Astra L4-1.8L (2009)
4. Install the I/P insulator panel.
Install the 2 retainers.
5. Install the recirculating air valve housing, outside.
1. Tighten the bolt.
2. Install the recirculating air valve housing grille.
Tighten the 4 bolts to 5 Nm (44 lb in).
6. Install the air inlet screen. Refer to Air Inlet Screen Replacement (See: Air Duct/Service and Repair/Air Inlet Screen Replacement).