Windows gone crazy - how to fix it? - Mercedes-Benz Forum
 
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post #1 of 6 (permalink) Old 10-04-2017, 09:14 AM Thread Starter
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Windows gone crazy - how to fix it?

Experts, my 2007 S600 has got it's window controls confused. Driver window stopped working (could be the infamous thermal fuse). The front passenger window works fine (the only one). Buttons for right rear do not work. The left rear button operates BOTH rear windows sequentially (including the power shades).

Additionally the steering wheel sticky round switches stopped working.

Any thoughts on what could be the problem and/or how to reset it?

thanks
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post #2 of 6 (permalink) Old 10-05-2017, 05:54 AM
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You could try pulling fuses and resetting them; but this reads more like something getting spilled on switches. The other possibility, at least regarding windows, is a bad door control module.

Warren

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Formerly:
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post #3 of 6 (permalink) Old 12-09-2017, 04:35 PM Thread Starter
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Update: the windows craziness and steering wheel controls got reset and started working fine after I disconnected aux battery in the trunk for a night.

The driver window still does not go down. I bought a Mercedes specific after-market code reader and it gives me error "Thermal fuse activated > 85 degrees C". Proper fix is to update the door software so it's more tolerant and does not trip the thermal fuse too easily (there is a Mercedes bulletin on that)

But: has anyone figured out a way to *deactivate* the software thermal fuse instead of changing the software? With STAR or any other system? Thanks
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post #4 of 6 (permalink) Old 12-09-2017, 04:37 PM Thread Starter
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BTW, all the physical fuses are fine, thanks for that suggestion - it's a s/w fuse which is a problem here.
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post #5 of 6 (permalink) Old 05-23-2019, 08:55 AM Thread Starter
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Ok, finally I have upgraded the driver door software myself and all the windows problems are gone (including non-working driver window which is now fixed). That is after visits to the dealer and independent mechanics who all said that I'm full of sh** asking them to upgrade the software in the door because it's not the cause of the problems and I don't have the stored "thermal switch" error any more (so it's not the well known s/w bug in the door). Instead for only $300 they offered to disassemble my doors, diagnose my problems and tell me what to do next.
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post #6 of 6 (permalink) Old 05-23-2019, 11:05 AM
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Glad you got it sorted George!

One thing 30 years of wrenching my own Mercedes has taught me ... if the procedure says X, do X. Just about anything else will lead to having to do X anyway.
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