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SL55 Alternator removal

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by 00slk, Aug 5, 2019.

  1. 00slk

    00slk Senior Member

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    Any one got any information on these alternators if all R230 units are the same.
    Mine is over charging and the regular is not allowing the consumer battery to charge fully, so looking some guidence on removing the alternator.
     
  2. LostKiwi

    LostKiwi Senior Member

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    Your Mercedes:
    '93 500SL-32, '01 W210 Estate E240, 02 R230 SL500 (Malcolm Spec), 04 Smart Roadster Coupe
    SL55 alternator part number:
    A0131548502 (180A)
    Regulator part number:
    A0031544906

    SL500 alternator part number:
    A0131548202 (150A)
    Regulator part number:
    A0031545406 or later A0031544906

    So alternator is different, later regulator is same
     
  3. AMGeed

    AMGeed Senior Member

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    Get in touch with Gav (merc85) if you need a new Bosch alternator. Excellent service and a good price.
     
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  4. OP
    00slk

    00slk Senior Member

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    Excellent, thanks for that, hoping to get sorted before the weekend with this issue :)
     
  5. OP
    00slk

    00slk Senior Member

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    Thanks Alistair ;)
     
  6. OP
    00slk

    00slk Senior Member

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    I have sent Gav a PM don't know anyother way to contact him.
     
  7. AMGeed

    AMGeed Senior Member

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    This is his website if you need to contact him.
    https://www.cgmotorfactors.com/contact
     
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  8. OP
    00slk

    00slk Senior Member

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  9. OP
    00slk

    00slk Senior Member

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    Thanks Roger, alternator ordered and I will collect it tomorrow from Harwich to make sure I have it for the weekend :cool:
     
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  10. AMGeed

    AMGeed Senior Member

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    Excellent. The service Gav provides is top quality.
     
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  11. OP
    00slk

    00slk Senior Member

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    Alternator out, thanks to my nextdoor neighbour :)

    IMG_20190806_193215.jpg

    Now celebrating :D

    IMG_20190806_194300.jpg
     
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  12. LostKiwi

    LostKiwi Senior Member

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    Creme de Menthe and Walkers crisps? Odd combination.....
     
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  13. Blobcat

    Blobcat Moderator

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    I’d go and see a doc with a sample like that :rolleyes:o_O
     
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  14. John Laidlaw

    John Laidlaw Senior Member

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    Roast chicken crisps? Work of the devil
     
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  15. OP
    00slk

    00slk Senior Member

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    Well, excuse me!! :alien: :alien:
    IMG_20190806_220904.jpg

    Yummy :p
     
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  16. OP
    00slk

    00slk Senior Member

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    We're and odd breed :oops:
     
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  17. OP
    00slk

    00slk Senior Member

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    New alternator collected, now for the lovely job to refit it. :D
    IMG_20190807_153848.jpg

    Also put the consumer battery on charge over night and just removed it. Reads 12.9v as apposed to 12.0v reading when it was in the car. It better be the alternator and not the battery after being told the battery is fine, it's your alternator not charging!!
    Let the refitment begin.......
     
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  18. OP
    00slk

    00slk Senior Member

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    Well that wasn't so bad after all, 30 minutes to refit alternator, undertrays, electric fan, belt and plastic engine cover :cool: Seems to be working fine so far :D
     
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  19. OP
    00slk

    00slk Senior Member

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    Well there seems to be a problem with my charging system, no air and no cruise, consumers off line again and after a 40 minute drive battery reads 11.9volts, an improvement from 11volts I guess.
    So alternator not charging or a dud 8 month old battery. I have my old battery on charge and after 8 hours it is reading 13.6volts. The new battery made 12volts after 21hours on charge and after 30 odd minutes of driving read 11. Something volts, so clearly a charging issue?
    Hence new alternator, which looks like it wasn't the alternator :rolleyes:
    More checking required later today.
     
  20. LostKiwi

    LostKiwi Senior Member

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    Check charging voltage at both batteries.
    If I were to guess I'd say the charge control module is bad assuming everything else is good. Given you have 2 r230s try swapping it over perhaps. They're a bit eye watering to buy....
     

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