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#1
07-10-2003, 12:37 PM
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Power Windows...Negative Motor Switch? One-touch conversion
There are two modifications that I'd like to make to my '85 380SL. The first is a "One-Touch" window Up or Down switching and the other being a remote door lock/unlock feature.
This question is for the Auto window feature. Has anyone done this? I found one module that facilitates this need however, it states " This unit will not work with some German cars that have negative window motor switches." Does the 107 use a "negative window motor switch"? If so, any ideas of alternative options? http://www.a1electric.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=AEOS&Product_Code=530T
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Rick '85 380 SL (sold) '85 Carrera Flatnose '71 280 SL Signal Red/Cognac 
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#2
07-10-2003, 07:50 PM
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Bergwerks, the same people who make the first-gear-start module, have a module that does this for 107s. Check out http://bergwerks.com/1_touch_win.jsp.
[No financial interest, etc.]
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Craig Bethune '97 SL500, 40th anniversary edition '04 Olds Bravada (SWMBO's) '06 Lexus ES330 '89 560SL (sold) SL--Anything else is just a Mercedes. (Kudos to whoever said it first)
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#3
07-11-2003, 10:41 AM
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Craig,
Thanks for the excellent link. Apparently the module I originally mentioned will not work with most Mercedes. I was told that on most domestic cars when the power window switch is hit that the current to the window motor is supplied. A permanent ground is in place in this type of circuit. With the Mercedes and some other Euro cars the switch completes the ground circuit for the motor.
__________________
Rick '85 380 SL (sold) '85 Carrera Flatnose '71 280 SL Signal Red/Cognac
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