Quote:
M102 powered models:
These have an engine driven fan with an electromagnetically coupled clutch. Until the coolant temperature reaches 105 degrees C the fan is not coupled and is effectively stationary (will turn very slowly due to air moving through radiator due to forward movement of the car). Should the coolant temperature reach 105 degrees (very likely in traffic due to little air movement through radiator) the temperature switch will activate the electromagnetic clutch and the fan will rotate at a speed proportional to engine speed (without any "slip" as would occur with a viscous clutch coupled fan). When the coolant temperature drops back to around 95 degrees the clutch will release. In cars with air-conditioning, the electromagnetic clutch will also engage on demand of the air-conditioner's pressure switch at the receiver-dryer. The air-conditioner pressure switch will also activate the auxilliary fan in front of the condenser at low speed (low speed results from the fan being supplied via the series ballast resistor). Should the coolant temperature rise to 110 degrees the temperature switch will activate the auxilliary fan at high speed.
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I have got air conditioner, but rather than air conditioner sensor, I'd want to connect to an engine temperature sensor and jumper it to activate the fan located between the motor and the radiator.
@Spetz: On your car, that's the right connector. Have a look at the last figure on
http://www.w124performance.com/service/w124CD1/Program/Engine/602_603/20-330.pdf