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Loss of Brakes after Warning Whilst Driving

Discussion in 'Suspension, Steering & Brakes' started by Vx-Man-G, Jul 17, 2017.

  1. Vx-Man-G

    Vx-Man-G Senior Member

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    Joined:
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    Your Mercedes:
    C-Class CDI
    Hi all,

    My friend has a 2003/53 E-Class (either E200 or E220) CDI.

    Recently whilst driving he has been getting a message on the dash to say there is a problem with the braking system, and telling him to stop. With this message he is experiencing a complete dangerous loss of brakes so the car is parked up at present.

    I dont know the extent of the issue, but he says he has spent nearly £1200 trying to sort it.

    Can anyone help please/

    Thanks.
    G.
     
  2. LostKiwi

    LostKiwi Senior Member

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    Location:
    Midlands, not east or west but middle.
    Your Mercedes:
    '93 500SL-32, '01 W210 Estate E240, 04 Smart Roadster Coupe
    Sounds like his SBC pump is on its way out.
    SBC was a fly by wire braking system and the pumps were rated for a fixed number of operations. There was a counter which counted down. MB could reset the maximum operations counter to a higher value (and there are eBay boxes will do the same).
    I believe the counter hitting max won't cause a brake loss however.
    Brake loss sounds very much like the pump failing. He'll need to get it to a specialist to get the codes read (a generic reader won't do it) and go from there. If it is the SBC pump it won't be cheap.

    You'll be pleased to know SBC was abandoned after a few years and your recent purchase doesn't have it.
     
  3. OP
    Vx-Man-G

    Vx-Man-G Senior Member

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    Your Mercedes:
    C-Class CDI
    Phew!! , and thanks. I will advise my friend. Sounds like a very dangerous thing there. I wouldnt like to be driving that thing.
     
  4. Naraic

    Naraic Moderator

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    How long has he been ignoring the message?
     
  5. LostKiwi

    LostKiwi Senior Member

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    Your Mercedes:
    '93 500SL-32, '01 W210 Estate E240, 04 Smart Roadster Coupe
    As Naraic - SBC will send lots of messages warning of issues before they get serious. Fundamentally its no different to master cylinder failure.
     
  6. OP
    Vx-Man-G

    Vx-Man-G Senior Member

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    I dont really know, he only mentioned this to me this weekend. Ill ask him and find out more.
     
  7. AMGeed

    AMGeed Senior Member

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    Your Mercedes:
    2004 W211 E55K ///AMG
    Who on earth has taken £1200 from your mate without replacing the SBC pump?

    Even the expensive main dealer would have replaced the pump for £1500.

    Source the pump yourself and have an indy remove and replace and the job can be done for under £1k

    https://www.autoteilemann.de/k/ersatzteile/bremse/fahrdynamikregelung/hydraulikaggregat-bremsanlage/

    and to make sure you order the correct pump

    https://www.bosch-repair-service.com/DE_de/RTS_Bosch_E_REPAIR/download/Gegenüberstellung_EHB_BX.pdf
     

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