Why this retrofit matters in daily driving
The main problem this screen solves is simple: older Mercedes-Benz CLS interiors can feel dated once you rely on modern navigation and app-based media. BONROAD’s 12.3-inch unit upgrades the dashboard into a wider, brighter interface while keeping the car’s original controls in play.
That makes it more than a cosmetic swap, because the benefit is less tapping on a small factory display and more glance-friendly access to maps, calls, and music. For drivers who spend real time in traffic, that change is felt every day, so what does the panel actually bring to the cabin?
12.3 inches and 2400×900: what the screen size changes
The 12.3-inch format gives the CLS cabin a more modern, panoramic look that fills the center stack without feeling like an aftermarket tablet bolted on top. The 2400×900 resolution suggests a sharp, wide image that should suit map detail, album art, and split-screen layouts better than older low-resolution units.
In practical terms, that wider canvas makes route guidance easier to read at a glance, which matters when you are merging, parking, or checking a turn in heavy traffic. Compared with smaller 7- or 8-inch head units, this style is built for drivers who want the display to feel native rather than added on, and that leads into how it connects.
Wireless CarPlay and Android Auto without cable clutter

Wireless CarPlay and Android Auto are the feature set that most owners will notice first, because they remove the daily ritual of plugging in a phone. Once connected, the screen becomes a cleaner hub for navigation, calls, voice prompts, and streaming apps, while the built-in microphone supports hands-free use.
That matters in a Mercedes-Benz retrofit because the factory look is only useful if the interface stays easy to live with. Users have given the product a perfect early rating, though the sample size is still very small, so the stronger signal here is the feature mix rather than broad market feedback—how well does it fit the car itself?
Mercedes-Benz CLS NTG 4.5 integration and steering-wheel control
This unit is designed for CLS W218, X218, and C218 models with the NTG 4.5 system, which is the key compatibility detail to verify before anything else. Support for CAN-bus and steering-wheel controls means the upgrade aims to preserve the factory driving feel instead of forcing you into a generic universal menu.
That is a major advantage over universal Android head units, which often look out of place and can complicate vehicle-specific functions. The inclusion of reversing input also makes the system more useful in tight garages and city parking, which is where the next set of features starts to matter.
Voice control, split screen, and built-in audio support

Voice control reduces screen touching when you need directions or a quick call, and split screen helps keep navigation visible while music or another app stays open. The built-in speaker and microphone are useful as fallback hardware, while the 4×45 output rating points to enough power for a normal in-car audio setup when paired correctly.
Linux as the operating system is worth noting because it often means a more controlled, appliance-like experience than a full open Android box. It is not aimed at heavy app installation, so the screen suits drivers who want stable navigation and smartphone mirroring more than a customizable media tablet, which brings us to the installation profile.
What kind of owner will appreciate it most?
This is a strong fit for CLS owners who want a modern infotainment feel without changing the character of the cabin. It is especially relevant if you value wireless phone integration, wide-screen navigation, and factory control retention over extra software freedom.
The 12-month warranty and CE/WEEE certifications add basic reassurance, while the 2.5 kg weight and double-DIN category suggest a substantial retrofit rather than a lightweight add-on. If your car matches the NTG 4.5 platform, the remaining question is whether you want a clean OEM-style upgrade or a more experimental multimedia setup.

















