Differential Pressure Sensor (G505)

Differential Pressure Sensor (G505)

The differential pressure sensor determines the particulate filter load level.

Removing

- The differential pressure sensor - 3 - installed on the front side.

- Spray the hoses from the differential pressure sensor with thinner before removing.






- Pull the hoses straight off the connections to remove. The connections break off of the differential pressure sensor very easily.

- Disconnect the connector - 3 - from the differential pressure sensor.






- Remove both bolts and the differential pressure sensor.

Installing

- Note the following when installing:

• Clean out the hoses on the differential pressure sensor with compressed air blow in the direction of the particulate filter in case they are blocked or iced over with condensation.

• Check for secure fit and leaks.

• If the particulate filter pressure lines were removed, tighten them to the tightening specification.

• For the correct tightening specifications, refer to => [ Oxygen Sensors and Exhaust Temperature Control Overview ] Oxygen Sensors and Exhaust Temperature Control Overview.

An adaptation must be performed after replacing the differential pressure sensor and/or particulate filter. The procedures are also described in Guided Fault Finding.