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My slk200 is .... dead?

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by rotty48, Jul 31, 2020.

  1. rotty48

    rotty48 New Member

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    Your Mercedes:
    SLK 200 K - R 171- 2004 - Engine 271944 -
    Hi everyone. I have a "very big" problem with my slk 200 R171 from 2004 and nobody knows how to help me, it is not clear what happened, if not the destruction of all the control units (I don't believe it). I had bought the Car Style Roof Module, to be able to open the windows and the moving roof with the key, simply by pressing the key button. As you know, it is a simple passage between a terminal block located under the driver's side floor and this Module. The work is simple, except that unfortunately I tore one of the wires (very thin brown) from the terminal block by pulling out the pin, which, I suppose, touched something that it created. I think, a short circuit that practically bolooculated almost all the controls of the car. The only thing that works is the engine, the lights and the stops! "Everything else", central locking of doors, windows, roof, dashboard ... it doesn't work. I have been parking it for years in a private space and now I cover it with a sheet for the open windows, but when I use it, unfortunately I MUST use it, I leave it open ... They did the computer test but they did not understand anything. I hope to be luckier next week with an auto electrician that I will have to see. I don't think anyone in the Forum had this problem and I hope it will never happen to you!
    If I don't solve the problem next week, I'll have to demolish it. 10 days ago I replaced "the fuel tank" because it was corroded and leaking (Mercedes price € 2,700 + VAT) ... Now I'm really tired! this car is unfortunate, as the old owner had pointed out to me ... after selling it to me !!
    HELP !!!
     
  2. peterws1957

    peterws1957 Senior Member

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    Location:
    Lancashire
    Your Mercedes:
    sl350 /2004/3.7 and CL65/2009/6.0
    Take it that you've had a look at the fuses?
     
  3. OP
    rotty48

    rotty48 New Member

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    Your Mercedes:
    SLK 200 K - R 171- 2004 - Engine 271944 -
    Yes I checked all the fuses. Front engine compartment box, in the cabin and in the trunk: all ok ...
    Maybe next Wednesday I take the car to an electrician who they say is very competent and we check the ECUs.
     
    peterws1957 likes this.
  4. LostKiwi

    LostKiwi Senior Member

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    Location:
    Midlands / Charente-Maritime
    Your Mercedes:
    '93 500SL-32, '01 W210 Estate E240, 02 R230 SL500 (Malcolm Spec), 04 Smart Roadster Coupe
    Shorting CANbus shouldn't cause huge issues though it has probably filled the ECUs with error codes.
     
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  5. flowrider

    flowrider Senior Member

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    Your Mercedes:
    SL500 (R230)
    If it were me I would disconnect the batteries overnight, reconnect in the morning and clear all the error codes and see what the situation is then.
     
    matthew k, Kev555 and Blobcat like this.
  6. OP
    rotty48

    rotty48 New Member

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    Your Mercedes:
    SLK 200 K - R 171- 2004 - Engine 271944 -
    how do I delete the wrong codes from the control units? Thank you all !
     
  7. OP
    rotty48

    rotty48 New Member

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    Your Mercedes:
    SLK 200 K - R 171- 2004 - Engine 271944 -
    If you disconnect the battery, everything should come back ok? Do you need a computer to clear errors in the control units?
     
  8. Botus

    Botus Senior Member

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    Your Mercedes:
    S500/2010/500
    as eluded too above.... if you have interrupted the can bus (a comms network modern cars have) until you restore to working condition nothing will operate correctly. Pardon me If you have confirmed you fixed the brown wire. But I didn't pick up that you have ?

    once the car is back to normal, dealer spec diagnostic kit will be required to check / clear errors stored on the vehicle.... some stuff resets after three on off cycles of the key (when the fault is no longer seen) but bits of the fun you introduced could be upsetting stuff. So best to check, clear and confirm everything is communicating the way Mercedes designed it.
     
  9. OP
    rotty48

    rotty48 New Member

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    Your Mercedes:
    SLK 200 K - R 171- 2004 - Engine 271944 -
    The electrician connected the two brown wires in the Can terminal block to me but nothing has changed. The car is running, I'm using it, and only the Stop lights work (thank goodness) ... the rest is all dead. How can I check if the connection of the brown wires has restored everything to the original working conditions if nothing works? Tonight I will try to disconnect the battery all night, waiting to take it to the electrician on Tuesday. At Mercedes I don't take it for sure, the last time for a loose NUT, which caused a noise in the potholes in the rear deck of my E200, after an hour of checks they gave me an estimate of 2800 euros to dismantle the whole bridge and change all silentblocks! From a friend of mine, on the bridge, we identified the loose nut by replacing it with a self-locking one and the machine came back perfect for another 5 years ...! I will explain to the eletrauto what you wrote to me. For now, thank you, then I will tell you the latest news, thank you!
     
  10. 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
    Clear all the fault codes with an MB specific code reader. A generic code reader won't help.
    It has to be a code reader capable of interrogating all modules in the car.
     
  11. OP
    rotty48

    rotty48 New Member

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    Your Mercedes:
    SLK 200 K - R 171- 2004 - Engine 271944 -
    Thanks, on Tuesday I ask the electrician, otherwise I will have to resort to Mercedes ... Thanks.
     
  12. flowrider

    flowrider Senior Member

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    Your Mercedes:
    SL500 (R230)
    I dont think an auto electrician will resolve this issue, you need an iCarsoft MBII to reset all the error codes after the batterries have been disconnected over night.
     
  13. 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
    Corrected in bold.
    Autel AP 200/MK808, iCarsoft i980/MB v2.0/CR Pro, Carsoft 7.4 or later or Star will all do the required.
    There are others too.
     
    flowrider likes this.
  14. OP
    rotty48

    rotty48 New Member

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    Your Mercedes:
    SLK 200 K - R 171- 2004 - Engine 271944 -

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