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"Service Brake - Visit Workshop" message

Discussion in 'Wheels, Tyres, Brakes & Suspension' started by Denisl, Jun 16, 2009.

  1. Denisl

    Denisl New Member

    Messages:
    20
    Joined:
    Mar 21, 2006
    Location:
    West Midlands
    Car:
    C207 350CDI
    Hi All,

    I have now got the dreaded warning! I have a W211 52 plate 270 diesel, I have had front discs + Pads replaced ( needed doing anyway) and rear are fine. Message still remains, with regards to the SBC I no longer hear it priming when I open the door / flip remote but it primes when touch brake pedal, does this mean the brake switch is working? that would only leave the SBC unit itself as the culprit, i think? Car still holds on hills etc so suspect unit still has some functionality.

    Interested in comments especially in repect of Mercedes approach on replacement of this unit foc? Car now has 154k and has not seen a dealership in 3 years as serviced at local garage. Any views welcome.
     
  2. corned

    corned Hardcore MB Enthusiast

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    Location:
    Living in error with Maude at Cap Ferrat
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    car
    My first thought, fwiw, is that this message is nothing to do with SBC. The w211 is clever enough to distinguish between the SBC unit and other brake parts. If the unit was faulty in some way, I would expect the message to clearly identify the SBC system as the culprit.

    What is not quite clear from your post: was the message showing before you changed the brakes?

    The SBC unit on my s211 does not always burp into life every time I open the door, and everything seems to work satisfactorily.

    I believe (open to correction here) that the SBC pump works on accumulated pressure, therefore you may well not hear the pump going when you unlock, unless the car has been standing for more than a day or so and the pressure has had time to dissipate.

    I think you need to look at other aspects of the braking system, IMHO. Are the fluid levels OK, for example? Or are the wheel speed sensors' wires connected properly?

    Edit: Although I think the SBC unit will be found to be serviceable, even if not I think your chances of warranty replacement in your case will be rather unlikely. Although that is not to say you shouldn't try!
     
    Last edited: Jun 16, 2009
  3. ABBY

    ABBY Active Member

    Messages:
    65
    Joined:
    May 7, 2009
    Location:
    surrey
    Car:
    c320 x reg, c200k coupe evo,vito traveliner 04,08 cls 320 cdi and a couple of ford galaxies
    hi
    did you replace the brake wear sensors when you replaced pads? these are close circuit so removing or broken wire will show the same msg. (its a fail safe circuit)
    good luck

    Abby
     
  4. mirras

    mirras Hardcore MB Enthusiast

    Messages:
    598
    Joined:
    Jun 23, 2006
    Location:
    Ayrshire
    Car:
    W221 S320 CDI in Silver
    I just had the same message on my 2003 SL500. It was last serviced at an independent so I took it back there and they told me the SBC pump had reached the maximum number of pedal presses.

    I took it to my local MB dealer who confirmed this to be the issue and despite the car being 6 years old, serviced at an independent and bought from and independent the MB dealer carried out £1500 worth of work and replaced the SBC unit FOC. The dealer told me that they 'reset' the pedal count at each service and the independent had failed to do this hence the maximum had been reached!!! Not sure I was totally comfortable with that.
     
  5. BlackC55

    BlackC55 Authorised Forum Sponsor Authorised Forum Sponsor

    Messages:
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    Location:
    Horndean, Portsmouth, Hampshire, Southsea
    Car:
    C43 AMG with a 55 engine and supercharger, MK1 Caddy, S500, etc
    There is a 10 year warranty with SBC units. Your problem has nothing to do with changing brake pads etc.
     
  6. mirras

    mirras Hardcore MB Enthusiast

    Messages:
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    Jun 23, 2006
    Location:
    Ayrshire
    Car:
    W221 S320 CDI in Silver
    That's what my SBC unit was changed under, MB UK paid for the work to be done.
     
  7. OP
    OP
    Denisl

    Denisl New Member

    Messages:
    20
    Joined:
    Mar 21, 2006
    Location:
    West Midlands
    Car:
    C207 350CDI
    Car booked in to Wolverhampton for Wed, spoke to chap from workshop on phone who sounded vague about SBC issues and in particular MB goodwill record on these.
    I will let everyone know how it goes.... heres hoping for a favourable result.
     
  8. OP
    OP
    Denisl

    Denisl New Member

    Messages:
    20
    Joined:
    Mar 21, 2006
    Location:
    West Midlands
    Car:
    C207 350CDI
    More news

    hi can't take car in tomorrow so need to re-book, in the meantime I have had some diagnostics which show the following faults:

    C2534 Hydraulic fault, right front separating valve
    C25D7 Brake light switch
    C22BD Inlet valve RF
    C223D Inlet valve LF

    Can anyone shed any wisdom on these?

    Thanks again

    Denis
     
  9. Druk

    Druk Administrator Staff Member

    Messages:
    4,936
    Joined:
    May 28, 2004
    Location:
    Not far from Edinburgh.
    Car:
    2011 S212 E350CDi. 1981 R107 300TurboDiesel.
    1 person likes this.
  10. login_user

    login_user Hardcore MB Enthusiast

    Messages:
    278
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    Jun 22, 2008
    Location:
    Hampshire
    Car:
    CLK350 CAB Sport (w209)
    This has just come up on mine, does it come up if the rear pads are low as mine are due to be replaced.
     
  11. crockers

    crockers Hardcore MB Enthusiast

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    Car:
    XC60 MY2014 SeLux Nav plus lot and lots of toys...
    Ok I am going to show my ignorance -- what is a SBC and what cars have it ?

    Thanks
     
  12. glojo

    glojo Hardcore MB Enthusiast

    Messages:
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    Location:
    Torquay
    Car:
    S211 Sprinter 213CDI, & the new T-class
    Aquickgoogle will give you the answer but don't forget to include the maybach and I believe the SLR :)
     
  13. crockers

    crockers Hardcore MB Enthusiast

    Messages:
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    Location:
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    Car:
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    Thanks

    SBC


    lucky I have a lowly C class then..:D
     
  14. OP
    OP
    Denisl

    Denisl New Member

    Messages:
    20
    Joined:
    Mar 21, 2006
    Location:
    West Midlands
    Car:
    C207 350CDI
    SBC sorted

    Hi thought I would post the good news. Car been into dealers and within 30 mins had confirmation that it was the SBC that needed replacing and that Mercedes would pick up the full cost! Job done next day and everything superb.

    Denis:bannana:
     
    1 person likes this.
  15. Druk

    Druk Administrator Staff Member

    Messages:
    4,936
    Joined:
    May 28, 2004
    Location:
    Not far from Edinburgh.
    Car:
    2011 S212 E350CDi. 1981 R107 300TurboDiesel.
    Excellent. :thumb: Although I hope you haven't been running around with SBC warnings since June?
     
  16. alexander patie

    alexander patie Hardcore MB Enthusiast

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    Location:
    sunny suffolk
    really? this sounds very wrong, i suspect a pile of anti independent BS. what would the point be of a pedal count that could be reset? and if it was the indies fault why would MB honour the warranty?
     
  17. OP
    OP
    Denisl

    Denisl New Member

    Messages:
    20
    Joined:
    Mar 21, 2006
    Location:
    West Midlands
    Car:
    C207 350CDI
    No SLK driven in summer
     
  18. Smiley

    Smiley Hardcore MB Enthusiast

    Messages:
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    Jun 29, 2008
    There are going to be some very cheap w211s for sale in 2013!
     
  19. Tan

    Tan Hardcore MB Enthusiast

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    Oct 2, 2002
    Location:
    Woodford Green
    Car:
    W140 S-Class, Porsche Cayenne and Porsche Boxster
    Hi

    My car came up this morning with the Brake Service warning, does anyone know if Mercedes are still paying for the replacement of the SBC pump?
     
  20. gl boy

    gl boy Hardcore MB Enthusiast

    Messages:
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    Location:
    church stretton/shropshire
    Car:
    Mercedes ML 350 & Mercedes E400 AMG line edition , Porsche 968 sports
    Sorry to bring this thread up ,
    My 2011 350sl had just had,,,, (!) service brake consult workshop ,,, in white not red .. Any help please
     

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