Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Acura TL V6-3.2LFACTORY OEM SERVICE PROCEDURE
Rear Door Window Glass: Service and Repair
Rear Door Glass and Regulator Replacement
NOTE:
- Put on gloves to protect your hands.
- Be careful of sharp edges.
1. Remove these items:
- Door panel
- Plastic cover, as necessary

2. Carefully move the glass (A) until you can see the bolts, through the holes in the door frame, then remove them. Remove the glass from the regulator (B), and carefully lower the glass. Take care not to drop the glass inside the door.

3. Pull the glass run channel (A) away as needed. Pull the door weatherstrip (B) away as needed, then remove the screw (C) with a T15 TORX bit. Remove the bolts (D, E) securing the center channel (F), then remove the collar (G).

4. Pull the upper portion of the center channel (A) forward to remove it from the door quarter glass seal (B), then pull up and remove the center channel through the window slot. Take care not to damage the outer weatherstrip (C).

5. Remove the quarter glass (A). Take care not to damage the outer weatherstrip (B).

6. Carefully remove the glass (A) through the window slot. Take care not to drop the glass inside the door.

7. Disconnect the connector (A) from the regulator (B).
8. Remove the bolts (C), and loosen the bolts (D), then remove the regulator through the hole in the door.

9. Apply multipurpose grease to all the sliding surfaces of the regulator (A) where shown.
10. Install the glass and regulator in the reverse order of removal, and note these items:
- Special corrosion-resistant bolts are used in this area. The use of any other type of hardware may result in accelerated corrosion.
- Roll the glass up and down to see if it moves freely without binding.
- Make sure that there is no clearance between the glass and glass run channel when the glass is closed.
- Adjust the position of the glass as necessary.
- When reinstalling the door panel, make sure the plastic cover is installed properly and sealed around its outside perimeter to seal out water.
- Check for water leaks.
- Test-drive and check for wind noise and rattles.
NOTE:
- Put on gloves to protect your hands.
- Be careful of sharp edges.
1. Remove these items:
- Door panel
- Plastic cover, as necessary
2. Carefully move the glass (A) until you can see the bolts, through the holes in the door frame, then remove them. Remove the glass from the regulator (B), and carefully lower the glass. Take care not to drop the glass inside the door.
3. Pull the glass run channel (A) away as needed. Pull the door weatherstrip (B) away as needed, then remove the screw (C) with a T15 TORX bit. Remove the bolts (D, E) securing the center channel (F), then remove the collar (G).
4. Pull the upper portion of the center channel (A) forward to remove it from the door quarter glass seal (B), then pull up and remove the center channel through the window slot. Take care not to damage the outer weatherstrip (C).
5. Remove the quarter glass (A). Take care not to damage the outer weatherstrip (B).
6. Carefully remove the glass (A) through the window slot. Take care not to drop the glass inside the door.
7. Disconnect the connector (A) from the regulator (B).
8. Remove the bolts (C), and loosen the bolts (D), then remove the regulator through the hole in the door.
9. Apply multipurpose grease to all the sliding surfaces of the regulator (A) where shown.
10. Install the glass and regulator in the reverse order of removal, and note these items:
- Special corrosion-resistant bolts are used in this area. The use of any other type of hardware may result in accelerated corrosion.
- Roll the glass up and down to see if it moves freely without binding.
- Make sure that there is no clearance between the glass and glass run channel when the glass is closed.
- Adjust the position of the glass as necessary.
- When reinstalling the door panel, make sure the plastic cover is installed properly and sealed around its outside perimeter to seal out water.
- Check for water leaks.
- Test-drive and check for wind noise and rattles.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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