SAAB WIS ONLINE

Cleaning the mass air flow sensor

Cleaning the mass air flow sensor



1. Turn the ignition switch to LOCK.

2. Remove the mass air flow sensor.

Mark the position of the sensor body.


3. Remove the sensor body. Use a Torx bit T20 with centre hole (security hole). Place the sensor body on a rag to gather up any spill while cleaning.

4. Spray the sensor body with electronics cleaner 30 09 461 from above and below. Allow the fluid to act for about 1 minute. Take care, do not touch the sensor components tools or other aids.


5. Carefully blow clean the sensor body internally and externally with compressed air. Keep a distance of at least 30 cm.


6. Repeat this treatment twice.

7. Lubricate the sensor body O-ring sparingly with petroleum jelly to facilitate fitting.


8. Fit the sensor body so that it is aligned with the mark. The sensor body is calibrated for its position and must therefore be fitted in its original position.


9. Fit the mass air flow sensor with the arrow pointing in the direction of flow of air (towards the turbocharger intake). Plug in the connector.

Tightening torque, mass air flow sensor: 3.5 Nm (2.5 lbf ft)