Climate Control Exhaust Gas Sensor: Testing and Inspection

Air quality sensor, checking

Removal

Removing the windshield wiper and cowl

Remove:
- the windshield wipers. See Wiper arm / blade, windshield, replacing
- the cowl over the windshield wiper recess. See Cowl and gutter, replacing Cowl and Gutter, Replacing

Check

Checking the air quality sensor




- Start the car engine with the ECC automatic button in the ON position.




- Spray quick rust penetrator 116 1422 QUICK RUST SOLVENT 200ml:SPRAY 116 1422 Quick Rust Solvent 200ml:Spray into the opening for the air quality sensor.

Note! Only spray a little.

If the air quality sensor and the other electronics are fault free, the damper for the air intake should close very soon.




If the air quality sensor is fault free, the damper for the air intake will gradually open after approximately 15 seconds.

Installation

Installing the windshield wiper and cowl

Install:
- the cowl over the windshield wiper recess. See Cowl and gutter, replacing Cowl and Gutter, Replacing
- the windshield wipers. See Wiper arm / blade, windshield, replacing

Note! Cover the air intake to the passenger compartment when the engine compartment or the car is being treated with wax or preserving agent.