We rode around Stuttgart as passengers in the 2027 Mercedes-Benz S-Class back in December. Here’s what we learned about the refreshed Mercedes-Benz flagship sedan.
Experiencing the refreshed 2027 Mercedes-Benz S-Class from the rear seat provides a clear sense of where the brand has focused its efforts. The fundamentals remain familiar: an exceptionally quiet cabin, a relaxed driving character, and an emphasis on isolating occupants from the outside world. What becomes apparent, however, is that Mercedes-Benz has invested heavily in refining how the S-Class delivers that comfort rather than reinventing it.
Ride quality remains central to the S-Class identity, and new suspension technologies—most notably a cloud-connected evolution of the AIRMATIC system—play a meaningful role in how the car behaves on the road. The current S-Class already sits near the top of the segment for comfort, but the changes introduced for 2027 appear aimed at making that advantage more consistent across a wider range of driving conditions.
This update also brings a new digital foundation, revised powertrains, and a number of smaller but significant changes throughout the cabin and chassis. While the 2027 model does not represent a full generational shift, Mercedes-Benz says roughly 75 percent of the vehicle has been revised, making this one of the most substantial mid-cycle updates the S-Class has ever received.
2027 Mercedes-Benz S-Class | Photo: Mercedes-BenzThat investment matters, even as the market continues to move away from large luxury sedans. In 2025, passenger cars accounted for just 25 percent of Mercedes-Benz sales in Canada, with the majority concentrated in smaller models like the CLA and C-Class. Despite modest volumes, the S-Class remains a technical reference point for the brand, serving as a preview of how Mercedes-Benz approaches comfort, safety, and digital integration at its highest level.
While we can’t reveal all of the details of the new S-Class, here are 10 new or improved features we experienced on our preview ride around the home of Mercedes-Benz.
1. Cloud-Connected AIRMATIC Suspension
AIRMATIC has long been a defining feature of the S-Class, but for 2027 it takes on a more predictive role. The updated system now incorporates cloud-based road condition data shared between Mercedes-Benz vehicles, allowing the suspension to anticipate changes in road surface before the car reaches them.
Rather than reacting after encountering a bump or imperfection, the system can pre-adjust air pressure and damping characteristics in advance. On the road, this translates into a more uniform ride quality, particularly over inconsistent surfaces where traditional adaptive suspensions can feel momentarily caught off guard. The emphasis here is less on softness and more on maintaining composure, regardless of road quality.
2. E-ACTIVE Active Chassis Management
E-ACTIVE BODY CONTROL remains an optional system, but it significantly alters how the S-Class manages body movement. Using electro-hydraulic actuators at each wheel, the system actively counters roll in corners, pitch under braking, and squat during acceleration, rather than relying solely on passive damping adjustments.
The effect is most noticeable from the rear seats, where body motions are minimized and the cabin remains more level during everyday driving. Beyond comfort, the system also contributes to safety by being able to raise the vehicle slightly in certain impact scenarios, helping manage how collision forces are distributed. It’s a technically complex system, but one that aligns closely with the S-Class’s comfort-first mandate.
2027 Mercedes-Benz S-Class | Photo: Mercedes-Benz3. Revised Powertrains
Mechanical updates for 2027 focus on refinement and response rather than dramatic shifts in character.
The S 580 4MATIC receives the updated M177 EVO 4.0-litre twin-turbocharged V8, producing approximately 530 horsepower and 553 lb-ft of torque. Changes include revised fuel injection, improved airflow, and enhanced thermal management. A flat-plane crankshaft sharpens throttle response, while a 48-volt mild-hybrid system with a 23-horsepower integrated starter generator supports smoother acceleration, near-imperceptible restarts, and extended coasting.
The S 500 4MATIC continues with the 3.0-litre turbocharged inline-six (M256 EVO), now delivering 443 lb-ft of torque, with brief overboost capability up to 472 lb-ft. An electrically driven compressor eliminates low-speed turbo lag, resulting in immediate and linear response that suits the S-Class’s relaxed driving character.
The S 580e 4MATIC plug-in hybrid benefits from a stronger electric motor and improved system integration. Electric assistance is more pronounced at low speeds, and transitions between electric and combustion power feel smoother and less noticeable than before.
2027 Mercedes-Benz S-Class | Photo: Mercedes-Benz4. MB.OS: A New Digital Architecture
One of the most consequential updates for the 2027 S-Class is the introduction of MB.OS, Mercedes-Benz’s new software architecture. Rather than functioning as a traditional infotainment system, MB.OS acts as a centralized operating platform controlling infotainment, comfort systems, driver assistance, and vehicle diagnostics.
This architecture allows for comprehensive over-the-air updates, enabling Mercedes-Benz to refine functionality, introduce new features, and improve system performance throughout the vehicle’s life cycle. Navigation behavior, voice recognition accuracy, driver-assistance calibration, and even chassis-related software can be updated without requiring dealer visits.
MB.OS also enables deeper integration between vehicle systems. Driver-assistance functions combine onboard sensor data with cloud-based inputs for smoother, more predictive behavior. Rear-seat entertainment, user profiles, and streaming services are managed natively within the operating system, reducing fragmentation and improving overall responsiveness.
The new MB.OS system is also offered in the redesigned 2027 Mercedes-Benz CLA and GLB.
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5. Further Reductions in Noise and Vibration
Noise suppression has been further refined for 2027 through a combination of added insulation, improved sealing, acoustic glass enhancements, and revised suspension tuning. These changes don’t alter the character of the cabin so much as they polish it.
At highway speeds, road and wind noise are reduced to the point where they rarely draw attention, allowing conversation and media playback at lower volumes. It’s an incremental improvement, but one that reinforces the S-Class’s role as a long-distance comfort-oriented sedan.
Die neue Mercedes-Benz S-Klasse // The new Mercedes-Benz S-Class6. Heated Seatbelts
Ten years after introducing the first-ever heated armrests in the 2015 S-Class, Mercedes-Benz now incorporates heated seatbelts in its latest full-size premium sedan. Moreover, the seatbelts are now inflatable as well, adding to the plethora of ways the refreshed S-Class is designed to protect occupants in the event of a crash.
7. Expanded Rear-Seat Comfort Features
Rear-seat accommodations continue to receive significant attention. Updated seat designs allow greater recline angles, while heating, ventilation, and massage functions respond more quickly and operate more smoothly.
8. Improved Cabin Air Management
A revised air filtration system now fully recirculates the cabin atmosphere approximately every 90 seconds. Using multi-stage filtration, the system removes fine particulates and airborne contaminants more effectively than before.
This focus on air quality reflects a broader shift toward occupant wellness, positioning the S-Class not just as a comfortable place to sit, but as a controlled interior environment designed for extended travel.
9. Updated Driver Assistance and Lighting Systems
Driver-assistance systems benefit from a denser sensor array and tighter integration through MB.OS. Inputs from cameras, radar, and ultrasonic sensors are processed more cohesively, resulting in smoother interventions and more predictable system behavior.
The latest Digital Light headlamps use micro-LED technology to precisely shape light distribution. Adaptive partial high-beam functionality improves nighttime visibility while minimizing glare for other road users.
2027 Mercedes-Benz S-Class | Photo: Mercedes-Benz10. Rear-Wheel Steering
Rear-wheel steering now comes standard on the S-Class, at least in Europe, improving low-speed maneuverability and high-speed stability. At lower speeds, the rear wheels turn opposite the fronts to reduce the turning radius, while at higher speeds they turn in phase to enhance lane-change stability. Mercedes-Benz Canada couldn’t confirm at time of writing if the feature would be standard or optional for our market.
The 2027 Mercedes-Benz S-Class illustrates how a mid-cycle refresh can meaningfully improve a vehicle without redefining it. Rather than chasing novelty, Mercedes-Benz has focused on refining ride quality, modernizing its digital infrastructure, and improving the consistency of the luxury experience.
In a market increasingly dominated by SUVs, the S-Class continues to serve a different role. It remains a technical reference point for the brand and a clear indication of how Mercedes-Benz approaches comfort, safety, and long-term ownership when compromise is kept to a minimum.
