mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Diagram Information and Instructions|Page 7343 > < Diagram Information and Instructions|Page 7341
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Auxiliary Fan Pre-Resistors (R15, R15/1)

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The ACC pushbutton control unit (N22) receives an input from the sensor (B12) to provide low pressure - high pressure A/C compressor cut-out,
and to control the 3 stages of the auxiliary fans.

Auxiliary Fan Switch-points:

Chart - Auxiliary Fan Switch-points

Coolant Temperature Sensor (B10/8)

In the 1st stage, the auxiliary fans:
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Do not engage at ambient temperatures < +5°C,

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Engage at ambient temperatures > + 10 °C.

Diagram Information and Instructions|Page 7343 > < Diagram Information and Instructions|Page 7341