Climate Control Exhaust Gas Sensor: Service and Repair

Air Quality Sensor

• The air quality sensor (G238) was discontinued from November 2007 for the American markets.

• The air quality sensor (G238) is installed at the right front on the intake air grille in the plenum chamber.

• The Sensor for air quality (G238) contains a highly sensitive electronic component which can be damaged if it comes in direct contact with solvents, fuels or chemicals.

• Do not install a sensor that has been kept, for example, in a tool box.

• Do not store removed sensors in areas where they can come into contact with solvents, fuels and certain chemical compositions (fluids or vapors).

Removing

- Remove plenum chamber cover.

- Remove the cover over the intake air grille.

- Disconnect the connector on the air quality sensor (G238).





- Release the air quality sensor (G238) - 1 - and rotate it to remove it from the bracket on the intake air grille.

Installing

- Install in reverse order of removal.