mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Ventilation Switch|Testing and Inspection|Page 5434 > < Vacuum Reservoir HVAC|Locations|Page 5430
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Ventilation Switch: Testing and Inspection

TESTING OF SWITCH FOR FRESH AIR-RECIRCULATING AIR (STARTING 07/81)

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Connect ohmmeter to terminal 3 and 4.

Switch 26 

Nominal value

Push symbol (arrow, top) ON 

= 0 to 1 Ohm

Push without symbol 
(arrow. bottom) OFF 

= Infinite Ohms

Ventilation Switch|Testing and Inspection|Page 5434 > < Vacuum Reservoir HVAC|Locations|Page 5430