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#1
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Simultaneous Window Closing and Motor Strain
While I don't know how many of our cars have this feature, at least on mine (91 and 92 300D) I can close all the windows and the sunroof simply by locking the driver door with the key. This is pretty convenient. However, I recently read some posts that indicated there is no current limitation on the window regulators. So if, for example, you push a switch to raise the window and hold the switch after the window is all the way up, you'll be putting a strain on the motor....which over time can't be good.
My question: does this also apply when using the close-'em-all-at-the-same-time feature? So that if, for example, the sunroof is closed and all the windows are open, am I putting a strain on the sunroof motor by closing the windows? If so, this would seem to be something of a design flaw. But perhaps all the motors are so massively over-designed that the current strain simply isn't an issue. Anyway, I like the feature. But I won't using it if I'm contributing to premature regulator motor death. I was hoping that someone out there is sufficiently familiar with the design to shed some light. Thanks.
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#2
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The sunroof has a limit-switch when it is closed. The windows are designed for it, there isn't enough time to cause the armatures to overheat. It will also open the windows (and sunroof if closed with this feature) with the key.
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Gone to the dark side - Jeff |
#3
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I'd be more concerned about strain on window regulator arm as a result of the regulator needing lube. On my SD this is indicated by slow closing.
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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do. |
#4
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I think I'm starting to live in a state of constant fear of failing window regulators! Those things (especially rears) are expensive!!
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#5
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They really aren't all that expensive, and they hardly ever fail unless you open/close all the windows 20 times a day. I have yet to have a motor or regulator fail on either of my cars....
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#6
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On my 92, the right rear failed. Cost of a new regulator from Fast Lane is $335. In my book, that's expensive. Thankfully, my tech was able to provide a used part for $50.
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#7
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There is more than one place to buy parts online you know.....competition is out there.
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#8
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I know. I usually buy my parts elsewhere...always looking for the best price.
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
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