The Mercedes-Benz GLE 350de, introduced in 2023 as part of the V167 GLE SUV 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 lineup, the 350de caters to buyers seeking both luxury and improved fuel efficiency, while also benefiting from reduced emissions. It’s a key component of Mercedes-Benz’s strategy to offer electrified options across its entire model range, particularly in European markets where diesel-electric hybrids are popular due to favorable tax incentives and emissions regulations.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | GLE |
| Generation | GLE SUV (V167, 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 | SUV |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 0.6-0.9 l/100 km (392 – 261.3 US mpg, 470.8 – 313.9 UK mpg, 166.7 – 111.1 km/l) |
| CO2 emissions (WLTP) | 16-23 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 | 7.9 kg/Hp, 127.1 Hp/tonne |
| Weight-to-torque ratio | 3.5 kg/Nm, 286.3 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) | 89-105 km (55.3 – 65.24 mi) |
| Average Energy consumption (WLTP) | 24.2-27.2 kWh/100 km (38.95 – 43.77 kWh/100 mi, 87 – 77 MPGe, 4.1 – 3.7 km/kWh, 2.6 – 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 | 2620 kg (5776.11 lbs.) |
| Max. weight | 3280 kg (7231.16 lbs.) |
| Max load | 660 kg (1455.05 lbs.) |
| Trunk (boot) space – minimum | 490 l (17.3 cu. ft.) |
| Trunk (boot) space – maximum | 1915 l (67.63 cu. ft.) |
| Fuel tank capacity | 65 l (17.17 US gal | 14.3 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 | 1795 mm (70.67 in.) |
| Wheelbase | 2995 mm (117.91 in.) |
| Front track | 1680 mm (66.14 in.) |
| Rear (Back) track | 1727 mm (67.99 in.) |
| Minimum turning circle | 12.02 m (39.44 ft.) |
| Drivetrain Architecture | ICE and electric motor drive all four wheels in full electric or mixed mode. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 9 gears, automatic transmission G-TRONIC |
| 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 |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 275/55 R19 |
| Wheel rims size | 19 |
INTRODUCTION
The Mercedes-Benz GLE 350de, launched in 2023, is a plug-in hybrid SUV based on the V167 GLE platform, which also underpins models like the GLE 350 and GLE 450. It represents a significant advancement in Mercedes-Benz’s EQ Power strategy, combining a diesel engine with electric power to deliver both efficiency and performance. The “de” designation signifies its diesel-electric hybrid configuration. This model was primarily aimed at the European market, where diesel engines remain popular and plug-in hybrids benefit from government incentives. The 350de offers a compelling alternative to traditional gasoline-powered SUVs, providing a substantial all-electric range and reduced emissions.
Powertrain & Engine Architecture
At the heart of the GLE 350de lies a 2.0-liter inline-four cylinder diesel engine, internally designated as the OM 654 M. This engine utilizes a sophisticated diesel commonrail fuel injection system and a turbocharger with intercooling to produce 197 horsepower and 324.53 lb-ft of torque. The engine features a double overhead camshaft (DOHC) valvetrain and a high compression ratio of 15.5:1, contributing to its efficiency. 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 delivers 324.53 lb-ft of torque. The combined system output is 333 horsepower and a substantial 553.17 lb-ft of torque. Power is delivered to all four wheels via Mercedes-Benz’s 9G-TRONIC nine-speed automatic transmission and the 4MATIC all-wheel-drive system. The transmission is specifically calibrated to work seamlessly with both the diesel engine and the electric motor, optimizing efficiency and performance in various driving scenarios.
Driving Characteristics
The GLE 350de offers a refined and versatile driving experience. In electric-only mode, the vehicle provides silent and smooth acceleration, capable of covering up to 65.24 miles (WLTP) on a full charge. Switching to hybrid mode allows the engine and electric motor to work in tandem, delivering strong acceleration and responsive performance. The 0-60 mph sprint takes approximately 6.6 seconds. The 9G-TRONIC transmission provides smooth and quick gear changes, enhancing the overall driving experience. While the diesel engine provides ample power for highway cruising and overtaking, the electric motor fills in the gaps, providing instant torque and improving responsiveness. Compared to the gasoline-powered GLE 350, the 350de offers superior fuel economy and lower emissions, but may feel slightly heavier due to the added weight of the battery pack. Compared to higher-performance GLE models like the GLE 450, the 350de prioritizes efficiency over outright speed.
Equipment & Trim Levels
The GLE 350de typically comes well-equipped with standard features including Mercedes-Benz’s MBUX infotainment system with a large touchscreen display, leather upholstery, heated front seats, and a comprehensive suite of safety features. Optional extras include air suspension, a panoramic sunroof, premium sound system, and advanced driver-assistance systems like adaptive cruise control and lane-keeping assist. Interior trim options vary, allowing buyers to customize the cabin to their preferences. The dashboard layout is similar to other GLE models, with a focus on luxury and technology. The standard equipment level is generally high, reflecting the vehicle’s premium positioning.
Chassis & Braking
The GLE 350de utilizes a double-wishbone front suspension and an independent multi-link rear suspension, providing a comfortable and controlled ride. Air suspension is available as an option, further enhancing ride quality and allowing for adjustable ride height. The vehicle is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. ABS (Anti-lock Braking System) is standard, along with other electronic stability control systems. The suspension is tuned to accommodate the added weight of the battery pack, ensuring stable handling and predictable braking performance. Stabilizer bars are fitted to both the front and rear axles to minimize body roll during cornering.
Market Reception & Comparison
The GLE 350de has been generally well-received by automotive critics, who praise its fuel efficiency, smooth ride, and refined interior. Its all-electric range is a significant advantage, allowing for emission-free driving on shorter journeys. Compared to other GLE variants, the 350de offers a compelling combination of performance and economy. The diesel-electric powertrain provides better fuel economy than the gasoline-powered GLE 350, while offering similar levels of performance. However, the 350de is more expensive than the base GLE models. Compared to other plug-in hybrid SUVs, the GLE 350de stands out with its luxurious interior, comfortable ride, and strong diesel engine.
Legacy
The Mercedes-Benz GLE 350de represents a key step in the brand’s transition towards electrification. While still relatively new to the market, the OM 654 diesel engine has proven to be reliable and durable in other Mercedes-Benz models. The long-term reliability of the hybrid system remains to be seen, but Mercedes-Benz has extensive experience in developing and manufacturing hybrid powertrains. On the used car market, the GLE 350de is expected to hold its value well, particularly among buyers seeking a fuel-efficient and environmentally friendly luxury SUV. Its combination of performance, efficiency, and luxury should ensure its continued appeal for years to come.
