190E (W201) 1982-1993: 190E 2.3, 190E 2.6, 190E 2.3-16, 190E 2.5-16, 190 D 2.2, 190 D 2.5, 190 D 2.5 TURBO, 190E 2.5-16 Evolution I, 190E 2.5-16 Evolution II

electromagnetic fan question

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Old Oct 27, 2009 | 12:01 AM
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1992 190e 2.3
electromagnetic fan question

Hi,

I was wondering if anyone can tell me if this is correct for a 1992 190e 2.3 8v.
My auxiliary fan is triggered at 100C instead of the electromagnetic fan. Once the auxiliary fan comes on it cools the engine so that the electromagnetic fan never gets triggered. Looking at the schematic it looks like it should be the other way around but the wiring and temperature switches seem to be original.

I would really like to hear from someone else with a 1992 model since it looks like the wiring is different from year to year.

Thanks,
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Old Nov 15, 2009 | 09:57 PM
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92 190E 2.3
Actually the electric fan comes on first and the clutch only kicks in as a last resort. I was looking for the written referrence to this, but I couldn't find it. I have a 92 2.3 and mine operates the same way.

Keeping in mind that having the clutch driven fan running adds burden to the motor and reduces power and therefore makes the engine work harder to cool itself. The increased burden from running an eletric fan is minimal in comparison.

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Old Nov 20, 2009 | 12:12 AM
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2000 MR-S daily driver, 1997 SL600 weekend fun, 1999 ML430 tow vehicle
my 88's fan clutch kicked on at 87*c and my aux never kicked on, but I would imagine it would come on at about 100*c

never let it get hotter than 100*c
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