2019-2022 Mercedes-Benz GLC SUV (X253 facelift ) GLC 350e (315 Hp) Plug-in Hybrid 4MATIC 9G-TRONIC

The Mercedes-Benz GLC 350e (X253, facelift 2019) is a plug-in hybrid (PHEV) variant of the popular GLC SUV. Introduced in September 2019 and continuing through 2022, it represented Mercedes-Benz’s commitment to electrification within its luxury SUV lineup. Positioned as a mid-range offering within the GLC family, the 350e aimed to provide a balance between performance, efficiency, and environmental responsibility, appealing to buyers seeking a premium SUV experience with reduced emissions. It was primarily marketed in Europe and North America, aligning with growing demand for hybrid and electric vehicles in those regions.

Technical Specifications

Brand Mercedes-Benz
Model GLC
Generation GLC SUV (X253, facelift 2019)
Type GLC 350e (315 Hp) Plug-in Hybrid 4MATIC 9G-TRONIC
Start of production September, 2019
End of production 2022
Powertrain Architecture PHEV (Plug-in Hybrid Electric Vehicle)
Body type SUV
Seats 5
Doors 5
Fuel Type Petrol / electricity
Acceleration 0 – 100 km/h 5.7 sec
Acceleration 0 – 62 mph 5.7 sec
Acceleration 0 – 60 mph 5.6 sec
Maximum speed 210 km/h (130.49 mph) – Electronically limited
Emission standard ULEV70
Weight-to-power ratio 6.6 kg/Hp, 152.5 Hp/tonne
Weight-to-torque ratio 3 kg/Nm, 338.8 Nm/tonne
Gross battery capacity 13.5 kWh
Net (usable) battery capacity 9.5 kWh
Battery technology Lithium-ion (Li-Ion)
Battery location Under the trunk
All-electric range (WLTP) 39-43 km (24.23 – 26.72 mi)
All-electric range 46-49 km (28.58 – 30.45 mi)
Average Energy consumption 30 kWh/100 km (48.28 kWh/100 mi, 70 MPGe, 3.3 km/kWh, 2.1 mi/kWh)
Electric motor power 121 Hp
Electric motor Torque 441 Nm (325.26 lb.-ft.)
Electric motor location Between the combustion engine and the transmission
Electric motor type Synchronous
System power 315 Hp
System torque 700 Nm (516.29 lb.-ft.)
Power 208 Hp @ 5500 rpm
Power per litre 104.5 Hp/l
Torque 350 Nm @ 1200-4000 rpm (258.15 lb.-ft. @ 1200-4000 rpm)
Engine layout Front, Longitudinal
Engine Model/Code M 274.920
Engine displacement 1991 cm3 (121.5 cu. in.)
Number of cylinders 4
Engine configuration Inline
Cylinder Bore 83 mm (3.27 in.)
Piston Stroke 92 mm (3.62 in.)
Compression ratio 10.5:1
Number of valves per cylinder 4
Fuel injection system Direct injection
Engine aspiration Turbocharger, Intercooler
Valvetrain DOHC, CAMTRONIC
Engine oil capacity 6.5 l (6.87 US qt | 5.72 UK qt)
Coolant 16 l (16.91 US qt | 14.08 UK qt)
Kerb Weight 2066 kg (4554.75 lbs.)
Fuel tank capacity 66 l (17.44 US gal | 14.52 UK gal)
Length 4658 mm (183.39 in.)
Width 1890 mm (74.41 in.)
Width including mirrors 2096 mm (82.52 in.)
Height 1664 mm (65.51 in.)
Wheelbase 2873 mm (113.11 in.)
Front track 1613 mm (63.5 in.)
Front overhang 830 mm (32.68 in.)
Rear overhang 955 mm (37.6 in.)
Drag coefficient (Cd) 0.35
Minimum turning circle 11.8 m (38.71 ft.)
Drivetrain Architecture ICE and electric motor drive all four wheels, operating in full electric or mixed mode.
Drive wheel All wheel drive (4×4)
Number of gears 9
Gearbox type Automatic transmission G-TRONIC
Front suspension Independent multi-link suspension, Transverse stabilizer
Rear suspension Independent multi-link suspension, Transverse stabilizer
Front brakes Ventilated discs
Rear brakes Ventilated discs
Steering type Steering rack and pinion
Power steering Electric Steering
Tires size 235/60 R18
Wheel rims size 8J x 18

INTRODUCTION

The Mercedes-Benz GLC 350e, part of the X253 GLC SUV series (following the facelift in 2019), represents a significant step in the brand’s move towards electrified powertrains. Building upon the success of the initial GLC launch, the 350e combined a 2.0-liter turbocharged four-cylinder gasoline engine with an electric motor and a 13.5 kWh battery pack. This configuration allowed for a limited all-electric range and significantly improved fuel economy compared to the conventional gasoline-powered GLC models. The 350e was designed to appeal to environmentally conscious luxury buyers who didn’t want to compromise on performance or comfort.

Powertrain & Engine Architecture

At the heart of the GLC 350e lies the M 274.920 2.0-liter inline-four cylinder engine, equipped with a turbocharger and direct fuel injection. This engine produces 208 horsepower at 5500 rpm and 350 Nm (258.15 lb-ft) of torque between 1200 and 4000 rpm. The engine utilizes Mercedes-Benz’s CAMTRONIC variable valve timing system for optimized efficiency and performance. Integrated with the engine is a 121 horsepower electric motor, delivering 441 Nm (325.26 lb-ft) of torque. The electric motor is positioned between the engine and the 9G-TRONIC nine-speed automatic transmission. The 9G-TRONIC transmission is specifically calibrated for hybrid operation, providing smooth and efficient gear changes. The lithium-ion battery pack, with a gross capacity of 13.5 kWh and a usable capacity of 9.5 kWh, is located under the trunk floor, slightly reducing cargo space. The system’s combined output is 315 horsepower and 700 Nm (516.29 lb-ft) of torque.

Driving Characteristics

The GLC 350e offers a distinct driving experience compared to its gasoline-only counterparts. In electric mode, the vehicle provides near-silent acceleration and a surprisingly responsive feel, particularly in urban environments. The all-electric range, rated between 39-43 km (24.23 – 26.72 mi) under WLTP testing, is sufficient for many daily commutes. When the battery is depleted or when more power is demanded, the gasoline engine seamlessly kicks in, providing a combined output of 315 hp. The 9G-TRONIC transmission contributes to smooth transitions between electric and gasoline power. While the 350e isn’t as overtly sporty as some of the higher-performance GLC variants, it offers ample power for comfortable highway cruising and confident overtaking. The added weight of the battery pack does slightly impact handling agility compared to lighter models, but the well-tuned suspension maintains a composed ride.

Equipment & Trim Levels

The GLC 350e typically came well-equipped, reflecting its position as a premium model. Standard features included Mercedes-Benz’s MBUX infotainment system with a touchscreen display, navigation, Apple CarPlay and Android Auto compatibility, and a suite of driver-assistance technologies such as automatic emergency braking, lane-keeping assist, and adaptive cruise control. Interior upholstery was typically leather, with options for various colors and finishes. Available options included a panoramic sunroof, premium sound system, heated and ventilated front seats, and a head-up display. Trim levels were often differentiated by cosmetic enhancements, such as different wheel designs and exterior trim pieces.

Chassis & Braking

The GLC 350e utilizes a fully independent suspension system, with multi-link setups at both the front and rear axles. Transverse stabilizers are fitted to both ends to minimize body roll during cornering. The braking system consists of ventilated discs on all four wheels, providing ample stopping power. The added weight of the battery pack necessitated slightly stiffer spring rates and dampers to maintain handling balance. The steering is electrically assisted, offering precise and responsive control.

Market Reception & Comparison

The GLC 350e was generally well-received by automotive critics, who praised its fuel efficiency, comfortable ride, and refined interior. However, some reviewers noted the reduced cargo space due to the battery pack and the slightly higher price compared to the conventional gasoline models. Compared to the GLC 300 (the base model), the 350e offered significantly better fuel economy and the ability to drive in all-electric mode, but at a higher initial cost. Compared to the higher-performance GLC 43 AMG, the 350e prioritized efficiency and comfort over outright speed and handling. Reliability reports have been generally positive, with the hybrid powertrain proving to be relatively robust.

Legacy

The Mercedes-Benz GLC 350e played a crucial role in establishing Mercedes-Benz as a leader in the luxury plug-in hybrid segment. The powertrain technology and design principles introduced in the 350e paved the way for subsequent electrified models in the Mercedes-Benz lineup. On the used car market, the GLC 350e remains a desirable option for buyers seeking a fuel-efficient and environmentally friendly luxury SUV. The longevity of the battery pack is a key consideration for potential buyers, but well-maintained examples continue to offer a compelling combination of performance, comfort, and efficiency.

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