The Mercedes-Benz GLK 200 CDI BlueEFFICIENCY, produced from 2011 to 2012, was a diesel-powered variant of the X204 GLK-Class compact luxury SUV. Positioned as an entry-level offering within the GLK range, it aimed to provide a balance of fuel efficiency and practicality for European buyers. This model utilized a 2.1-liter four-cylinder diesel engine paired with Mercedes-Benz’s 7G-TRONIC PLUS seven-speed automatic transmission, offering a more accessible price point compared to the more powerful GLK 280 and GLK 350 models. It was primarily sold in the European market, where diesel engines held a significant share of the SUV segment.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | GLK |
| Generation | GLK (X204) |
| Type | GLK 200 CDI BlueEFFICIENCY (143 Hp) 7G-TRONIC PLUS |
| Start of production | 2011 |
| End of production | 2012 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 6.4-6.8 l/100 km (36.8 – 34.6 US mpg, 44.1 – 41.5 UK mpg, 15.6 – 14.7 km/l) |
| Fuel consumption (extra urban) | 5.1-5.5 l/100 km (46.1 – 42.8 US mpg, 55.4 – 51.4 UK mpg, 19.6 – 18.2 km/l) |
| Fuel consumption (combined) | 5.6-6 l/100 km (42 – 39.2 US mpg, 50.4 – 47.1 UK mpg, 17.9 – 16.7 km/l) |
| CO2 emissions | 145-156 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 10.8 sec |
| Acceleration 0 – 62 mph | 10.8 sec |
| Acceleration 0 – 60 mph | 10.3 sec |
| Maximum speed | 190 km/h (118.06 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 12.4 kg/Hp, 80.8 Hp/tonne |
| Weight-to-torque ratio | 5.1 kg/Nm, 197.7 Nm/tonne |
| Power | 143 Hp @ 3200 rpm |
| Power per litre | 66.7 Hp/l |
| Torque | 350 Nm @ 1200-2800 rpm (258.15 lb.-ft. @ 1200-2800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 651.916 |
| 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 | 1770 kg (3902.18 lbs.) |
| Max. weight | 2425 kg (5346.21 lbs.) |
| Max load | 655 kg (1444.03 lbs.) |
| Trunk (boot) space – minimum | 450 l (15.89 cu. ft.) |
| Trunk (boot) space – maximum | 1550 l (54.74 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal | 12.98 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (12%) | 2000 kg (4409.25 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Length | 4525 mm (178.15 in.) |
| Width | 1840 mm (72.44 in.) |
| Width including mirrors | 2016 mm (79.37 in.) |
| Height | 1689 mm (66.5 in.) |
| Wheelbase | 2755 mm (108.46 in.) |
| Front track | 1567 mm (61.69 in.) |
| Rear track | 1588 mm (62.52 in.) |
| Front overhang | 813 mm (32.01 in.) |
| Rear overhang | 957 mm (37.68 in.) |
| Ride height (ground clearance) | 201 mm (7.91 in.) |
| Drag coefficient (Cd) | 0.34 |
| Minimum turning circle | 11.5 m (37.73 ft.) |
| Approach angle | 23° |
| Departure angle | 25° |
| Ramp-over angle | 19° |
| Climb angle | 35° |
| Wading depth | 300 mm (11.81 in.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission G-TRONIC PLUS |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Front tires | 235/60 R17; 235/50 R19; 235/45 R20 |
| Rear tires | 235/60 R17; 255/55 R17; 235/50 R19; 255/45 R19; 255/40 R20 |
| Front wheel rims | 7.5J x 17; 7.5J x 19; 8.5J x 20 |
| Rear wheel rims | 7.5J x 17; 8J x 17; 7.5J x 19; 8.5J x 19; 9.5J x 20 |
INTRODUCTION
The Mercedes-Benz GLK 200 CDI BlueEFFICIENCY, launched in 2011 and continuing through 2012, represented a key component of the X204 GLK-Class lineup. Built on the W204 C-Class platform (internally designated 204), the GLK aimed to bring a more compact and accessible luxury SUV option to the Mercedes-Benz range. The “BlueEFFICIENCY” designation signified Mercedes-Benz’s efforts to improve fuel economy and reduce emissions through various technologies. This particular variant, the 200 CDI, was designed to appeal to buyers prioritizing efficiency and lower running costs, particularly in European markets where diesel fuel was prevalent and often incentivized.
Powertrain & Engine Architecture
At the heart of the GLK 200 CDI BlueEFFICIENCY lies the OM651.916 2.1-liter inline four-cylinder diesel engine. This engine is a highly refined unit, featuring common-rail direct injection and a variable geometry turbocharger with an intercooler. The common-rail system, operating at extremely high pressures, ensures precise fuel delivery and optimized combustion. The engine also incorporates a diesel particulate filter (DPF) to minimize harmful emissions, complying with Euro 5 standards. The DOHC valvetrain, with four valves per cylinder, further enhances breathing and efficiency. Paired with this engine is the 7G-TRONIC PLUS seven-speed automatic transmission. This transmission is known for its smooth shifting and wide gear ratios, contributing to both fuel economy and drivability. The transmission features a torque converter lock-up clutch that engages at higher speeds to reduce slippage and improve efficiency.
Driving Characteristics
The GLK 200 CDI BlueEFFICIENCY, with its 143 horsepower and 350 Nm (258 lb-ft) of torque, offered adequate, though not exhilarating, performance. Acceleration from 0 to 100 km/h (0-62 mph) took approximately 10.8 seconds. The 7G-TRONIC PLUS transmission was programmed for comfort and efficiency, with gear changes generally smooth and unobtrusive. Compared to the more powerful GLK 280 or GLK 350 variants, the 200 CDI felt noticeably slower, particularly during overtaking maneuvers. However, the readily available torque from the diesel engine provided sufficient pulling power for everyday driving and cruising on highways. The automatic transmission’s gear ratios were optimized for fuel economy, meaning the engine often operated at lower RPMs during steady-state cruising. The rear-wheel drive configuration contributed to a balanced feel, though it lacked the all-weather capability of the optional 4MATIC all-wheel drive system.
Equipment & Trim Levels
The GLK 200 CDI BlueEFFICIENCY typically came equipped with a respectable level of standard features. These included automatic climate control, a multi-function steering wheel, power windows and mirrors, and a basic audio system. Interior upholstery was generally cloth, though leather options were available as upgrades. Standard safety features included ABS, ESP (Electronic Stability Program), and multiple airbags. Optional extras included a sunroof, navigation system, upgraded audio systems, parking sensors, and heated seats. Trim levels were relatively simple, with most customization options available as individual add-ons rather than distinct packages. The overall interior design reflected Mercedes-Benz’s commitment to quality and refinement, with a focus on comfort and ergonomics.
Chassis & Braking
The GLK 200 CDI BlueEFFICIENCY utilized an independent suspension system on both the front and rear axles. The front suspension employed a McPherson strut design with coil springs and an anti-roll bar, while the rear featured a multi-link setup, also with coil springs and a stabilizer bar. This suspension configuration provided a comfortable ride quality, absorbing bumps and imperfections in the road surface effectively. Braking duties were handled by ventilated discs at the front and solid discs at the rear. ABS (Anti-lock Braking System) was standard, ensuring stable braking performance even in challenging conditions. The hydraulic power steering provided a responsive and precise steering feel.
Market Reception & Comparison
The GLK 200 CDI BlueEFFICIENCY was generally well-received by automotive critics, particularly for its fuel efficiency and practicality. Reviewers praised the comfortable ride, refined interior, and the smooth operation of the 7G-TRONIC PLUS transmission. However, some criticized the engine’s lack of outright power compared to its gasoline-powered siblings. Compared to the GLK 280, the 200 CDI offered significantly better fuel economy but at the expense of performance. The GLK 280, with its larger engine, provided a more engaging driving experience. In terms of reliability, the OM651 diesel engine proved to be a robust and durable unit, though maintenance of the DPF and common-rail system required careful attention.
Legacy
The Mercedes-Benz GLK 200 CDI BlueEFFICIENCY remains a relatively common sight on the used car market in Europe. The OM651 diesel engine is known for its longevity, and well-maintained examples can still provide reliable service. However, potential buyers should be aware of the potential costs associated with maintaining the DPF and common-rail injection system. The GLK’s compact size and practical interior continue to appeal to buyers seeking a versatile and fuel-efficient luxury SUV. While superseded by the GLC-Class, the X204 GLK, and particularly the 200 CDI variant, represents a solid and dependable option for those seeking a comfortable and economical entry into the Mercedes-Benz brand.
