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I have a 93 M/Benz SL500 having problem with the convertible top. The switch for activating the convertible top lights constantly and when driving, a terrible warning noise occor. Everything seem to work ok, but when operating the convertible top, the windows does not close automatic. I've tried to operate the convertible top manually, but without succes. How do I solve the problem?

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  • Arne Kamp Nov 25, 2011

    BOB
    Any 'expertise' I have came the hard way...something broke and I did what you're doing, look for answers. Please do post back on the forum with an update status on what you tried, what was the result, etc. There are many others who know a hell of a lot more than I do about these things, and the broader you distribute your issues, the more likely someone will help come up with a concrete answer for you.

    I doubt that the hydraulic cylinders are the fault here, you'd have leaks of fluid that would be easy to spot. If this were my car, I'd...

    o Check the hydraulic fluid at the pump; located under the spare at the absolute bottom of the trunk. If the fluid is not up to the full mark, top it off with either MB branded fluid or Febi-Bistein p/n 02615

    o If fluid is ok, the solid light on the switch and warning buzzer usually indicate an electrical fault in the system or the system needs to be re-synchronized. To re-synch, start the car, close the doors; push and hold both window switches down simultaneously for a count of 5 after the window stops. Then release the switches, and repeat the prior step moving the windows in the opposite direction back to where you started.

    Try to move the top using the control button after you've done the synch.

    If you still get the same flashing light on the control button and alarm noise, it can also indicate that the top controller (under the parcel shelf behind the passenger seat) is throwing diagnostic codes. Therefor, the next thing I'd do is clear the controller codes.

    So, to summarize to this point, check fluid, re-synch the windows, try to move the top using the control button, clear codes, try to move the top using the control button. Always have the doors closed and engine running when working the top; a weak battery will also make the system go into default mode (that's where it is now)

    Try this stuff and post how you make out back on the forum. There are more knowledgeable people around than me that can join this conversation.

  • Arne Kamp Nov 25, 2011

    BOB
    The pdf file attached has the information you'll need to diagnose your top issues. After clearing the original stored codes (see earlier email), if the top is still not operating as designed, re-read the newly stored codes. Using the enclosed chart, compare the code number(s) you get to the definitions provided. Good hunting-

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Look around your convertible top and its like you have problem with the black seal some thing there make your convertible top not close good . try look again and i hop you found the problem . look good .let me know .

Posted on Nov 16, 2011

  • sami
    sami Nov 16, 2011

    look around your convertible top hinge .and the switch .

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