Mercedes-Benz turbocharger solenoid valve replacement
Auto repair

Mercedes-Benz turbocharger solenoid valve replacement

22.07.2022 /

On turbocharged or supercharged vehicles, a pulse width modulation (PWM) signal is sent from the ECU to activate the solenoid solenoid. On Mercedes-Benz vehicles equipped with a turbocharger or supercharger, check to see if the check engine light comes on if the wastegate solenoid valve is faulty or there is a problem with the wiring harness.

In this guide, you will learn how to replace the Mercedes-Benz turbocharger/supercharger solenoid.

Symptoms

  • Check engine light
  • Loss of power
  • Limited Bost Exceeded or Reduced
  • Warning message on dashboard

Associated trouble codes P0243, P0244, P0250, P0245, P0246.

Common causes

The intake manifold boost pressure control solenoid is sometimes referred to as the boost bypass solenoid.

In addition to the turbocharger/supercharger wastegate solenoid, there may also be a problem:

  • damaged wires,
  • short to ground
  • bad connector
  • rusty contacts
  • faulty computer.

What do you need

  • Mercedes Watergate Solenoid
    • Code: 0001531159, 0001531859
  • 5mm hexagon wrench

instructions

  1. Park your Mercedes-Benz on a level surface and let the engine cool down.

    Mercedes-Benz turbocharger solenoid valve replacement
  2. Set the parking brake, then pull the hood cover under the dash to open the hood.

    Mercedes-Benz turbocharger solenoid valve replacement
  3. Remove the air intake tube. Turn the plastic screw to unlock the plastic screw. Then disconnect the inlet pipe.

    Mercedes-Benz turbocharger solenoid valve replacement
  4. Disconnect the electrical connector from the exhaust flap solenoid. First you need to release a small latch by pulling on the connector. Verify that power is being supplied to the solenoid. Use a digital multimeter to check if the solenoid is receiving 12 volts. Don't forget to turn on the ignition when checking the voltage.
  5. Remove all bolts securing the solenoid valve to the cylinder block. In this case, we have three bolts that need to be unscrewed with a 5 mm hex wrench.
  6. Remove the solenoid solenoid from the engine.
  7. Install a new load/unload tube control solenoid valve. Make sure the O-ring or gasket is installed correctly.
  8. Hand tighten all bolts, then tighten to 14 ft-lbs.

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