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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 12-20-2011, 06:27 AM
soloblazer soloblazer is offline
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03 530i brakes locked up help please

03 bmw 530i, was driving it yesterday and the car started to viberate bad, then the car started to slow, it seems the brakes all locked up, and the car slow and then would not move. i could hit the gas and the car would not move at all. let it sit for a few hours went back to it and it drove about a mile and then the same thing happened again. a roll back came and got it, and when they winched it up on all 4 wheels were locked up. when we got to my place i was able to back it off and pull in spot but then locked up again. Any ideas of where to start looking, and what could be the problem? thanks for your help. This car has been nothing but problems, are these cars usually problematic? thanks
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  #2  
Old 12-20-2011, 07:29 AM
rush_ad rush_ad is offline
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Can you describe the lock up in detail? It is hard to believe the brakes are locking up, they are a simple mechanism.

I also have a 2003 530i and I did the brakes yesterday in fact. Are you sure it is not an engine problem?
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  #3  
Old 12-20-2011, 07:32 AM
soloblazer soloblazer is offline
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when the brakes start to lock, and i stop, i can press the gas and the rear tires will spin a little but it wont move. Also when the pulled it onto the roll back, it was in neutral and all 4 tires where locked up and dragged all the way up. but after it sat for 30 mins (i guess they cooled down) and it would move just a little more. hope this helps.
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  #4  
Old 12-20-2011, 07:35 AM
cn90 cn90 is offline
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First thing first:
Jack each wheel up (don't remove tire), spin the tire, does it spin.

Otherwise what you described above may be a failing transmission.
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  #5  
Old 12-20-2011, 07:36 AM
soloblazer soloblazer is offline
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i dont think its the transmission as the front wheels are locked up and the car is rear wheel drive, so that would take the transmission out of it. i know for a fact the front wheels are locked up.
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  #6  
Old 12-20-2011, 07:48 AM
cn90 cn90 is offline
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If it is truely locked wheels, the only thing I can think of is the caliper seals seized.
But usually this happens one caliper at a time, not all 4.

Last edited by cn90; 12-20-2011 at 07:49 AM.
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  #7  
Old 12-20-2011, 07:52 AM
cn90 cn90 is offline
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Another thought is the Master Cylinder.
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  #8  
Old 12-20-2011, 08:03 AM
rush_ad rush_ad is offline
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Take off the tires and play around with the brakes. May be you can identify the problem.

Take off the pads and reinstall them...
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  #9  
Old 12-20-2011, 08:17 AM
soloblazer soloblazer is offline
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also when they lock up, the pedal is VERY VERY HARD. can only push it maybe a 1/2-1"
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Old 12-20-2011, 08:20 AM
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Fudman Fudman is offline
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Pull your codes. It might be ABS related.
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  #11  
Old 12-20-2011, 08:21 AM
soloblazer soloblazer is offline
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tried the codes, and no codes...
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  #12  
Old 12-20-2011, 08:25 AM
cn90 cn90 is offline
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Quote:
Originally Posted by soloblazer View Post
also when they lock up, the pedal is VERY VERY HARD. can only push it maybe a 1/2-1"
Buy a new Master Cylinder.
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  #13  
Old 12-20-2011, 09:27 AM
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Quote:
Originally Posted by soloblazer View Post
i know for a fact the front wheels are locked up.
If 'my' front wheels were locked up, the very first thing I would do is jack up the car, & spin the wheels by hand.

Then, I'd remove the wheels, and spin the rotor by hand and take a good look at what's happening.

If I still needed information, I'd have a light person sit in the vehicle to gently press on the brakes as I spun the wheels

What happened when you did that?

Quote:
Originally Posted by Fudman View Post
Pull your codes. It might be ABS related.
Just one caveat: Not all ABS faults show an error code using a 'typical' run-of-the-mill code scanner.

One test of the ABS that 'might' work is simply to disconnect the ABS control module harness to see if that changes anything.

Quote:
Originally Posted by cn90 View Post
Buy a new Master Cylinder.
I don't disagree that it could be the master cylinder ... but wouldn't that usually affect all four wheels?

Last edited by bluebee; 12-20-2011 at 09:29 AM.
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  #14  
Old 12-20-2011, 09:29 AM
soloblazer soloblazer is offline
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Just to clear things up, all 4 wheels lock up when this happens...
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  #15  
Old 12-20-2011, 11:23 AM
soloblazer soloblazer is offline
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just looked at codes and have the p0600 code only.. any ideas?
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  #16  
Old 12-20-2011, 12:32 PM
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Quote:
Originally Posted by soloblazer View Post
just looked at codes and have the p0600 code only.. any ideas?
I, for one, don't memorize Pcodes, especially since some are specific to the engine computer model, version, & date.

What's the description for the P0600 fault code for your particular engine computer?
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  #17  
Old 12-20-2011, 12:33 PM
cn90 cn90 is offline
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Quote:
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just looked at codes and have the p0600 code only.. any ideas?
Have you tried google?
I think the fix is expensive.
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  #18  
Old 12-20-2011, 12:44 PM
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bluebee bluebee is offline
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Quote:
Originally Posted by soloblazer View Post
all 4 wheels lock up when this happens...
My mistake.

I thought you had clarified that only the fronts were locking up.

Re-reading, I see I misinterpreted things (BTW, that's my fault ... but, may I suggest in the future that you use better sentences & capitalization? It's like using your turn signals. It's not for you. It's a courtesy to us from you so we know where you're heading.)

Back on topic, looking up what a P0600 is (that was really 'your' job - not mine) ...
- All OBDII codes, including BMW-specific P1xxx DTCs specific to the engine computer of each BMW (1)

And not knowing your specific engine computer model and build date, a P0600 for 'my' particular model and date is:
ECU: MS43,Engine: M54, from 01.09.01 (Sep 1 2001) till 31.08.02 (Aug 31 2002)
P0600,BMW=217,Serial Communication Link

Assuming that code for my engine means the same as it does for yours, and then simply searching for 'that', gets you a few possibilities:
- 1999 528 p0600 p1747 codes trans in 3 gear?
- E39 P0600 Manual Having Hiccups
- p0600 and transfail safe momentarily, back to normal after restart
- Fault Code: P0600 ???
- etc.

If it really is a serial communications link, then maybe, just maybe, if you have a Windoze laptop available, you might profit from running a quick diagnostic test:

For details, see:
- Making sense of INPA, EDIABAS, NCSExpert, NCS Dummies, DIS/GT1, EasyDIS, & Progman

Last edited by bluebee; 12-22-2011 at 12:33 AM.
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  #19  
Old 12-20-2011, 01:32 PM
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I rarely say this but you may actually need to see a stealer, oops, I mean dealer. P0600 is a comms error and may need to be reset. Not sure what level software needs to do this but it might need the GT-1 or equivalent. Plus this may (or may not) be causing your braking system problem, which is a critical safety system. This is not your run-o- the-mill noise or rough idle issue. It sounds serious. Good luck and report back the outcome. I've never heard of this particular problem before.
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Old 12-20-2011, 02:00 PM
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In my humble opinion P0600 is generated when you tried to force the car to go with the wheels locked. The trans tries to go but the car wound'nt ( Like the mind say no but the flash wants ? something like that)
Follow the simple step remove the wheel but I bet it is something to do with the brakes calipers seizing. After a while they cool off and get back to normal..
If everything else fail then is a trip to the stealer or the indy ( if you have a trusted one)
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  #21  
Old 12-20-2011, 02:03 PM
soloblazer soloblazer is offline
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i reset the codes, drove it about 1 mile and the brakes lock up again, its not a instant lock, but slowly gets harder and harder. Then there is not enough torque to go anymore. This time no codes. When i jacked it up all 4 wheels are tough to turn. i tried unhooking the abs and no change. So i either think its master c or all 4 wheel calipers are sticking at once. any other thoughts?
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  #22  
Old 12-20-2011, 02:10 PM
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Did you check the vacuum booster by the master cylinder ???
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Old 12-20-2011, 02:47 PM
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water damage in Master Cylinder ?
I would check Master Cylinder first and also brake fluid level
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  #24  
Old 12-20-2011, 02:57 PM
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I had the same problem with my E38 740il....replaced the ABS Module twice with no luck. In my research that this error could be caused by a failed steering angle sensor. Maybe worth exploring. Sadly, I let that car go as a trade in....ended up as a "salvage" vehicle. Miss that car still....it was truly a crime of passion.
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  #25  
Old 12-20-2011, 03:09 PM
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Quote:
Originally Posted by microswitch View Post
Did you check the vacuum booster by the master cylinder ???
^^^^^^
this.......something common to all 4 calipers since we've ruled out the abs when the OP disconnecred the ABS......

i'd stop driving till this is sorted to avoid secondry damage to the tranny......

t/shoot with at least the 2 front wheels on jacks.....
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