Acoustic EV Glazing and Head-Up Display Variants
Working on the Mercedes-Benz EQS requires paying close attention to the sheer volume of integrated tech baked directly into the glass layers. Because the all-electric powertrain eliminates combustion engine noise, Mercedes engineered the windshield with a specialized acoustic interlayer to eliminate high-frequency motor whine and wind buffet. When sourcing the correct replacement panel, the vehicle's optical configuration dictates the exact part. The glass differs drastically depending on whether your car features the standard projection unit or the massive Augmented Reality Head-Up Display (AR-HUD), which demands a dedicated wedge-shaped polyvinyl butyral interlayer to stop ghosting.
The platform separates into two primary body designations: the V297 sedan and the X296 SUV. Across both profiles, the factory original equipment catalogs identify the sedan glass under part number 297-670-96-01 (which supersedes earlier revisions including 297-670-05-01, 297-670-13-00, and 297-670-93-00) alongside 297-670-23-01, while the base driver-assistance EQS SUV panel carries 296-670-05-00. In the European coding system, an interchange specification like 5510AGACHMUVZ1L highlights the dense combination of acoustic damping, solar tinting, camera brackets, and heated elements present on these shells.
Managing Aerodynamic Trims, Cowl Plumbing, and Thermal Grid Failures
The exterior perimeter of the EQS glass is lined with hardware tailored specifically for minimal drag. Running down each side of the windshield are specialized vertical A-pillar wind deflector trims, including part A2976904900, which sit flush to smooth airflow over the cabin. At the bottom, the glass meets a multi-piece cowl housing the 650 mm frameless wiper blades (part A2978205300) and the plumbing for the heated washer fluid jets (Option Code 875). When a stress fracture or stone impact immobilizes your car, I can usually be at your location about an hour after you book, bringing the correct aftermarket glass and trim clips straight to your driveway.
A notable issue unique to this model involves the wiper-park de-icing element built into the lower glass perimeter. Multiple owners have reported electrical shorts or concentrated hot spots in this lower defrosting zone, resulting in a sudden pop, a sharp burning odor, and an immediate running crack across the bottom black ceramic frit. Additionally, earlier 2022 builds faced factory recall campaigns involving Pilkington-manufactured glass where the bracket holding the multi-purpose camera (MPC) and rearview mirror suffered from inadequate adhesive bonding, separating directly from the windshield face.
| Component / Feature | V297 (Sedan) Reference | X296 (SUV) Reference |
|---|---|---|
| Standard ADAS Glass | 297-670-96-01 / 297-670-23-01 | 296-670-05-00 |
| Sensor Cover Assembly | 297-821-34-00-9051 | 296-821-32-00-9051 |
| A-Pillar Wind Deflector | A2976904900 | Model-specific aero trim |
| Wiper Blade Specification | 650 mm (A2978205300) | 650 mm Frameless Aero |
Hardware Around the Rearview Mirror and Sensor Cluster
Directly behind the rearview mirror sits a dense sensor cluster shielded by interior plastic covers (such as part 297-821-34-00-9051 on the sedan or 296-821-32-00-9051 on the SUV). This housing encloses the rain, light, and solar condensation sensor alongside the Drive Pilot forward-facing multi-purpose camera carrier plate. Depending on the build, the carrier supports either a mono lens or a stereo camera apparatus. If the replacement glass lacks the precise factory-dimensioned mounting bracket or the correct solar attenuation cutouts around the lens aperture, the vehicle's automated braking and lane-keeping networks will register persistent optical blockages.
Why did my EQS windshield crack horizontally along the wipers without an impact?
This is typically caused by a failure in the wiper park defroster grid. When the localized heating element at the base of the glass shorts out or overheats, the rapid thermal gradient creates an intense stress fracture through the lower black border of the windshield.
Can I install a standard HUD windshield if my EQS has the Augmented Reality display?
No. The Augmented Reality HUD projects images significantly further out into your field of view than a standard HUD. It requires a dedicated wedge interlayer inside the laminated glass to match the projection angle; using standard glass will produce severe double vision and blurred graphics.
Are the windshields identical between the EQS Sedan and EQS SUV?
They are completely different parts. The sedan (chassis V297) uses a much sleeker, lower-raked windshield profile with parts like 297-670-96-01, whereas the SUV (chassis X296) has a taller, more upright glass structure starting with base part 296-670-05-00.
