The Mercedes-Benz GLE 350de, introduced in 2023 as part of the C167 GLE Coupe facelift, represents a significant step in the brand’s push towards electrification. This plug-in hybrid (PHEV) variant combines a 2.0-liter four-cylinder diesel engine with an electric motor, delivering a combined system output of 333 horsepower and 553 lb-ft of torque. Positioned as a premium offering within the GLE Coupe lineup, the 350de aims to provide a balance of performance, efficiency, and reduced emissions, appealing to buyers seeking a luxurious and environmentally conscious SUV. It builds upon the foundation of the W167 GLE platform, known for its spacious interior and advanced technology.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | GLE |
| Generation | GLE Coupe (C167, facelift 2023) |
| Type (Engine) | GLE 350de (333 Hp) Plug-in Hybrid 4MATIC 9G-TRONIC |
| Start of production | 2023 |
| Powertrain Architecture | PHEV (Plug-in Hybrid Electric Vehicle) |
| Body type | Coupe, SUV |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 0.6-0.8 l/100 km (392 – 294 US mpg, 470.8 – 353.1 UK mpg, 166.7 – 125 km/l) |
| CO2 emissions (WLTP) | 15-20 g/km |
| Fuel Type | Diesel / electricity |
| Acceleration 0 – 100 km/h | 6.9 sec |
| Acceleration 0 – 62 mph | 6.9 sec |
| Acceleration 0 – 60 mph | 6.6 sec |
| Maximum speed | 210 km/h (130.49 mph) |
| Emission standard | Euro 6d-ISC-FCM |
| Weight-to-power ratio | 8 kg/Hp, 125.4 Hp/tonne |
| Weight-to-torque ratio | 3.5 kg/Nm, 282.5 Nm/tonne |
| Gross battery capacity | 31.2 kWh |
| Net (usable) battery capacity | 23.3 kWh |
| Battery technology | Lithium-ion (Li-Ion) |
| Battery location | Under the trunk |
| All-electric range (WLTP) | 94-109 km (58.41 – 67.73 mi) |
| Average Energy consumption (WLTP) | 23.4-26.6 kWh/100 km (37.66 – 42.81 kWh/100 mi, 89 – 79 MPGe, 4.3 – 3.8 km/kWh, 2.7 – 2.3 mi/kWh) |
| Electric motor power | 136 Hp |
| Electric motor Torque | 440 Nm (324.53 lb.-ft.) |
| Electric motor location | Between the combustion engine and the transmission |
| Electric motor type | Synchronous |
| System power | 333 Hp |
| System torque | 750 Nm (553.17 lb.-ft.) |
| Power | 197 Hp |
| Torque | 440 Nm (324.53 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 654 M |
| Engine displacement | 1993 cm3 (121.62 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 94.3 mm (3.71 in.) |
| Compression ratio | 15.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 6 l (6.34 US qt | 5.28 UK qt) |
| Kerb Weight | 2655 kg (5853.27 lbs.) |
| Max. weight | 3230 kg (7120.93 lbs.) |
| Max load | 575 kg (1267.66 lbs.) |
| Trunk (boot) space – minimum | 510 l (18.01 cu. ft.) |
| Trunk (boot) space – maximum | 1645 l (58.09 cu. ft.) |
| Fuel tank capacity | 65 l (17.17 US gal | 14.3 UK gal) |
| Max. roof load | 75 kg (165.35 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 | 4941 mm (194.53 in.) |
| Width | 2018 mm (79.45 in.) |
| Width including mirrors | 2157 mm (84.92 in.) |
| Height | 1730 mm (68.11 in.) |
| Wheelbase | 2935 mm (115.55 in.) |
| Front track | 1680 mm (66.14 in.) |
| Rear (Back) track | 1728 mm (68.03 in.) |
| Front overhang | 925 mm (36.42 in.) |
| Rear overhang | 1081 mm (42.56 in.) |
| Ride height (ground clearance) | 205 mm (8.07 in.) |
| Minimum turning circle (turning diameter) | 11.87 m (38.94 ft.) |
| Front suspension | Double wishbone, Transverse stabilizer, Air Suspension – Optional |
| Rear suspension | Independent multi-link suspension, Transverse stabilizer, Air Suspension – Optional |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Number of gears and type of gearbox | 9 gears, automatic transmission G-TRONIC |
Powertrain & Engine Architecture
The GLE 350de’s powertrain centers around the OM 654 M 2.0-liter inline-four diesel engine. This engine utilizes a commonrail direct injection system and a turbocharger with intercooling to produce 197 horsepower and 325 lb-ft of torque. The engine features a high compression ratio of 15.5:1 and a double overhead camshaft (DOHC) valvetrain. Integrated with the diesel engine is a 136 horsepower electric motor, powered by a 31.2 kWh (gross) / 23.3 kWh (net) lithium-ion battery pack located under the trunk floor. The electric motor is a synchronous type and delivers 325 lb-ft of torque. The combined system output of 333 horsepower and 553 lb-ft of torque is managed by the 9G-TRONIC nine-speed automatic transmission, which is specifically calibrated for hybrid applications. This transmission allows for smooth transitions between electric, diesel, and combined power modes.
Driving Characteristics
The GLE 350de offers a unique driving experience, blending the refinement of a diesel engine with the instant torque of an electric motor. In electric-only mode, the vehicle provides silent and emissions-free driving for up to 58-68 miles (WLTP), suitable for daily commutes. When the diesel engine engages, the transition is seamless, and the combined power delivery provides strong acceleration, achieving 0-60 mph in approximately 6.6 seconds. The 9G-TRONIC transmission’s gear ratios are optimized for both fuel efficiency and performance, ensuring that the engine operates within its optimal range. Compared to the gasoline-powered GLE variants, the 350de offers superior low-end torque and improved fuel economy. However, the added weight of the battery pack does slightly impact handling agility compared to lighter models.
Equipment & Trim Levels
The GLE 350de typically comes well-equipped, reflecting its premium positioning. Standard features include Mercedes-Benz’s MBUX infotainment system with a large touchscreen display, leather upholstery, heated front seats, and a panoramic sunroof. Advanced driver-assistance systems, such as adaptive cruise control, lane-keeping assist, and automatic emergency braking, are also standard. Optional extras include air suspension, upgraded audio systems, and various interior trim packages. The interior design is consistent with other GLE Coupe models, emphasizing luxury and modern aesthetics.
Chassis & Braking
The GLE 350de utilizes a double-wishbone front suspension and an independent multi-link rear suspension. Air suspension is available as an option, providing adjustable ride height and improved comfort. The braking system consists of ventilated discs on all four wheels, coupled with ABS, electronic brakeforce distribution, and brake assist. The steering system is a rack-and-pinion type with electric power steering. The vehicle’s chassis is tuned to balance comfort and handling, providing a stable and controlled ride.
Market Reception & Comparison
The GLE 350de has been generally well-received by automotive critics, praised for its fuel efficiency, smooth powertrain, and luxurious interior. Its ability to travel significant distances on electric power is a major selling point. Compared to other GLE Coupe variants, such as the GLE 450, the 350de offers lower running costs and reduced emissions, but slightly less overall performance. Against competitors like the BMW X6 xDrive40e and the Volvo XC90 Recharge, the GLE 350de holds its own in terms of technology, comfort, and fuel economy.
Legacy
The Mercedes-Benz GLE 350de represents a key step in Mercedes-Benz’s electrification strategy. While long-term reliability data is still emerging, the OM 654 diesel engine has proven to be robust and reliable in other applications. The hybrid system components are covered by Mercedes-Benz’s standard warranty. As the used car market matures, the GLE 350de is expected to retain its value due to its fuel efficiency, luxurious features, and growing demand for plug-in hybrid vehicles. Its combination of diesel efficiency and electric range makes it a compelling option for buyers seeking a versatile and environmentally conscious SUV.
