Purge control valve - Description of components - GF47.30-P-2020V

MODEL 203 with ENGINE 272.920 up to Model Year 8

MODEL 211 with ENGINE 272.922

MODEL 203 with ENGINE 272.940 up to Model Year 8

MODEL 203 with ENGINE 272.941 up to Model Year 8

MODEL 171 with ENGINE 272.942 up to Model Year 8

MODEL 211, 219 with ENGINE 272.943

MODEL 211 with ENGINE 272.944

MODEL 251 with ENGINE 272.945 up to Model Year 8

MODEL 221 with ENGINE 272.946 up to Model Year 8

MODEL 203 with ENGINE 272.960 up to Model Year 8

MODEL 171 with ENGINE 272.963 up to Model Year 8

MODEL 211, 219 with ENGINE 272.964

MODEL 221 with ENGINE 272.965 up to Model Year 8

MODEL 230 with ENGINE 272.966 up to Model Year 8

MODEL 164, 251 with ENGINE 272.967 up to Model Year 8

MODEL 203 with ENGINE 272.970 up to Model Year 8

MODEL 211 with ENGINE 272.972

MODEL 221 with ENGINE 272.975 up to Model Year 8

MODEL 211, 219 with ENGINE 272.985

MODEL 221 with ENGINE 273.922 up to Model Year 8

MODEL 164 with ENGINE 273.923 up to Model Year 8

MODEL 221 with ENGINE 273.924 up to Model Year 8

MODEL 211, 219 with ENGINE 273.960

MODEL 216, 221 with ENGINE 273.961 up to Model Year 8

MODEL 211 with ENGINE 273.962

MODEL 164, 251 with ENGINE 273.963 up to Model Year 8

MODEL 230 with ENGINE 273.965 up to Model Year 8

MODEL 209 with ENGINE 273.967

MODEL 221 with ENGINE 273.968 up to Model Year 8

MODEL 209 with ENGINE 272.940

MODEL 209 with ENGINE 272.960

Shown on model 211

Fig 1: Identifying Purge Control Valve (Y58/1)

Courtesy of MERCEDES-BENZ USA

Location

The purge control valve is located in the engine compartment.

Task

Opening or closing the connection line between the activated charcoal canister and the intake manifold (purge line).

Design

Electric switchover valve with two line terminals and one 2-pin plug connection.

Fig 2: Identifying Connection Of Purge Control Valve (Y58/1)

Courtesy of MERCEDES-BENZ USA

Function

The purge control valve is actuated on the ground side by the motor electronics control unit, depending on operating condition of engine and on the vehicle load of the activated charcoal canister, at the ground end with a pulse width modulation signal (duty cycle 0 to 100 %).

The voltage supply is performed via circuit 87.

If purging is released, the purge control valve pulses audibly and perceptibly.

At the same time the passage for the purge line from the activated charcoal canister to the intake manifold (a b) is opened and closed.

The purge control valve is opened and closed for the leak test of the regeneration system. It also detects if the purge control valve jams in open condition.

Fig 3: Identifying Fluid Reservoir, Purge Control Valve And Intake Manifold

Courtesy of MERCEDES-BENZ USA

To suppress pulse noise, a fluid reservoir is located upstream of the purge switchover valve.