The Mercedes-Benz GLE 450d 4MATIC, introduced with the V167 facelift in 2023, represents a significant offering in the mid-size luxury SUV segment. This variant combines a potent diesel engine with mild hybrid technology, aiming to deliver both performance and improved fuel efficiency. Positioned as a mid-to-upper trim level within the GLE range, the 450d caters to buyers seeking a balance between driving dynamics and long-distance comfort. It builds upon the foundation of the V167 generation GLE, which debuted in 2018, offering a refreshed design and updated technology.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | GLE |
| Generation | GLE SUV (V167, facelift 2023) |
| Type | GLE 450d (367 Hp) EQ Boost 4MATIC 9G-TRONIC |
| Start of production | 2023 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | SUV |
| Seats | 5-7 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 7.6-8.6 l/100 km (30.9 – 27.4 US mpg, 37.2 – 32.8 UK mpg, 13.2 – 11.6 km/l) |
| CO2 emissions (WLTP) | 199-226 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 5.6 sec |
| Acceleration 0 – 62 mph | 5.6 sec |
| Acceleration 0 – 60 mph | 5.3 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d-ISC-FCM |
| Weight-to-power ratio | 6.3 kg/Hp, 157.5 Hp/tonne |
| Weight-to-torque ratio | 3.1 kg/Nm, 321.9 Nm/tonne |
| Gross battery capacity | 0.9 kWh |
| Battery voltage | 48 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Battery location | Under the trunk |
| Electric motor power | 20 Hp |
| Electric motor Torque | 200 Nm (147.51 lb.-ft.) |
| Electric motor location | Between the combustion engine and the transmission |
| Power | 367 Hp @ 4000 rpm |
| Torque | 750 Nm @ 1350-2800 rpm (553.17 lb.-ft. @ 1350-2800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine displacement | 2989 cm3 (182.4 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Compression ratio | 15.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | BiTurbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Kerb Weight | 2330 kg (5136.77 lbs.) |
| Max. weight | 3110 kg (6856.38 lbs.) |
| Max load | 780 kg (1719.61 lbs.) |
| Trunk (boot) space – minimum | 630 l (22.25 cu. ft.) |
| Trunk (boot) space – maximum | 2055 l (72.57 cu. ft.) |
| Fuel tank capacity | 85 l (22.45 US gal | 18.7 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 2700 kg (5952.48 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 108 kg (238.1 lbs.) |
| Length | 4924 mm (193.86 in.) |
| Width | 2010 mm (79.13 in.) |
| Width including mirrors | 2157 mm (84.92 in.) |
| Height | 1797 mm (70.75 in.) |
| Wheelbase | 2995 mm (117.91 in.) |
| Front track | 1680 mm (66.14 in.) |
| Rear track | 1726 mm (67.95 in.) |
| Front overhang | 925 mm (36.42 in.) |
| Rear overhang | 1004 mm (39.53 in.) |
| Ride height (ground clearance) | 205 mm (8.07 in.) |
| Minimum turning circle | 12.02 m (39.44 ft.) |
| Drivetrain Architecture | ICE and electric motor drive all four wheels, operating in mixed mode. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 9 |
| Gearbox type | Automatic transmission G-TRONIC |
Powertrain & Engine Architecture
The heart of the GLE 450d is the OM656 3.0-liter inline-six diesel engine. This engine is a significant departure from the older V6 diesels used in previous Mercedes-Benz models, offering improved refinement and efficiency. The OM656 utilizes a stepped combustion process and a two-stage turbocharging system, contributing to its high torque output of 750 Nm (553 lb-ft) available from a low 1350 rpm. The engine also features a Diesel Particulate Filter (DPF) to meet stringent emissions standards. Integrated into the powertrain is a 48-volt mild hybrid system, employing a belt-driven starter-generator. This EQ Boost system provides an additional 20 horsepower and 200 Nm (147 lb-ft) of torque, enabling features like smoother start/stop operation and a degree of electric assistance during acceleration. The engine is paired with Mercedes-Benz’s 9G-TRONIC nine-speed automatic transmission, known for its smooth shifts and wide gear ratio spread.
Driving Characteristics
The GLE 450d delivers a refined and powerful driving experience. The combination of the high-torque diesel engine and the 9G-TRONIC transmission results in effortless acceleration, with a 0-60 mph time of around 5.3 seconds. The EQ Boost system provides a noticeable boost during initial acceleration, minimizing turbo lag. The transmission’s gear ratios are well-suited for both highway cruising and spirited driving. Compared to the gasoline-powered GLE 450, the 450d offers superior fuel economy and a more relaxed driving experience, particularly on long journeys. While not as overtly sporty as some competitors, the GLE 450d provides ample power for overtaking and maintaining comfortable speeds.
Equipment & Trim Levels
The GLE 450d typically comes well-equipped as standard. Common features include Mercedes-Benz User Experience (MBUX) infotainment system with a large touchscreen display, leather upholstery, heated front seats, automatic climate control, and a comprehensive suite of safety features such as adaptive cruise control, lane keeping assist, and automatic emergency braking. Optional extras include air suspension, a panoramic sunroof, premium sound system, and various interior trim upgrades. The interior design emphasizes luxury and technology, with high-quality materials and a modern aesthetic.
Chassis & Braking
The GLE 450d utilizes a sophisticated chassis design, featuring a double-wishbone front suspension and an independent multi-link rear suspension. Air suspension is often an optional extra, providing adjustable ride height and improved comfort. The braking system consists of ventilated discs on all four wheels, providing ample stopping power. The 4MATIC all-wheel-drive system ensures excellent traction in various weather conditions. The steering is precise and well-weighted, offering a confident feel on the road.
Market Reception & Comparison
The GLE 450d has been generally well-received by automotive critics, praised for its refined powertrain, comfortable ride, and luxurious interior. Its fuel economy is a significant advantage over gasoline-powered rivals, making it an attractive option for drivers who cover long distances. Compared to other GLE variants, such as the GLE 350 or the AMG-tuned GLE 53, the 450d strikes a balance between performance and efficiency. While the GLE 350 offers a lower price point, it lacks the 450d’s power and refinement. The GLE 53 prioritizes performance, but at the expense of fuel economy.
Legacy
The OM656 engine family, as used in the GLE 450d, has proven to be a reliable and durable powertrain. While long-term reliability data is still emerging for the 2023 facelift models, the engine’s robust construction and advanced technology suggest it will offer years of dependable service. On the used car market, the GLE 450d is expected to hold its value well, appealing to buyers seeking a luxurious and efficient SUV with a proven track record. The integration of mild hybrid technology positions this variant as a forward-looking option in the evolving automotive landscape.
