Mercedes-Benz GLS

2027 MERCEDES-BENZ GLS 450 4MATIC (X167) — UNITED STATES SPECIFICATION

Engine and Drivetrain

The GLS 450 4MATIC is powered by the Mercedes-Benz M256 3.0-litre turbocharged inline-six petrol engine displacing 2,999 cc, fed by direct injection through a single twin-scroll turbocharger supported by an electric auxiliary compressor that fills in low-rpm response before exhaust gas volume builds. Compression ratio is 10.5:1. The engine is rated at 375 hp (276 kW) and 560 Nm (413 lb-ft) of torque, with a 48-volt integrated starter-generator between the engine and gearbox providing EQ Boost torque assistance, belt-free engine ancillaries, sailing mode and restart. Drive reaches the road through the 9G-TRONIC nine-speed torque-converter automatic and permanent 4MATIC all-wheel drive. Top speed is electronically limited to 209 km/h (130 mph), and the manufacturer quotes 0-60 mph in approximately 6.1 seconds. EPA fuel economy for this configuration is rated at 19 mpg city and 24 mpg highway.

Chassis, Steering and Brakes

Suspension is independent throughout — double wishbones at the front and a multi-link arrangement at the rear — carried on AIRMATIC self-levelling air springs with the Adaptive Damping System, which allows selectable ride heights and continuously variable damping. Steering is an electromechanical rack-and-pinion system with speed-sensitive assistance. Braking is by ventilated discs at all four corners with ABS, electronic brake-force distribution, Brake Assist, and the Adaptive Brake HOLD and hill-start functions. This unit rides on 21-inch AMG multi-spoke alloy wheels, 10.0Jx21 at the front and 11.0Jx21 at the rear, shod with staggered 275/45 R21 front and 315/40 R21 rear tyres.

Dimensions and Capacities

Overall length is 5,207 mm on a 3,135 mm wheelbase, with a body width of 1,956 mm (2,030 mm across the mirrors) and an overall height of 1,828 mm. Ground clearance is 203 mm at the AIRMATIC standard ride height. Kerb weight is approximately 2,505 kg and the gross vehicle weight rating stated on the vehicle's own certification label is 3,390 kg (7,474 lb), split 1,620 kg front and 1,895 kg rear. Cargo volume measures 493 litres behind the third row, 1,209 litres behind the second row and 2,399 litres maximum with both rear rows folded, on the US EPA measure. The fuel tank holds 90 litres and braked towing capacity is 3,493 kg (7,700 lb).

Exterior

The vehicle is finished in MANUFAKTUR Alpine Grey exterior paint over a panoramic sliding sunroof and the chrome exterior trim package. Lighting is by LED high-performance headlamps with Adaptive High Beam Assist and full LED tail lamps. Aluminium roof rails, running boards, power-folding heated exterior mirrors, rear privacy glass, integrated twin exhaust finishers and a hands-free power tailgate complete the exterior specification.

Interior and Seating

The cabin seats seven across three rows, trimmed in ARTICO man-made leather. The front seats are power-adjustable with memory and heating, the second row is a split-folding sliding bench, and the third row folds electrically into the load floor. Cabin appointments include open-pore wood trim, a multifunction leather steering wheel, 64-colour ambient lighting, tri-zone automatic climate control, illuminated door sills, and acoustic laminated front side glass.

Infotainment and Connectivity

MBUX runs across twin 12.3-inch widescreen displays combining a digital instrument cluster with the central touchscreen, operated by touch, the console touchpad, steering-wheel touch controls or the MBUX Voice Assistant with natural language understanding. The system carries navigation with Live Traffic Information, wireless Apple CarPlay and Android Auto, Mercedes me connect telematics, a head-up display, a Burmester surround sound system, wireless smartphone charging and USB-C charging points across all three rows.

Driver Assistance and Safety

Driver assistance includes Active Brake Assist with cross-traffic function, Active Distance Assist DISTRONIC adaptive cruise control, Active Steering Assist, Active Blind Spot Assist, Active Lane Keeping Assist, Evasive Steering Assist, Crosswind Assist, Traffic Sign Assist and ATTENTION ASSIST. Parking is supported by a 360-degree surround view camera, PARKTRONIC sensors and Active Parking Assist. Passive protection comprises dual front, front side, driver knee and front passenger knee airbags with full-length window curtain airbags, PRE-SAFE anticipatory occupant protection, pyrotechnic belt pretensioners with force limiters, ISOFIX/LATCH anchorages in the second row and a reinforced high-strength steel safety cell. No NHTSA or IIHS crash rating had been published for the 2027 model year at the time of listing.

Towing and Capability

Permanent 4MATIC all-wheel drive with the AIRMATIC air suspension gives selectable ride heights for loading and rough-surface clearance. Braked towing capacity is 3,493 kg (7,700 lb), and the vehicle carries trailer hitch preparation from the factory.