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E39 ABS Module Repair

Finally, I have some time to write about my E39 BMW module repair. Many BMWs have the same problem with this crappy Bosch electronics used for ABS/ASC modules. Many bimmers are asking questions why BMW have made such a stupid engineering decision. But this questions are not asked only by BMW drivers.
Many other cars have the same problem, like Volvo for example. This problem is caused by two things.
- bad ABS/ASC design;
- bad BMW engineering decision.
This things are leading to ABS/ASC module failures. I don’t know about other cars, but in E39 BMW ABS/ASC modules are exposed to direct heating from the engine. Everyday high heating and cooling are destroying the module. This high temperature changes are destroying ABS/ASC module semiconductor elements and their soldering.

You can do the followings things for your BMW:
- if your ABS/ASC module is working correctly, don’t loose time and make a thermal shield to protect your module from overheating!!!
- if your ABS/ASC module is faulty the best thing you can do is to send it to be repaired;
- if you repair/change your ABS/ASC module of your BMW do not forget to make thermal/heat shield;
Some workshops will change all electronic components with others, which have better design and characteristics and they will give you up to 5 years warranty!

I can recommend you this method if you want to spend money for new BMW E39 ABS module - Here you can find brand new BMW Bosch 5.7 ABS/ASC modules for reasonable price

If you want to repair it you can try Module Master – ABS module repair experts

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35 Comments on “E39 ABS Module Repair”

  • qaz wrote on 2 April, 2009, 21:44

    hi,

    i seem to be experiencing a fault with my abs module. do u know how or where to get this fixed. why have you circled some areas.

    thanks
    qaz
  • admin wrote on 3 April, 2009, 20:55

    The most common problem with this Bosch ABS modules is that they are cracked solders. You can send your module for repairing or you try to repair it by yourself :)

  • Issa wrote on 22 July, 2009, 21:43

    How did you open this black cover??? i find it very hard to do so, give me the best way to this, please
  • Issa wrote on 22 July, 2009, 21:47

    what is the tools you have used???
  • Paul wrote on 7 July, 2010, 10:16

    Thank you for the repair procedure, I believe that my abs module when hot de-activates the abs. Please send me photos and procedure for me to repair the module myself. what do i need e.g soldering gun, what type of solder areas that could be the problem and how to identify loose contact points

    Kind Regards – Paul
  • Claudio wrote on 8 July, 2010, 17:03

    I Paul. I’ve your same problem. I do not think that the cracked solder could be do this kind of problem. I think that this problem is caused from a electronic component (like a condensator) with a thermal drift. As soon as possible I try to open and check it. My doubt is only one: the repair How do? I know is not possible remove the component from a special ceramic PCB. Best Regards Claudio
  • Claudio wrote on 8 July, 2010, 17:06

    Claudio.tiziana.gmail.com
  • Claudio wrote on 9 July, 2010, 18:00

    The Admin have right. I open the ABS bosch 5.7. The solders are cracked. Now the abs work fine. Only a suggestion: Buy a solderer with a very thin point. When remove the gel, before the oparations, stay very carefully to thin gold wire because the gel is capable to rip the wire. In any case the problem shoul be located only on the eigth big wire but if you need to replace the gold wire use a particular attention when put the solderer to the gold pitch. I if you stay to much time you loose the pitch. Good luck
  • Danilo wrote on 8 August, 2010, 12:05

    I have the same problem, everything working fine while the engine is cold. when engine reaches the working temp abs and asc light turns on. please send me detailed instructions how to fix it. I will be grateful to you!!!!!!!!!!!!
  • Danilo wrote on 8 August, 2010, 12:06

    danilo.zrenjanin@gmail.com
  • Danilo wrote on 10 August, 2010, 9:40

    danilo.zrenjanin.gmail.com
  • david wrote on 25 August, 2010, 11:04

    Is it possible to get details instructions on how to fix. Thanks so much for all your effort,
    David
    david@surfruotolo.com
  • Ceelo wrote on 30 August, 2010, 10:36

    How do you remove and clean away the gel so as to be able to get a reliable surface to solder? cheers
  • bluebee wrote on 8 September, 2010, 13:31

    Most of the time either the steel resistance-welded power wires lift off their gold bondpads or the infinitesimally thin gold signal wires flop over and touch even though they’re ensconced in heat conducting urethane or silicone goop.

    There’s no harm in opening the Bosch ABS control module because the remanufacturers (BBA Reman, Module Masters, ATE, etc.) will still work on them even if they’ve been previously opened (as they tests them before working on them).

    Here are some links to successful Bosch 5.7 ABS control module repairs:
    http://www.bimmerfest.com/forums/showthread.php?p=5143420&posted=1#post5143420
    http://www.bimmerfest.com/forums/showpost.php?p=5300549&postcount=1
    http://www.bimmerfest.com/forums/showthread.php?p=5453199#post5453199
    http://www.bimmerfest.com/forums/showpost.php?p=4205801&postcount=48
    etc.
  • Gus wrote on 10 September, 2010, 9:44

    I had the same problem with my E39 2002. Replaced both wheel sensors but lights are still on. Now, I am sure its the ABS Module. That will be my next task. Thanks for the info
  • Mirsad wrote on 13 September, 2010, 14:50

    Hi, can someone send me the exact procedure how to repair abs module on my e39 520i 1999?
  • Mirsad wrote on 13 September, 2010, 14:51

    Mirso_1978@hotmail.com
  • Mirsad wrote on 14 September, 2010, 14:04

    My mail mirso_1978.hotmail.com
  • Mirsad wrote on 14 September, 2010, 14:24

    Danilo, ako si dobio postupak mozes li mi proslediti.
  • lawrence yuen wrote on 23 September, 2010, 7:59

    please send to bigweapons@gmail.com
  • midas wrote on 16 October, 2010, 11:05

    Cover can be opened by sharp knife heated by gas fire. Cut it out horizontally. There are many copper wires. So be careful. Can not find cut wires, so poured some bond over the wire and pcb area. Maybe it will work, no warning light due to cutting while driving.
  • Juan Carlos wrote on 16 October, 2010, 15:37

    This ABS in very difficult to repair because the problem is in one of the 4 pairs of connections coming from the speed sensors so if you fix one of then, in the near future any of the other 3 pairs will fail as well, so the job takes around 3.5 hrs using silver solder and a powerful stereo microscope. I fix this units now as a part time for the local mechanics where I live for $290 in Sydney so if you need your BOSCH ABS fix for good call me on 0401 405 798
  • midas wrote on 2 November, 2010, 5:56

    To Juan Carlos,

    I want to get my module repaired. Can you do it for me? What’s your address? Let me call you first. Are you in Sydney(61-2), right?
  • Ric Radulovich wrote on 27 January, 2011, 10:29

    hi, i have a e39 525. could you please send me the procedure for repairing the ads control module
  • david wrote on 6 March, 2011, 15:57

    hello, can u please send me the DIY for the modul, my abs and asc are turned on and it makes a noise under the hood when i turn off the engine , for a e39 530d FL, my email is davidprice58@yahoo.com , thanks
  • ketxup wrote on 20 June, 2011, 23:57

    Hi, i have E39 530D. could you please send me the procedure for repairng the abs control module. thanks

    rigor@orangemail.sk
  • Nadeem wrote on 25 September, 2011, 4:45

    i wonder if someone can help me i have bmw e39 2001 and abs and asc lights are on but when the engine is cold there are no lights. spedo stops after driving 2 to 3 miles. i do not know what to do. i have changed all wheel sensors as it appeared on the OBD but problem is still there.
  • carlos wrote on 5 October, 2011, 5:11

    i also have the same problem when car gets hot. what should i do make a heat sheild or get a new one. please email and let me knw whats the best decision please email me thank you ctoro915@gmail.com
  • Joshua wrote on 19 October, 2011, 0:04

    Hey there – I’ve got a 1999 528i with the same problem. When cold, there are no lights until it gets to temputure, which is when ABS lights come on. Can you send me the manual on how to repair this for good? My email is jadams98408@yahoo.com Thanks a million.
  • kevst1963 wrote on 2 November, 2011, 21:56

    hi can some one send me the testing and diy repair procedure for repairing abs module also is there a place in the uk where i can get it tested repaired thanks
  • kevst1963 wrote on 2 November, 2011, 21:57

    my email is kevst@msn.com
  • vincent wrote on 18 April, 2012, 19:20

    hi got same problem as the most no problem with cold engine but when hot lights come onn
    how do i open the module soldering schouldnt be a problem i believe for me

    some one know how?

    vincentwienhoven@hotmail.com
  • ash wrote on 3 August, 2012, 21:04

    hi please  forward me repair manual to repair abs um as mine also is faulty with abs going light on when car is warmed up 

    my email ad is       ash1049@hotmail.com

    many thanks indeed 

    ash 
  • Andrei wrote on 7 August, 2012, 11:21

    Привет, у меня есть E39 530D.Не могли бы вы прислать мне процедуры для ремонта модуля  управления АБС. спасибо
  • Josef wrote on 5 March, 2013, 15:46

    hi please send me the manual you involved abs / asr module on BMW 523 1999 I think inside the box? thank Peepik@seznam.cz

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