brake fluid?
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  #2  
Old 12-22-2015, 03:25 PM
acoste acoste is offline
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Mein Auto: 1998 528i; 2010 550i
Does your brake pedal reach the floor slowly if you keep pushing the pedal?
Does it have enough brake fluid?
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  #3  
Old 12-22-2015, 03:26 PM
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Brandon002 Brandon002 is offline
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Check the brake booster. I've seen cars in rainy climates have them fill with water after a leaf was caught in the drain tube.
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Old 12-22-2015, 03:52 PM
Luvinit Luvinit is offline
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Location: Oklahoma
 
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Mein Auto: 03 525i
Quote:
Originally Posted by Brandon002 View Post
Check the brake booster. I've seen cars in rainy climates have them fill with water after a leaf was caught in the drain tube.
Yup. And it can get real bad if the engine sucks water in...
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Old 12-22-2015, 03:53 PM
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Brandon002 Brandon002 is offline
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Yup. And it can get real bad if the engine sucks water in...
True. Engine would have to gulp a lot in at once to do damage, but it's possible.
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  #6  
Old 12-22-2015, 04:59 PM
nathan2772 nathan2772 is offline
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Mein Auto: 525i 2001
Quote:
Originally Posted by Brandon002 View Post
Check the brake booster. I've seen cars in rainy climates have them fill with water after a leaf was caught in the drain tube.
Hey I think that might be it because it just recently started raining where I am!
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