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Home >> Mercedes Benz >> 1999 >> SL 500 (129.068) V8-5.0L (113.961) >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Evaporative Emissions System >> Refueling Vapor Recovery System >> Refueling Control Valve >> Description and Operation >> Pressure Relief Valve, Location/Task/Design/Function >> Pressure Relief Valve, Function

Pressure Relief Valve, Function




Pressure Relief Valve, Function

The diaphragm lifts off at a pressure of approx. 60 to 90 mbar. The fuel overflow line to atmosphere opens. Air is admitted to the diaphragm chamber.
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