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#1
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Hard top defroster....help?
I just picked up a hard top for my 72 350SL.....it has the cable plug that fits into the side plug.....but the rear window doesn't have those tell-tale wires in the glass that a normal defroster has..... When I hit the defrost button on the dash...nothing really happens.
1. Do I actually have a defroster....with no wires in the glass? 2. How come it don't work? 3. Should I just continue to use my manual defroster....(hand and a rag??)_ any help would be great. thanks |
#2
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SL Defroster
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The only alternative, I guess, is to get one of the universal grids that JC Whitney sells, though it won't be as transparent as the original. Please let me know if you find out what the problem is. Good luck, Bill |
#3
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Look really close at the glass. There are small wires embedded inside the glass not on the surface like most. Hard to see. It "dont work" because it is not getting electricity. It could be a number of things like fuses, wires, relays, connectors and everything in between.
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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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It's easy to check: turn it on and put the leads of a multi-tester into the defroster plug socket. If you've got juice, there's a short in the grid. You can then test the grid's continuity by putting one multi-tester lead on each of the plug's prongs and passing current through it. No current, no continuity.
Bill
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Bill 1981 380sl |
#5
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Thanks!!
It looks like I got juice.....It just takes the grids 15-20 minutes to warm up the glass.... is this normal for the year....1972? |
#6
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How cold is it? The colder it is the longer it will take to melt the frost.
__________________
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 |
#7
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not that cold....I'm in Ca. so we dont really even get frost...just heavy fog...... it's more of a condensation problem....
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#8
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Quote:
I never have the hard top on my SL, so I don't know how long that one takes. |
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