2007-2012 Mazda CX-7 Rear Door Glass: Privacy Tint, Part Numbers, and Replacement Guide
This is your definitive guide to the rear driver's side privacy glass for the 2007-2012 Mazda CX-7, covering inspection tips for used parts and common related issues.
- This part is for the rear driver's side and must be the 'privacy tint' version to match factory trim; the OEM part number is EG22-73-510B.
- When buying used, inspect for deep scratches and check that the plastic mounting points bonded to the glass are not cracked or damaged.
- Failure of the window motor or regulator is a very common issue on the 2007-2012 CX-7 and should be inspected during glass replacement.
- Replacement is a feasible DIY job requiring removal of the interior door panel, with a difficulty of 3 out of 5.
Symptoms of Failure
Unlike mechanical parts, the failure of side window glass is usually obvious. However, there are a few conditions to be aware of beyond simple breakage.
- Shattered or Broken Glass: This is the most common failure, typically caused by an impact from road debris or an accident. Tempered glass will break into hundreds of small, relatively dull pieces.
- Deep Scratches: Scratches that are deep enough to catch a fingernail can compromise the integrity of the glass and obstruct the driver's view.
- Rattling Noises: If the glass rattles when the door is closed or while driving, it may indicate that the bolts securing the glass to the window regulator have come loose. This should be addressed to prevent the glass from detaching or breaking.
Known Issues for 2007-2012 Mazda CX-7
While the side glass itself is not a common failure point, the components that operate it are. Many owners of 2007-2012 CX-7 models report issues with the power window system.
- Window Regulator and Motor Failure: It is common for the window regulator (the mechanism that lifts and lowers the glass) or the window motor to fail. Symptoms include a grinding noise when operating the window, the window moving slowly, getting stuck, or dropping into the door. Often, the plastic gears inside the motor strip out. When replacing broken glass, it's a good time to inspect the regulator for any signs of frayed cables or damage.
- Window Switch Issues: The master window switch on the driver's door can also fail, preventing one or more windows from operating.
- Recalls: There are no recalls or technical service bulletins (TSBs) specifically for the side window glass on the 2007-2012 Mazda CX-7. However, numerous other recalls exist for this vehicle, including for suspension ball joints and Takata airbag inflators. It is crucial to verify that all safety recalls have been completed on the vehicle.
Pro Tip: If your window shatters, you will find tiny glass pebbles inside the door cavity for years. When you have the door panel off, use a powerful shop vacuum with a narrow crevice tool to clean out as much of the old glass from the bottom of the door as possible. This prevents rattling and potential interference with the new glass and regulator.
Buying a Used 2007-2012 CX-7 Side Window Glass
Purchasing a used OEM side window is an excellent way to save money while ensuring a perfect fit and tint match. Here’s what to look for.
Verify the Correct Part
Compatibility is critical. You must ensure the glass is for the correct location and has the right tint.
- Location: This guide is for the Rear Driver's Side Door Glass. Glass for the passenger side or front doors will not fit.
- Tint: This is the privacy tinted version. Base models may have clear glass, and you should not mix and match if you want the appearance to be correct. Factory privacy glass has the tint embedded within the glass itself, whereas aftermarket tint is a film applied to the inside surface.
- Part Number: The verified OEM part number for the rear driver's side privacy glass is EG22-73-510B. An earlier number may be EG22-73-510A.
Physical Inspection Checklist
Before buying, perform a careful inspection of the used glass:
- Check for OEM Markings: Look for a small stamp in one of the corners with the Mazda logo or the name of an OEM glass manufacturer (like Pilkington, PPG, etc.). This confirms it's not a lower-quality aftermarket part.
- Inspect for Scratches: Run your fingernail across the surface. Minor surface scuffs are acceptable, but reject any glass with deep scratches you can feel.
- Examine the Edges: Carefully check the perimeter for any chips or small cracks (sometimes called 'nicks' or 'fleabites'). Damage to the edges can compromise the strength of the entire pane.
- Check Mounting Points: The glass attaches to the window regulator with clamps or bolts. Ensure these areas and any bonded plastic mounting hardware are intact and free of cracks or stress marks.
Replacement Overview
Replacing the rear door glass is a manageable DIY project for someone with basic mechanical skills. The process involves removing the interior door panel to access the window mechanism.
- Difficulty: 3 out of 5
- Estimated Time: 1-1.5 hours
- Tools Required: Phillips screwdriver, small flathead screwdriver, 10mm socket, panel removal tools.
Abridged Steps:
- Disconnect the negative battery terminal.
- Remove the interior door panel by removing screws behind the door handle and armrest, then using a panel tool to release the clips around the perimeter.
- Disconnect the window switch electrical connector.
- Carefully peel back the plastic weather barrier to gain access to the inside of the door.
- If replacing broken glass, vacuum all glass fragments from the door.
- Remove the bolts that secure the glass to the window regulator.
- Carefully maneuver the old glass out of the door frame and insert the new glass.
- Secure the new glass to the regulator, but do not fully tighten the bolts yet.
- Temporarily reconnect the window switch and battery to test the window's movement up and down, ensuring it is aligned correctly in the channels.
- Once aligned, tighten the mounting bolts.
- Re-apply the weather barrier and reinstall the door panel.
Cost Comparison
Prices can vary based on location and supplier, but this provides a general estimate.
| Part Type | Estimated Cost |
|---|---|
| New OEM | $95 - $150 |
| New Aftermarket | $50 - $90 |
| Used OEM | $45 - $85 |
| Shop Labor | $100 - $200 |
Frequently Asked Questions (FAQ)
Is the rear door glass the same for the driver's and passenger's side?
No, they are not interchangeable. The glass is shaped specifically for the left (driver) or right (passenger) side of the vehicle.
What is the difference between factory privacy glass and aftermarket tint?
Factory privacy glass has a dark pigment mixed into the glass during manufacturing. It is permanent and durable. Aftermarket tint is a thin film applied to the interior surface of the glass, which can bubble, scratch, or peel over time.
If my window is stuck, is it the glass or the motor?
If the glass is intact but won't move, the problem is almost certainly not the glass itself. The issue is likely with the window motor, regulator, fuse, or switch. A grinding or clicking noise often points to a failed motor or regulator.
Do I need any special calibration after installing new side glass?
No, side window glass does not require any electronic calibration. However, some models may require a window reset procedure (running the window fully up and down) if the battery was disconnected, to restore the 'auto-up/down' function.
Technical Specifications
OEM Part Numbers: EG22-73-510B EG22-73-510A
Type: Tempered Safety Glass Tint: Factory Privacy Tint Location: Rear Door, Left Hand (Driver's Side)
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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