DSC light comes on occasionally

Discussion in '1st Generation: 2002–06 R50, R53 & 2004–08 R52' started by bcgreen, Nov 25, 2019.

  1. bcgreen

    bcgreen Member

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    #1 bcgreen, Nov 25, 2019
    Last edited: Nov 25, 2019
    Occasionally the DSC light is on. I recently had my clutch replaced, serpentine belt changed and a 17% pulley installed and wondered if there is a connection. This service was done 6 days ago. Service Engine Soon came on this morning after the car sat for 1 and a 1/2 hours. No driveability issues.
    2004 Mini Cooper S.
     
  2. Crashton

    Crashton Club Coordinator

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    Check the wire connections for the wheel speed sensors at the front wheels.
     
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  3. bcgreen

    bcgreen Member

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    #3 bcgreen, Nov 25, 2019
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    Thanks, will check it out.
     
  4. fishmonger

    fishmonger Well-Known Member

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    could be dirt between hub and sensors. Takes a 10 mm wrench to pull them out, clean the tip, and then you can use a bunch of Q-tips inside the hole of the sensor to clean the hub surface where it meets the sensor (rotate wheel while putting pressure on the alcohol soaked Q-tip). I just removed my hubs entirely while doing the R56 aluminum trailing arm conversion and those magnetic (?) hub surfaces and sensor tips were caked with some tough black gunk. I never had DSC light issues, but it can't be a good thing when there is grime accumulating where a sensitive device is monitoring wheel speed. My car is generally super clean, but that's a place nobody ever cleans unless you disassemble stuff. 100k miles and the bearings in the rear hubs were also pretty much done.
     
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  5. MCS02

    MCS02 Moderator
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    Do you know if there are any codes showing?
     
  6. bcgreen

    bcgreen Member

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    Good info
     
  7. bcgreen

    bcgreen Member

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    Will go to O'Reillys.
     
  8. Dave.0

    Dave.0 Helix & RMW Powered
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    Turn off DSC, you don’t need that “nanny” feature.
     
  9. bcgreen

    bcgreen Member

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    Won't turn off.
     
  10. Dave.0

    Dave.0 Helix & RMW Powered
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    Then it’s fine. I have had my DSC coded off for over 8 years. Yeah the little light is on but, I don’t care.
     
  11. bcgreen

    bcgreen Member

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    What about "Service Engine Soon"
     
  12. Crashton

    Crashton Club Coordinator

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    More than likely they won't be able to read the MINI code unless their reader knows the secret handshake.

    I agree with Dave about nannies in cars. My MINI didn't have DSC, I used the money it cost to buy the LSD. I'm thinking you may well need to fix your issue. The wheels speed sensors are there for the ABS to work & for me that's a good nanny to have.

    Service engine soon. Check what needs to be done by going into the settings. Push the button on the turn signal stalk & go through there. You should find it.
     
  13. bcgreen

    bcgreen Member

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    Had a scan done and it read as P0340
     
  14. Crashton

    Crashton Club Coordinator

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    That points to the camshaft position sensor. Not sure how you isolate if it is the sensor, the wiring or some other cause.
     
  15. bcgreen

    bcgreen Member

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    This morning it was off as well as the DSC, for 20 min. then came on, along with the DSC. Code scan didn't indicate any issue with the DSC. I was hoping there would an indication as to what wheel is the issue.
     
  16. MCS02

    MCS02 Moderator
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    The only way is to check all the wiring. Make sure the plug is clean and plugged in good. Also make sure none of the wires look like they have been damaged. Parts store readers don’t read the BMW/MINI DSC codes.
     
  17. MCS02

    MCS02 Moderator
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  18. bcgreen

    bcgreen Member

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    Looked at the plug and it looks good from the outside and is very secure/stable. Locked in, not loose in any way.
     

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