The Mercedes-Benz GLK 200 CDI BlueEFFICIENCY, produced from 2010 to 2011, 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 played a significant role in expanding the GLK’s appeal, offering a more economical alternative to the higher-powered gasoline versions. It was a key component of Mercedes-Benz’s strategy to offer a diverse lineup within the burgeoning compact SUV segment.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | GLK |
| Generation | GLK (X204) |
| Type (Engine) | GLK 200 CDI BlueEFFICIENCY (143 Hp) 7G-TRONIC |
| Start of production | 2010 |
| End of production | 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban (NEDC) | 8-8.4 l/100 km (29.4 – 28 US mpg, 35.3 – 33.6 UK mpg, 12.5 – 11.9 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 5.3-5.6 l/100 km (44.4 – 42 US mpg, 53.3 – 50.4 UK mpg, 18.9 – 17.9 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 6.3-6.7 l/100 km (37.3 – 35.1 US mpg, 44.8 – 42.2 UK mpg, 15.9 – 14.9 km/l) |
| CO2 emissions (NEDC) | 164-174 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 | 12.1 kg/Hp, 82.4 Hp/tonne |
| Weight-to-torque ratio | 5 kg/Nm, 201.7 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 | 1735 kg (3825.02 lbs.) |
| Max. weight | 2400 kg (5291.09 lbs.) |
| Max load | 665 kg (1466.07 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 (Back) 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 (turning diameter) | 11.5 m (37.73 ft.) |
| Approach angle | 23° |
| Departure angle | 25° |
| Ramp-over (brakeover) angle | 19° |
| Climb angle | 35° |
| Wading depth | 300 mm (11.81 in.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission G-TRONIC |
| 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 |
| Tires size | Front wheel tires: 235/60 R17; 235/50 R19; 235/45 R20Rear wheel tires: 235/60 R17; 255/55 R17; 235/50 R19; 255/45 R19; 255/40 R20 |
| Wheel rims size | Front wheel rims: 7.5J x 17; 7.5J x 19; 8.5J x 20Rear 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 2010 and continuing through 2011, was a key variant within the first generation (X204) GLK-Class. This compact SUV was designed to appeal to European consumers seeking a premium vehicle with enhanced fuel economy. The “BlueEFFICIENCY” designation signified Mercedes-Benz’s commitment to reducing emissions and improving fuel consumption through various technologies. The GLK 200 CDI occupied the entry-level position in the GLK lineup, offering a more accessible price point compared to the more powerful gasoline-powered models like the GLK 300. It was built on the W204 C-Class platform, sharing many components and technologies.
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, known for its durability and efficiency. It features a common rail direct fuel injection system, delivering fuel at extremely high pressure for optimized combustion. The engine also incorporates a variable geometry turbocharger (VGT) and an intercooler to boost power and torque. The valvetrain utilizes a double overhead camshaft (DOHC) design with four valves per cylinder, enhancing breathing and overall performance. Paired with this engine is the 7G-TRONIC seven-speed automatic transmission, a staple in Mercedes-Benz vehicles. This transmission is known for its smooth shifting and ability to optimize engine speed for both performance and fuel economy. The 7G-TRONIC 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 a respectable, though not particularly sporty, driving experience. Acceleration from 0 to 100 km/h (0-62 mph) took approximately 10.8 seconds. The 7G-TRONIC transmission was well-matched to the engine, providing smooth and predictable gear changes. While not as quick as the higher-powered GLK variants, the 200 CDI offered ample torque for everyday driving and highway cruising. The gear ratios were optimized for fuel efficiency, meaning the engine often operated at lower RPMs during normal driving conditions. Compared to the manual transmission options available on other GLK models, the 7G-TRONIC prioritized comfort and ease of use over outright performance. The rear-wheel drive configuration contributed to a balanced feel, although it lacked the all-weather capability of the 4MATIC all-wheel drive system offered on other GLK trims.
Equipment & Trim Levels
The GLK 200 CDI BlueEFFICIENCY came standard with a reasonable level of equipment, reflecting its position as an entry-level luxury SUV. Standard features typically included automatic climate control, a multi-function steering wheel, power windows and mirrors, and a basic audio system. Interior upholstery was generally cloth, although leather options were available as upgrades. The dashboard layout was typical of Mercedes-Benz at the time, with a focus on functionality and a premium feel. Optional extras included a sunroof, navigation system, upgraded audio system, parking sensors, and leather upholstery. The “BlueEFFICIENCY” package itself included features designed to improve fuel economy, such as optimized aerodynamics and low-rolling resistance tires.
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 effectively. Braking duties were handled by ventilated discs at the front and solid discs at the rear. The vehicle was equipped with ABS (Anti-lock Braking System) as standard, enhancing safety and control during emergency braking situations. 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 comfortable ride. However, some reviewers noted that its performance was not as exhilarating as that of the more powerful GLK models. Compared to the GLK 300, the 200 CDI offered significantly better fuel economy, but at the expense of acceleration and overall power. The 200 CDI also provided a more affordable entry point into the GLK range, making it an attractive option for budget-conscious buyers. Its fuel economy figures were competitive with other diesel-powered SUVs in its class, and its CO2 emissions were relatively low, making it a desirable choice in Europe where emissions regulations are stringent.
Legacy
The OM651 engine family, used in the GLK 200 CDI BlueEFFICIENCY, has proven to be remarkably durable and reliable over the long term. With proper maintenance, these engines can easily exceed 200,000 kilometers (124,000 miles) without major issues. The 7G-TRONIC transmission is also known for its reliability, although regular fluid changes are essential to ensure smooth operation. In the used car market, the GLK 200 CDI BlueEFFICIENCY remains a popular choice for buyers seeking a practical and fuel-efficient luxury SUV. Its relatively low running costs and comfortable ride continue to appeal to a wide range of drivers. While newer SUVs offer more advanced technology and features, the GLK 200 CDI BlueEFFICIENCY represents a solid and dependable option for those seeking a well-built and economical vehicle.
