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#1
08-21-2012, 08:28 PM
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R170 SLK supercharger resistance/voltage/current?
Ok, I want to do a bench test for the supercharger clutch. First of all, I measured the resistance across the two pins and got 3.6 Ohm. Is it me or that is way too low?
Second, I applied 12V (connected to my battery) and no click. Shorted?
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Your TACH may have a loose connection...I was wondering why your mechanic would be dead one minute then flopping around the next... PanzerSD i am inspired. i will replace my windsheild... with an intercooler. swedishK 
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#2
08-22-2012, 08:29 AM
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With an ammeter connected the clutch should draw between 2.5-4.5 A
Are you getting a code for the clutch?
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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#3
08-22-2012, 04:02 PM
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3.5 ohms circuit at 14V is 4 amps - which sounds correct as the doc..
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2012 BMW X5 (Beef + Granite suspension model) 1995 E300D - The original humming machine (consumed by Flood 2017) 2000 E320 - The evolution (consumed by flood 2017)
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