2017-2018 Mercedes-Benz GLA (X156 facelift ) GLA 220d (177 Hp) 7G-DCT

The Mercedes-Benz GLA 220d, specifically the facelift model produced from January 2017 to May 2018 (designated X156), represented a compelling entry point into the compact luxury SUV segment. Positioned as a mid-range offering within the GLA lineup, it bridged the gap between the lower-powered GLA 200d and the more performance-oriented GLA 250. This variant combined a 2.1-liter turbocharged diesel engine with the 7G-DCT dual-clutch transmission, offering a balance of fuel efficiency, respectable performance, and Mercedes-Benz refinement. The GLA, as a whole, was Mercedes-Benz’s attempt to capture a younger demographic with a more accessible and stylish SUV, leveraging the robust mechanicals of the A-Class (W176) and B-Class (W246) platforms.

Technical Specifications

Brand Mercedes-Benz
Model GLA
Generation GLA (X156, facelift 2017)
Type (Engine) GLA 220d (177 Hp) 7G-DCT
Start of production January, 2017
End of production May, 2018
Powertrain Architecture Internal Combustion engine
Body type SUV
Seats 5
Doors 5
Fuel consumption (economy) – urban (NEDC) 5-5.2 l/100 km (47 – 45.2 US mpg, 56.5 – 54.3 UK mpg, 20 – 19.2 km/l)
Fuel consumption (economy) – extra urban (NEDC) 3.7-3.9 l/100 km (63.6 – 60.3 US mpg, 76.3 – 72.4 UK mpg, 27 – 25.6 km/l)
Fuel consumption (economy) – combined (NEDC) 4.2-4.4 l/100 km (56 – 53.5 US mpg, 67.3 – 64.2 UK mpg, 23.8 – 22.7 km/l)
CO2 emissions (NEDC) 110-115 g/km
Fuel Type Diesel
Acceleration 0 – 100 km/h 7.7 sec
Acceleration 0 – 62 mph 7.7 sec
Acceleration 0 – 60 mph 7.3 sec
Maximum speed 223 km/h (138.57 mph)
Emission standard Euro 6
Weight-to-power ratio 8.3 kg/Hp, 120.8 Hp/tonne
Weight-to-torque ratio 4.2 kg/Nm, 238.9 Nm/tonne
Power 177 Hp @ 3600-3800 rpm
Power per litre 82.6 Hp/l
Torque 350 Nm @ 1400-3400 rpm (258.15 lb.-ft. @ 1400-3400 rpm)
Engine layout Front, Transverse
Engine Model/Code OM 651.930
Engine displacement 2143 cm3 (130.77 cu. in.)
Number of cylinders 4
Engine configuration Inline
Cylinder Bore 83 mm (3.27 in.)
Piston Stroke 99 mm (3.9 in.)
Compression ratio 16.2:1
Number of valves per cylinder 4
Fuel injection system Diesel Commonrail
Engine aspiration Turbocharger, Intercooler
Valvetrain DOHC
Engine oil capacity 6.5 l (6.87 US qt | 5.72 UK qt)
Kerb Weight 1465 kg (3229.77 lbs.)
Max. weight 2035 kg (4486.41 lbs.)
Max load 570 kg (1256.63 lbs.)
Trunk (boot) space – minimum 421 l (14.87 cu. ft.)
Trunk (boot) space – maximum 1235 l (43.61 cu. ft.)
Fuel tank capacity 50 l (13.21 US gal | 11 UK gal)
Max. roof load 75 kg (165.35 lbs.)
Permitted trailer load with brakes (12%) 1500 kg (3306.93 lbs.)
Permitted trailer load without brakes 750 kg (1653.47 lbs.)
Permitted towbar download 75 kg (165.35 lbs.)
Length 4424 mm (174.17 in.)
Width 1804 mm (71.02 in.)
Width including mirrors 2022 mm (79.61 in.)
Height 1494 mm (58.82 in.)
Wheelbase 2699 mm (106.26 in.)
Front track 1569 mm (61.77 in.)
Rear (Back) track 1560 mm (61.42 in.)
Front overhang 913 mm (35.94 in.)
Rear overhang 812 mm (31.97 in.)
Drag coefficient (Cd) 0.30
Minimum turning circle (turning diameter) 11.84 m (38.85 ft.)
Approach angle 15.8°
Departure angle 21.5°
Ramp-over (brakeover) angle 13.3°
Drivetrain Architecture The Internal combustion engine (ICE) drives the front wheels of the vehicle.
Drive wheel Front wheel drive
Number of gears and type of gearbox 7 gears, automatic transmission G-DCT
Front suspension Independent, type McPherson with coil spring and anti-roll bar
Rear suspension Wishbone, Transverse stabilizer, Trailing arm
Front brakes Ventilated discs
Rear brakes Disc
Assisting systems ABS (Anti-lock braking system)
Steering type Steering rack and pinion
Power steering Electric Steering
Tires size 215/60 R17; 215/55 R18; 235/50 R18; 235/45 R19
Wheel rims size 6.5J x 17; 6.5J x 18; 7J x 18; 8J x 19

INTRODUCTION

The Mercedes-Benz GLA 220d (X156 facelift) debuted in January 2017 as part of a mid-cycle refresh for the first-generation GLA. Built on the MFA (Modular Front-wheel drive Architecture) platform – shared with the A-Class and B-Class – the GLA aimed to bring the Mercedes-Benz experience to a more compact and accessible package. The 220d variant, powered by the OM651.930 engine and paired with the 7G-DCT transmission, was positioned as a sweet spot in the range, offering a good balance of performance, economy, and refinement. Production of this specific configuration continued until May 2018, when the X156 was superseded by the second-generation GLA (H247).

Powertrain & Engine Architecture

At the heart of the GLA 220d lies the OM651.930 2.1-liter inline-four cylinder diesel engine. This engine, a mainstay in many Mercedes-Benz models, is known for its durability and efficiency. It features a common-rail direct injection system, delivering fuel at extremely high pressure for optimized combustion. A turbocharger with an intercooler further enhances power output. The engine produces 177 horsepower at 3600-3800 rpm and 350 Nm (258 lb-ft) of torque between 1400 and 3400 rpm. The 7G-DCT (7-speed Dual Clutch Transmission) is a crucial component of this powertrain. This transmission offers quick and smooth gear changes, contributing to both performance and fuel economy. It operates with two separate clutches, one for odd-numbered gears and one for even-numbered gears, allowing for pre-selection of the next gear for seamless shifts. The transmission also includes a manual shift mode for driver control.

Driving Characteristics

The GLA 220d 7G-DCT delivers a comfortable and refined driving experience. While not overtly sporty, the engine provides sufficient power for everyday driving and highway cruising. The 7.7-second 0-100 km/h (0-62 mph) acceleration time is respectable for a compact diesel SUV. The 7G-DCT transmission contributes to smooth acceleration and responsive gear changes. Compared to the lower-powered GLA 200d, the 220d offers noticeably more punch, particularly when overtaking. However, it doesn’t match the performance of the GLA 250, which boasts a more powerful gasoline engine. The gear ratios in the 7G-DCT are well-chosen for both fuel efficiency and drivability, providing a good balance between low-end torque and high-speed cruising ability. The front-wheel-drive configuration provides adequate traction in most conditions, although it can exhibit some torque steer under hard acceleration.

Equipment & Trim Levels

The GLA 220d typically came well-equipped, reflecting its position as a mid-range model. Standard features often included automatic climate control, a multimedia system with a central display screen, Bluetooth connectivity, and a suite of safety features such as ABS, ESP, and multiple airbags. Interior upholstery was typically Artico leatherette (synthetic leather), with options for genuine leather upgrades. Common optional extras included a panoramic sunroof, navigation system, upgraded sound system, parking assist, and various driver assistance packages. Trim levels varied slightly depending on the market, but generally offered progressive enhancements in terms of interior materials, exterior styling, and technology features.

Chassis & Braking

The GLA 220d utilizes a McPherson strut front suspension and a multi-link rear suspension. This setup provides a good balance of ride comfort and handling. The suspension is tuned to prioritize comfort, but still offers reasonable body control in corners. Braking duties are handled by ventilated discs at the front and solid discs at the rear. ABS (Anti-lock Braking System) and ESP (Electronic Stability Program) are standard features, enhancing safety and stability. The steering is electrically assisted, providing a light and precise feel. The GLA 220d’s weight of approximately 1465 kg (3229.77 lbs) is relatively low for its class, contributing to its agility and fuel efficiency.

Market Reception & Comparison

The GLA 220d was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined interior. The 7G-DCT transmission was also a highlight, offering smooth and responsive gear changes. Compared to the GLA 200d, the 220d offered a significant performance upgrade without a substantial increase in fuel consumption. Against the GLA 250, the 220d offered better fuel economy and lower running costs, but at the expense of outright performance. The GLA 220d competed with other compact luxury SUVs such as the Audi Q3, BMW X1, and Volvo XC40.

Legacy

The Mercedes-Benz GLA 220d (X156 facelift) has proven to be a reliable and durable vehicle. The OM651.930 engine is known for its longevity, and the 7G-DCT transmission, while complex, has generally proven to be robust when properly maintained. In the used car market, the GLA 220d remains a popular choice, offering a good balance of luxury, practicality, and fuel efficiency. However, potential buyers should be aware of the importance of regular maintenance, particularly regarding the diesel particulate filter (DPF) and the dual-clutch transmission. Overall, the GLA 220d represents a well-rounded and capable compact SUV that continues to offer a compelling ownership experience.

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