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#1
12-05-2012, 01:48 PM
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W124 electric aux cooling fan operate without AC on?
On a 93 W124, would the electric fans operate if the AC was switched off? Mine operate when AC is on, and have the designed two stages of operation. The drawing from the shop manual shows relay K10 operated by the high head pressure AC switch, and K9 is operated by the climate control.
So if I am slowly driving in hot traffic with the convertible top down, annoying people with my selection of music, will I just have the viscous drive mechanical fan; or should I turn on the AC?
__________________
91 300 TE 235K 93 Cabriolet 155K sold 92 300 TE 200K boneyard 
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#2
12-05-2012, 02:14 PM
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Should come on at approx 107C. high speed
__________________
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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Linear Mode
