1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

2003 SL500 R230 - Dipped Headlamp Fault

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by kevh, May 22, 2018.

Tags:
  1. kevh

    kevh Senior Member

    Messages:
    60
    Likes Received:
    4
    Joined:
    Dec 27, 2015
    Location:
    Sheffield
    Your Mercedes:
    SL500 (R230) 2003 4966cc
    Can anyone please suggest a solution to my problem. - I have an intermittent issue with my Left dipped headlight. There are times when them the lamp does not illuminate when switched on, and I also get a fault message on the multi function display. In the past this has eventually rectified itself without any intervention whatsoever. My problem is that the car is booked in for MOT on Thursday 24th May, so I need to make sure that the lamp works. The car has bi-xenons (option 618).
     
  2. EmilysDad

    EmilysDad Senior Member

    Messages:
    7,391
    Likes Received:
    1,354
    Joined:
    May 8, 2012
    Location:
    Bury Lancs
    Your Mercedes:
    ML350
    Could be the 'bulb' or the ballast, though bulbs tend to go gradually & turn pink first.
     
  3. Craiglxviii

    Craiglxviii Senior Member

    Messages:
    14,338
    Likes Received:
    3,679
    Joined:
    Sep 6, 2015
    Location:
    Cambs UK
    Your Mercedes:
    W215 CL500 Motorway Queen; W251 R320L Familybenz, S211 E320 Avg Designo Edition now sadly missed.
    Classic ballast failure...
     
  4. star

    star Forum Supporter Authorised Forum Supporter

    Messages:
    5,099
    Likes Received:
    528
    Joined:
    Oct 6, 2004
    Location:
    Reading
    Your Mercedes:
    Smart + others :)
    Or N/s front sam?
     
  5. Craiglxviii

    Craiglxviii Senior Member

    Messages:
    14,338
    Likes Received:
    3,679
    Joined:
    Sep 6, 2015
    Location:
    Cambs UK
    Your Mercedes:
    W215 CL500 Motorway Queen; W251 R320L Familybenz, S211 E320 Avg Designo Edition now sadly missed.
    Shhh I’m trying to keep his morale up!!
     
    star likes this.
  6. OP
    kevh

    kevh Senior Member

    Messages:
    60
    Likes Received:
    4
    Joined:
    Dec 27, 2015
    Location:
    Sheffield
    Your Mercedes:
    SL500 (R230) 2003 4966cc
    Thanks Guys,

    Where can i find the ballast and is it easy enough to replace. An idea of cost would be useful. What is sam?
     
  7. EmilysDad

    EmilysDad Senior Member

    Messages:
    7,391
    Likes Received:
    1,354
    Joined:
    May 8, 2012
    Location:
    Bury Lancs
    Your Mercedes:
    ML350
    SAM .... Signal Acquisition Module ... an expensive box of electrickery :eek:
     
  8. star

    star Forum Supporter Authorised Forum Supporter

    Messages:
    5,099
    Likes Received:
    528
    Joined:
    Oct 6, 2004
    Location:
    Reading
    Your Mercedes:
    Smart + others :)
    Guessing is not a good idea with fault finding.
     
  9. John Laidlaw

    John Laidlaw Senior Member

    Messages:
    20,192
    Likes Received:
    5,519
    Joined:
    Nov 15, 2013
    Location:
    Wirral
    Your Mercedes:
    UnMercs BMW i8 Volvo XC90
    Ns front Sam was my first thought......seeing as I had that issue on mine too...corroded fuse box didn’t help either
     
  10. OP
    kevh

    kevh Senior Member

    Messages:
    60
    Likes Received:
    4
    Joined:
    Dec 27, 2015
    Location:
    Sheffield
    Your Mercedes:
    SL500 (R230) 2003 4966cc
    Guys,

    SAM sounds expensive - can anyone give me an idea of cost?

    I'm going to go down the cheaper route by replacing the ballast. Can anyone advise me how I find the ballast/how to replace it and how much its likely to cost me. Thanks
     
  11. EmilysDad

    EmilysDad Senior Member

    Messages:
    7,391
    Likes Received:
    1,354
    Joined:
    May 8, 2012
    Location:
    Bury Lancs
    Your Mercedes:
    ML350
    The ballast is what powers tho bulb, so follow the wir8ng back. Swap the ballasts over & see if the fault moves.
     
  12. 00slk

    00slk Senior Member

    Messages:
    2,883
    Likes Received:
    1,231
    Joined:
    Dec 1, 2012
    Location:
    Cambridgeshire UK
    Your Mercedes:
    2002 SL55 AMG, 2005 SL500 2009 SLK350
    Good call to try the right hand ballast first, if they are like my Laguna and Jag the ballast's were under the headlight.
    Renault cost £388, Jag was £275, needless to say I purchased to S/H ones for £88. I know not much help for you but Mercedes parts will be priced a bit more :rolleyes:
     
  13. John Laidlaw

    John Laidlaw Senior Member

    Messages:
    20,192
    Likes Received:
    5,519
    Joined:
    Nov 15, 2013
    Location:
    Wirral
    Your Mercedes:
    UnMercs BMW i8 Volvo XC90
    My SAM IIRC was c£300 (going back a couple of years and don’t have the files any more!), obviously plus labour to fit if you don’t do it yourself. I was pleasantly surprised when it did not need coded on Star
     

Share This Page