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Home >> Mercedes Benz >> 1978 >> 450SL >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Exhaust Emissions System - EVAP >> Testing >> Vent Valve Solenoid >> 230 Models

230 Models

  1. Remove plug on solenoid of float chamber vent valve and place one hand on solenoid. Reconnect plug. An audible "click" should be detected.
  2. If not, connect test lamp to plug and turn on ignition. Test lamp should light when ignition is turned on. If not, check appropriate fuse. If still no light, replace solenoid.
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