1992-1995 Mazda 929 Rear Door Glass: Solar vs. Standard and Replacement Info
This guide covers compatibility, part numbers, and replacement tips for the rear door glass on the 1992-1995 Mazda 929, including the critical difference between standard and solar-reflective glass.
- The most critical step is verifying if your car has standard or solar reflective glass before buying a replacement to ensure a visual match.
- This rear door glass fits all 1992, 1993, 1994, and 1995 Mazda 929 sedans.
- There is a major safety recall (NHTSA 15V674000) for an overheating ignition switch on 1993-1995 models that all owners should check.
- If the window won't move but the glass is intact, the problem is the regulator or motor, not the glass itself.
Key Compatibility Information: 1992-1995 Mazda 929
The rear door glass for the Mazda 929 is consistent across all model years of the 'HD' generation, which spans from 1992 to 1995. Any rear door glass from a 1992, 1993, 1994, or 1995 Mazda 929 sedan should physically fit your vehicle. However, there is one crucial variation you must verify before purchasing.
Warning: Mazda offered two types of rear door glass for the 929: standard and solar reflective. The solar reflective glass has a specific tint and heat-rejection property. Mixing and matching will result in windows with a different appearance. Always check which type your vehicle has before buying a replacement.
How to Identify Your Glass Type
The easiest way to determine if you have standard or solar reflective glass is to compare the windows on your car. If the broken glass is still partially in place, look for any tint differences compared to the other windows. If the glass is completely gone, compare your remaining rear door window to the front door windows. If you are buying a used part, hold it up next to your car's existing glass to ensure the color and reflectivity match.
Symptoms of Failure
Failure of a door glass is almost always due to physical damage. Symptoms are typically obvious and include:
- Cracks: Ranging from small stone chips to large spiderweb cracks across the glass.
- Shattered Glass: The result of a significant impact, where the tempered glass has broken into many small pieces.
- Deep Scratches: Scratches that catch a fingernail can impair visibility and weaken the glass.
Pro Tip: If your rear window will not roll up or down but the glass is intact, the problem is not the glass itself. The issue is likely a failed window regulator (the mechanism that lifts the glass) or a bad window motor. Forum users have reported these components failing on the 929.
Buying a Used Rear Door Glass: What to Check
For a vehicle of this age, a used OEM glass is the most practical and cost-effective option. New OEM glass can be expensive and hard to find. When inspecting a used part, check the following:
- Verify the Tint: This is the most important step. Compare the used glass directly with the glass on the other side of your car to ensure it's a match (solar or non-solar).
- Inspect for Scratches: Hold the glass up to the light. Minor surface scuffs are acceptable, but avoid any deep scratches you can feel with your fingernail.
- Check for Chips and Edge Damage: Carefully run your finger along all edges of the glass. Avoid any pieces with chips or cracks, as these can spread over time.
- Look for Delamination: Though less common on tempered side glass, check the edges for any signs of the glass separating or looking milky.
- Confirm Mounting Points: Ensure the areas where the glass bolts to the window regulator are intact and free of damage.
Choosing a used OEM part over a cheap aftermarket one is often safer. Some aftermarket glass may not meet the same safety standards and might not shatter into small, dull pieces as intended.
Known Issues, TSBs, and Recalls
There are no recalls or Technical Service Bulletins (TSBs) specifically for the rear door glass on the 1992-1995 Mazda 929. However, there is a significant safety recall for this vehicle that all owners should be aware of.
Safety Recall: Ignition Switch Overheating
NHTSA Campaign ID: 15V674000 (Mazda Recall 8715J)
This recall affects 1993-1995 Mazda 929 models, among others. Excessive grease in the ignition switch can carbonize over time, creating a conductive path that can cause the switch to overheat, produce smoke, and potentially lead to a fire. The remedy is a free replacement of the ignition switch by a Mazda dealer. Owners can contact a Mazda dealership with their Vehicle Identification Number (VIN) to see if their car is affected and if the repair has been performed.
Replacement Overview & Difficulty
Replacing the rear door glass is a manageable DIY project for someone with basic mechanical skills. The process involves removing the interior door panel, peeling back the weather barrier, unbolting the glass from the window regulator, and maneuvering it out of the door frame. Some guides indicate that a vertical divider bar between the main glass and the small quarter glass may also need to be removed.
- Difficulty: 3 out of 5
- Estimated Time: 1.5 - 2.5 hours
- Tools Required: Basic hand tools (socket set, screwdrivers), and a door panel removal tool is recommended to avoid breaking plastic clips.
Cost Comparison
Prices for a replacement rear door glass can vary significantly based on the source.
| Part Type | Estimated Cost |
|---|---|
| New OEM | $410 - $590 |
| New Aftermarket | $75 - $200 |
| Used OEM | $50 - $125 |
| Shop Labor | $125 - $250 |
Technical Specifications & Part Numbers
These are the known OEM part numbers. Always confirm the correct part for your specific vehicle's side (left/driver or right/passenger) and glass type.
- H401-72-510: Right Rear Door Glass (Passenger Side), with Solar Reflective tint.
- HG30-72-510A: Right Rear Door Glass (Passenger Side), without solar reflector.
- HG30-73-510A: Left Rear Door Glass (Driver Side), without solar reflector.
Frequently Asked Questions (FAQ)
Is the driver's side rear glass the same as the passenger's side?
No, they are not interchangeable. Door glass is specific to the left (driver) and right (passenger) sides of the vehicle.
My rear window is stuck. Do I need to replace the glass?
No. If the glass is not broken, the problem is almost certainly the window motor or the window regulator assembly that moves the glass up and down. You will need to remove the door panel to diagnose the issue.
Can I use glass from a different Mazda model?
No. The door glass is shaped specifically for the 1992-1995 Mazda 929 sedan. Glass from other models, like the 626 or Millenia, will not fit.
Is it illegal to drive with a broken or missing rear window?
While not typically a moving violation, driving with a missing window can be considered an unsafe vehicle condition by law enforcement. It also exposes your vehicle to theft and the elements. It is highly recommended to cover the opening securely with plastic sheeting and tape as a temporary measure and replace the glass as soon as possible.
Technical Specifications
OEM Part Numbers: H401-72-510 HG30-72-510A HG30-73-510A
Tempered Safety Glass
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.
- Mazda 929:
- Key Compatibility Information: 1992-1995 Mazda 929
- How to Identify Your Glass Type
- Symptoms of Failure
- Buying a Used Rear Door Glass: What to Check
- Known Issues, TSBs, and Recalls
- Safety Recall: Ignition Switch Overheating
- Replacement Overview & Difficulty
- Cost Comparison
- Technical Specifications & Part Numbers
- Frequently Asked Questions (FAQ)
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