Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Air Register: Service and Repair



Defroster Grille Replacement (with HUD)

Removal Procedure




1. Remove the defroster grille by carefully prying upward in order to release the retainers.
2. Disconnect the electrical connector from the sensor (1).
3. Twist the sensor counterclockwise to remove.

Installation Procedure




1. Align the lock tabs on the sensor (1) to the openings in the defroster grill (2).
2. Twist the sensor clockwise in order to secure the sensor to the defroster grill.
3. Connect the electrical connector to the sensor.
4. Align the tabs on the defroster grill to the openings in the IP carrier.
5. Install the defroster grille to the carrier by pressing down in order to secure.