W211 - Convenience features disabled

Discussion in 'Electronics' started by Gollom, Feb 13, 2013.

  1. Gollom

    Gollom Hardcore MB Enthusiast

    Messages:
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    Joined:
    May 10, 2006
    Location:
    Preston, Lancs
    Car:
    S211 E220CDi AvantGarde, NTG 2.5 with Linguatronic
    This is still happening. Had a new convenience battery installed by TMS and the message vanished for about 5 miles but is now back on. Biggest issue of course is no heated rear screen!

    Any ideas?
     
  2. mersum1es

    mersum1es Hardcore MB Enthusiast

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    Finland
    Car:
    W219, W220, W210
    That alert is due to main battery voltage. Can't remember your repair actions; What's the battery voltage, what's the alternator voltage? (I guess it must be low if part of the function shut down). Is the BSG module software updated? Is BSG module tested? Is isolation relay of the auxiliary battery tested? All tests can be done via star guidance and multimeter/clamp current meter...
     
    1 person likes this.
  3. OP
    OP
    Gollom

    Gollom Hardcore MB Enthusiast

    Messages:
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    Joined:
    May 10, 2006
    Location:
    Preston, Lancs
    Car:
    S211 E220CDi AvantGarde, NTG 2.5 with Linguatronic
    Any other advice please?
     
  4. Benza750

    Benza750 Hardcore MB Enthusiast

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    Jan 31, 2010
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    Wirral
    Car:
    Mercedes C32 AMG & ML320 petrol
    As above, needs to go on star & have above checked & tested
     
  5. mafya

    mafya Hardcore MB Enthusiast

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    May 22, 2011
    Location:
    Sheffield
    Car:
    mercedes e270cdi w211
    Are you doing short journeys ie not giving main battery chance to charge up?
    Had this issue with mine and changed the battery to a Bosch silverline.
     
  6. Alps

    Alps MB Club Veteran

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    E63 Weistec AMG, E55 2004 Silver(SOLD), C36 AMG 1997 (SOLD)
    sounds like battery control module, first stop will be to make sure it has the updated software, needs a STAR hooked up
     

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