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#1
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Any Way to Rig Headlight Wipers on a 124--Turn On When Uni-Wiper is On
I know this sounds silly, but maybe I have a little extra time on my hands . I never find myself using the headlight wipers (requires both the headlights on and washer fluid activated), and, having just replaced the blades, I figured it would be neat if they operated in the rain every time the main wiper is turned on. Is there a way to make this happen? Sorry for the odd inquiry!!!
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1982 300D-T (sold) 1988 300E (sold) 1994 E320 Wagon (sold) 1995 E320 1998 E300D-T 1999 E3204M Wagon 2001 E320 2005 E320 CDI |
#2
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Hi, I am providing the wiring diagrams for HeadlightWiperWasher and main WiperWasher circuits. I think with proper rewiring you can get the effect you desire. I myself have yet to figure out which wire goes to which.
Maybe can someone with electrical skill help.
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1996 E320 since 1/16/08, 171K miles as of Feb 2011 --------------------------------------------------------- 1989 300CE - R.I.P. Dec 29 2007 Other MBs (sold): 1992 300E-24 - 1979 350SLC - 1984 230E - 1990 300CE |
#3
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Connect a wire from the main wiper motor (black yellow gray) and route it to terminal 4 of the headlamp washer relay (located in the fuse box). Also disconnect the wire that goes to that terminal 4. Otherwise your washer pumps will run when the wipers are on.
A few compromises with this mod. 1. Headlight wipers will only run on "LO". Not on fast or intermittent. 2. Headlamp washer pump will run whenever the wiper runs. Unless you move the connection from this headlight washer pump to the main washer pump. Move the (black red yellow wire on the headlight washer pump to the (violet yellow) wire that you disconnected from terminal 4 of the headlamp washer relay. Or you have the option of just disconnecting the headlamp washer pump altogether.
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I got too many cars!! Insurance eats me alive. Dave 78 Corvette Stingray - 3k 82 242 Turbo Volvo - Manual - 270k 86 300e 5 speed manual - 210k 87 420sel - 240k 89 560sl - 78k 91 420sel - 205k 91 560sel - 85k 94 GMC Suburban - 90k 97 Harley Davidson Heritage Softail - 25k 00 GMC Silverado 1 ton 30k |
#4
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As per the previous posts, it's seems like a doable project...
...the concern I have is that the headlight wipers only come on briefly when the washer is activated (when headlights are on). The motors may not be designed for sustained operation like the big mono-wiper...
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2009 ML350 (106K) - Family vehicle 2001 CLK430 Cabriolet (80K) - Wife's car 2005 BMW 645CI (138K) - My daily driver 2016 Mustang (32K) - Daughter's car |
#5
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Quote:
Agree! Be advised that the headlamp wiper motors are not designed for continous operation (only periodical use). I know of two owners who, for fun, did what you want to do and soon their headlamp wiper motors failed. To make mattters more interesting, they usually fail stucked in the up position making the headlamp wipers look awful.
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A. Rosich CL 500, 1998 S 500 L, 1998 E 320 T, 1995 [Sadly sold ] |
#6
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I've seen it done, and as previous posts hinted, the motors burned out after just a few days of heavy rain. They just aren't designed to handle the heat of constant use.
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08 W251 R350 97 W210 E320 91 W124 300E 86 W126 560SEL 85 W126 380SE Silver 85 W126 380SE Cranberry 79 W123 250 78 W123 280E 75 W114 280 |
#7
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Quote:
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Current Benzes 1989 300TE "Alice" 1990 300CE "Sam Spade" 1991 300CE "Beowulf" RIP (06.1991 - 10.10.2007) 1998 E320 "Orson" 2002 C320 Wagon "Molly Fox" Res non semper sunt quae esse videntur My Gallery Not in this weather! |
#8
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Blame the one providing the wiring diagrams, me!
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1996 E320 since 1/16/08, 171K miles as of Feb 2011 --------------------------------------------------------- 1989 300CE - R.I.P. Dec 29 2007 Other MBs (sold): 1992 300E-24 - 1979 350SLC - 1984 230E - 1990 300CE |
#9
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__________________
Current Benzes 1989 300TE "Alice" 1990 300CE "Sam Spade" 1991 300CE "Beowulf" RIP (06.1991 - 10.10.2007) 1998 E320 "Orson" 2002 C320 Wagon "Molly Fox" Res non semper sunt quae esse videntur My Gallery Not in this weather! |
#10
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Those were pretty cool!
Got any schematics for the stereo system for a 93 W124? I'm trying to integrate the factory harness with an aftermarket head unit...I'm trying not to splice any wires!
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2009 ML350 (106K) - Family vehicle 2001 CLK430 Cabriolet (80K) - Wife's car 2005 BMW 645CI (138K) - My daily driver 2016 Mustang (32K) - Daughter's car |
#11
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I think it's a great idea...
However, the wiper blades will make extremely short work of your headlight lenses, as they are not the same durable material, as the windshield. They also do not have the laminate coating that the rest of the glass on the car does... Just my .02 cents..
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[SIGPIC][/SIGPIC] |
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