Technical Specifications
| Brand | Mercedes-Benz |
| Model | CLK |
| Generation | CLK (C209) |
| Type (Engine) | CLK 240 (170 Hp) 5G-TRONIC |
| Start of production | February, 2002 |
| End of production | May, 2005 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (economy) – urban (NEDC) | 15.4 l/100 km (15.3 US mpg, 18.3 UK mpg, 6.5 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 7.5 l/100 km (31.4 US mpg, 37.7 UK mpg, 13.3 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 10.4 l/100 km (22.6 US mpg, 27.2 UK mpg, 9.6 km/l) |
| CO2 emissions (NEDC) | 250 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 9.5 sec |
| Acceleration 0 – 62 mph | 9.5 sec |
| Acceleration 0 – 60 mph | 9 sec |
| Maximum speed | 234 km/h (145.4 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 8.8 kg/Hp, 113.3 Hp/tonne |
| Weight-to-torque ratio | 6.3 kg/Nm, 160 Nm/tonne |
| Power | 170 Hp @ 5500 rpm |
| Power per litre | 65.5 Hp/l |
| Torque | 240 Nm @ 4500 rpm (177.01 lb.-ft. @ 4500 rpm) |
| Maximum engine speed | 6000 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 112.912 |
| Engine displacement | 2597 cm3 (158.48 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 89.9 mm (3.54 in.) |
| Piston Stroke | 68.2 mm (2.69 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 3 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 10.5 l (11.1 US qt | 9.24 UK qt) |
| Kerb Weight | 1500 kg (3306.93 lbs.) |
| Max. weight | 2030 kg (4475.38 lbs.) |
| Max load | 530 kg (1168.45 lbs.) |
| Trunk (boot) space – minimum | 435 l (15.36 cu. ft.) |
| Fuel tank capacity | 62 l (16.38 US gal | 13.64 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 1500 kg (3306.93 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Length | 4638 mm (182.6 in.) |
| Width | 1740 mm (68.5 in.) |
| Width including mirrors | 1991 mm (78.39 in.) |
| Height | 1413 mm (55.63 in.) |
| Wheelbase | 2715 mm (106.89 in.) |
| Front track | 1493 mm (58.78 in.) |
| Rear (Back) track | 1474 mm (58.03 in.) |
| Front overhang | 840 mm (33.07 in.) |
| Rear overhang | 1083 mm (42.64 in.) |
| Drag coefficient (Cd) | 0.28 |
| Minimum turning circle (turning diameter) | 10.76 m (35.3 ft.) |
| 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 | 5 gears, automatic transmission |
| Front suspension | Independent type McPherson, Transverse stabilizer |
| Rear suspension | Independent multi-link suspension, Transverse stabilizer |
| Front brakes | Ventilated discs, 300×28 mm |
| Rear brakes | Disc, 290×10 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | Front wheel tires: 205/55 R16 Rear wheel tires: 225/50 R16 |
| Wheel rims size | Front wheel rims: 7J x 16 Rear wheel rims: 8J x 16 |
The Mercedes-Benz CLK 240, produced from February 2002 to May 2005, was a significant variant within the C209 CLK-Class range. Positioned as a mid-range offering, it aimed to balance performance and luxury within the coupe body style. The C209 generation marked a departure for the CLK, moving away from its shared platform with the C-Class and embracing a more distinctive design and improved refinement. The CLK 240, with its 2.6-liter V6 engine and 5G-TRONIC automatic transmission, proved a popular choice for buyers seeking a comfortable and capable grand tourer.
Powertrain & Engine Architecture
The CLK 240 was powered by the M112.912 2.6-liter V6 engine. This engine, a naturally aspirated design, featured a single overhead camshaft (SOHC) per cylinder bank and three valves per cylinder (two intake, one exhaust). The M112 engine family was well-regarded for its smooth operation and relatively high specific output. Fuel delivery was handled by a multi-port fuel injection system, ensuring precise fuel metering for optimal combustion. The engine produced 170 horsepower at 5500 rpm and 240 Nm (177 lb-ft) of torque at 4500 rpm. Paired with the engine was the 5G-TRONIC automatic transmission, a five-speed unit that offered smooth and responsive shifting. This transmission was a substantial improvement over older automatic designs, providing a more refined driving experience.
Driving Characteristics
The CLK 240 with the 5G-TRONIC transmission offered a comfortable and relaxed driving experience. While not overtly sporty, the engine provided adequate power for everyday driving and highway cruising. Acceleration from 0 to 60 mph took approximately 9 seconds, and the car had a top speed of 145 mph. The automatic transmission was programmed for smoothness rather than aggressive shifts, prioritizing comfort over outright performance. Compared to the more powerful CLK 320 or the sportier AMG variants, the CLK 240 felt less urgent in its acceleration. However, it offered a more fuel-efficient and affordable entry point into the CLK range. The gear ratios were optimized for mid-range torque, making it easy to maintain speed on the highway.
Equipment & Trim Levels
The CLK 240 typically came standard with features such as automatic climate control, power windows and locks, a multi-function steering wheel, and a premium audio system. Interior upholstery was generally cloth or leatherette, with leather being an optional upgrade. Common optional extras included a sunroof, heated seats, and a navigation system. The dashboard layout was typical of Mercedes-Benz at the time, with a focus on elegant design and user-friendly controls. Trim levels were relatively simple, with most options being added individually rather than bundled into specific packages.
Chassis & Braking
The CLK 240 featured an independent suspension system all around, with McPherson struts at the front and a multi-link setup at the rear. This provided a comfortable ride and good handling characteristics. Stabilizer bars were fitted to both axles to reduce body roll during cornering. The braking system consisted of ventilated discs at the front and solid discs at the rear, with ABS (Anti-lock Braking System) as standard. The suspension was tuned for comfort, prioritizing a smooth ride over aggressive handling. The chassis was designed to provide a stable and predictable driving experience.
Market Reception & Comparison
The CLK 240 was generally well-received by automotive critics as a comfortable and refined grand tourer. It was praised for its smooth engine, comfortable ride, and well-appointed interior. However, some critics noted that it lacked the sporty character of its more powerful siblings. Compared to the CLK 320, the 240 offered better fuel economy but less performance. The 240 also represented a more affordable entry point into the CLK range, making it attractive to buyers who prioritized value and comfort over outright speed. Fuel economy figures averaged around 22.6 mpg combined, which was respectable for a V6-powered coupe of its era.
Legacy
The M112 engine family, including the 2.6-liter version found in the CLK 240, is generally considered to be reliable and durable. With proper maintenance, these engines can last for many years. The 5G-TRONIC transmission is also known for its longevity, although regular fluid changes are essential. In the used car market today, the CLK 240 represents a relatively affordable way to experience Mercedes-Benz luxury and refinement. While it may not be the fastest or most exciting CLK variant, it offers a comfortable and reliable driving experience, making it a popular choice for enthusiasts and everyday drivers alike. Parts availability is generally good, and maintenance costs are reasonable compared to more complex or high-performance models.
