Heater Air Conditioner Change Over Switch on Dash for Mercedes 220, 220D, 230 and 250, 115 830 01 85
New OE Mercedes Air Conditioning to Heater Change Over Control Switch.
This switch is mounted behind the dash and operated by moving a lever which is located under the fan switch knob, from left to right, to change from heater mode to air conditioning mode.
This is a combination switch that:
Electrically - re-directs the electricity from the heater blower motor to the air conditioning motor.
Mechanically - opens or closes the flap over the air conditioning blower and seals the heater air off, or visa versa, by operating a cable.
The Mercedes part number on this is 115 830 01 85
I am not certain, but the electrical switch portion may be the same as the later models, which is operated by a vacuum element to the right of the gas pedal. Email me with a description of yours and I can confirm or deny this.
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