MERCEDES-BENZ S-CLASS

The 2026 Mercedes-Benz S-Class Saloon (Long wheelbase only, UK-market) is a full-size luxury limousine built in Germany and offered in the UK with four powertrains: S 350 d L 4MATIC (diesel mild hybrid), S 450 e L (petrol PHEV, RWD), S 580 e L 4MATIC (petrol PHEV, AWD) and S 500 L 4MATIC (petrol mild hybrid), each available in AMG Line Premium, AMG Line Premium Plus, and AMG Line Premium+ Executive equipment lines. It combines electrified powertrains, advanced driver assistance, and a tech-focused cabin featuring multiple large displays and extensive ambient lighting.

Trim & Transmission Lineup

All UK S-Class variants are long‑wheelbase saloons with a 9G‑TRONIC 9‑speed automatic transmission. Power and some performance data for UK engines are based on Mercedes-Benz UK and closely related European specs.

Engine & Drivetrain by Variant

\*Where torque is “est.” it is inferred from current EU/US S-Class powertrains in the same engine family, as Mercedes UK does not list exact torque for all engines in the public overview.

Dimensions

UK long‑wheelbase S‑Class saloon dimensions are aligned with the global long‑wheelbase S‑Class.

Exact numerical values can vary slightly by engine, equipment and wheel size; the above figures are representative of the UK long‑wheelbase S‑Class saloon range.

Available Colors (UK S-Class Saloon Long)

Mercedes-Benz offers a broad palette including standard, metallic and MANUFAKTUR paints; the exact UK color list mirrors current S‑Class offerings with minor regional differences. Below is a consolidated overview of common UK paints and their availability by trim; special MANUFAKTUR colors may be optionally available across all grades.

Interior upholsteries typically include black, beige, brown and two‑tone Nappa or MANUFAKTUR Exclusive leathers with various trim inlays (open‑pore wood, high‑gloss wood, metal weaves), and are largely cross‑compatible with the three equipment lines.

Key Features by Trim

Feature content below reflects the UK AMG Line Premium, AMG Line Premium Plus, and AMG Line Premium+ Executive hierarchy, consolidated from Mercedes UK descriptions and typical S‑Class equipment logic.

AMG Line Premium (all engines)

Safety & ADAS

• Active Brake Assist (AEB with pedestrian and cyclist detection)
• Active Distance Assist DISTRONIC (adaptive cruise) with route‑based speed adaptation
• Active Lane Keeping Assist & Lane Departure Warning
• Blind Spot Assist with exit warning function
• Traffic Sign Assist (speed limit recognition)
• Attention Assist (driver drowsiness monitor)
• Parking package with reversing camera and front/rear sensors
• Pre‑Safe and Pre‑Safe Sound collision preparation systems
• Tyre pressure monitoring system

Infotainment & Connectivity

• MBUX (latest generation) with large central OLED portrait touchscreen
• 12.3‑inch digital instrument cluster
• MBUX voice assistant (“Hey Mercedes”) with online functions
• Navigation with augmented reality display (front screen overlay)
• Smartphone integration: Apple CarPlay & Android Auto (wireless in most markets)
• DAB digital radio, Bluetooth, USB‑C connectivity
• At least Burmester® 3D surround sound system (high‑end 4D on higher trims)
• Over‑the‑air software update capability

Comfort & Interior

• Nappa leather upholstery (varies by exact sub‑package; at least high‑grade leather in UK)
• Electrically adjustable front seats with memory & heating
• Dual‑zone or four‑zone THERMOTRONIC automatic climate control (four‑zone now widely standard on S‑Class)
• 64‑color LED ambient lighting with dynamic functions and warning animations
• Automatic soft‑close doors and flush door handles
• Keyless‑Go with keyless entry and start
• Heated steering wheel (market‑ and pack‑dependent, often standard/optional here)

Exterior

• AMG Line exterior styling (sportier bumpers, side skirts, AMG front apron)
• Multibeam LED headlamps with Adaptive Highbeam Assist Plus
• LED tail lamps with animated coming/leaving home signature
• 19‑inch or 20‑inch AMG alloy wheels (engine‑dependent)
• Electric panoramic sunroof (often standard or optional depending on sub‑grade)

Performance & Chassis

• AIRMATIC air suspension with continuously adjustable damping (ADS+)
• Dynamic Select driving modes (Eco, Comfort, Sport, Individual)
• 9G‑TRONIC automatic with steering‑wheel‑mounted shift paddles
• 4MATIC all‑wheel drive on S 350 d and S 500; rear‑wheel drive on S 450 e

AMG Line Premium Plus (increment over AMG Line Premium)

Safety & ADAS

• 360‑degree camera system with 3D surround visualization
• Extended Parking Package with Active Parking Assist (auto parking for bay and parallel spaces)
• Enhanced driving assistance features bundles (e.g., Active Steering Assist, lane‑change support, more detailed route‑based speed adaptation – package‑dependent)

Infotainment & Connectivity

• Upgraded Burmester® 3D or 4D surround sound system with more speakers and seat resonators (4D in higher PHEV/petrol trims)
• Head‑up display projecting speed, navigation and assistance info on the windscreen
• Additional USB‑C ports and more extensive rear connectivity (depending on options)

Comfort & Interior

• Four‑zone climate control including separate rear climate zone (for 2nd row)
• Front seats with extended adjustment and sometimes cooling (ventilation) as standard on higher engines
• Power‑closing boot lid with HANDS‑FREE ACCESS (kick operation)
• Enhanced ambient lighting with more animations and integration into assistance systems

Exterior

• Larger AMG wheels (commonly 20‑inch) and more expressive wheel designs
• Additional exterior chrome detailing and higher‑grade trim finishes
• Panoramic sliding sunroof often standard here (if not already)

Performance & Chassis

• Option availability for rear‑axle steering (up to 10° on some models), dramatically reducing turning circle
• More comprehensive drive‑mode customization in Individual mode

AMG Line Premium+ Executive (increment over AMG Line Premium Plus – rear‑luxury focused)

Primarily enhances the rear cabin; offered on all four engines and especially demanded on chauffeur‑focused cars like the S‑Class in the UK.

Safety & ADAS

• Additional rear passenger safety enhancements such as rear side airbags and sometimes belt bags, depending on configuration
• Enhanced rear occupant protection logic in Pre‑Safe

Infotainment & Connectivity

• Rear seat entertainment system with dual rear displays, integrated MBUX for each rear passenger, and separate control of media and navigation (package names vary)
• Rear tablet or MBUX rear tablet in centre armrest on some specs
• Additional rear USB‑C ports, HDMI/aux inputs (where equipped)

Comfort & Interior

• Executive rear package:
• Electric reclining rear seats with memory, heating and ventilation
• Rear seat massage with several programs (hot stone‑type, wave, etc.)
• Electrically extendable leg rests (particularly on rear passenger‑side seat)
• Rear comfort head restraints and additional cushions
• Heated armrests (front and rear) and additional rear comfort features
• More luxurious trim options (e.g., open‑pore wood packages, MANUFAKTUR interior colors)
• Option of four‑seat layout with individual rear seats and a centre console instead of a bench

Exterior

• Specification largely mirrors AMG Line Premium Plus but may include unique wheel designs and additional MANUFAKTUR exterior options.

Performance & Chassis

• Same powertrain and chassis as corresponding non‑Executive engine/grade; focus is comfort rather than dynamics.

Battery & Charging (Plug‑in Hybrid Variants)

Data is based on the latest S‑Class PHEV technical information (S 580e from MBUSA and global data); UK figures are very similar.

S 450 e L (RWD PHEV)

• Battery capacity (gross): approx. 22 kWh lithium‑ion
• Electric range (WLTP, est.): ~90–110 km (≈ 56–68 miles), depending on wheel size and conditions
• Combined power: around 476–510 hp (system, est. EU spec)
• Electric top speed: typically up to ~140 km/h (≈ 87 mph) in EV mode (family data)
• AC charging:
• On‑board charger up to 11 kW AC three‑phase (approx. 0–100% in 2–3 hours on suitable wallbox)
• DC fast charging (if equipped):
• Up to 60 kW DC (approx. 10–80% in around 20–30 minutes)

S 580 e L 4MATIC (AWD PHEV)

• Battery capacity (gross): 22 kWh lithium‑ion
• Combined power: 503 hp system, 553 lb‑ft (≈ 750 Nm) system torque
• Electric range: up to about 47–50 miles EPA for the US sedan; WLTP long‑wheelbase European figures typically around 90–110 km (≈ 56–68 miles)
• AC charging: 11 kW AC onboard charger; 0–100% in about 2–3 hours with 3‑phase wallbox
• DC fast charging: up to 60 kW DC; 10–80% in around 20–30 minutes where DC option fitted

Both PHEVs can drive in EV, Hybrid, Battery Hold and Charge modes, and can precondition the cabin while plugged in using grid power.

Safety and Driver Assistance Features (All Variants – UK)

The S‑Class is positioned as a tech flagship, so most safety and ADAS systems are standard or widely available across all UK engines and trims.

Passive & Structural Safety

• Rigid passenger cell with extensive use of high‑strength steels and aluminium
• Front, side, curtain and knee airbags; optional/rear side airbags and belt bags on Executive models
• New centre airbag between front seats to reduce head contact in side impacts
• ISOFIX child‑seat anchor points on rear outer seats
• Active bonnet and pedestrian impact protection structures

Core Driver Assistance & Collision Avoidance

• Active Brake Assist with autonomous emergency braking (AEB) for vehicles, pedestrians and cyclists
• Active Distance Assist DISTRONIC (adaptive cruise) with stop & go in traffic jams
• Active Steering Assist to help keep the car centred in its lane (part of Driving Assistance packages)
• Active Lane Keeping Assist and Lane Departure Warning (steering input and vibration)
• Active Blind Spot Assist with exit warning (alerts when opening doors into traffic)
• Traffic Sign Assist with speed limit recognition
• Crosswind Assist and Evasive Steering Assist (package‑dependent)
• Attention Assist (driver drowsiness detection)

Parking & Low‑Speed Assistance

• Parktronic with front and rear parking sensors
• Reversing camera (AMG Line Premium) and 360° surround‑view camera (Premium Plus and Executive)
• Active Parking Assist with semi‑autonomous parallel and bay parking, including automatic steering, braking and gear selection
• Optional remote parking features in some markets (via app or key – market‑dependent)

Lighting & Visibility

• MULTIBEAM LED headlights with Adaptive Highbeam Assist Plus, allowing continuous main beam without dazzling other drivers
• LED daytime running lights and LED rear lamps with animated welcome/exit sequences
• Rain‑sensing wipers and automatic headlamp activation
• 64‑color ambient interior lighting that can highlight risks (e.g., blind‑spot warning pulses in the door area)

Chassis & Stability Systems

• ESP® with curve control, traction control and crosswind support
• AIRMATIC air suspension with automatic level control, improving stability during braking and load changes
• Optional rear‑axle steering (especially beneficial on the long‑wheelbase models, reducing turning circle and improving high‑speed stability)

This document covers all UK‑listed 2026 Mercedes‑Benz S‑Class Saloon Long variants – S 350 d L 4MATIC, S 450 e L, S 580 e L 4MATIC, and S 500 L 4MATIC – each in AMG Line Premium, AMG Line Premium Plus, and AMG Line Premium+ Executive equipment grades.