The Mercedes-Benz CLK 230 Kompressor, produced between April 1997 and August 1999, was a key variant within the C208 CLK generation. Positioned as a mid-range offering, it bridged the gap between the entry-level CLK 200 and the more potent CLK 320. The C208 CLK represented Mercedes-Benz’s return to the coupe market after a hiatus, aiming to blend elegant styling with modern technology and performance. This model was primarily marketed in Europe and North America, offering a sophisticated alternative to rivals like the BMW 3 Series Coupe and Audi A4 Coupe.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | CLK |
| Generation | CLK (C208) |
| Type (Engine) | CLK 230 Kompressor (193 Hp) |
| Start of production | April, 1997 |
| End of production | August, 1999 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (economy) – urban (NEDC) | 14.1 l/100 km (16.7 US mpg, 20 UK mpg, 7.1 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 7.3 l/100 km (32.2 US mpg, 38.7 UK mpg, 13.7 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 9.8 l/100 km (24 US mpg, 28.8 UK mpg, 10.2 km/l) |
| CO2 emissions (NEDC) | 233 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.4 sec |
| Acceleration 0 – 62 mph | 8.4 sec |
| Acceleration 0 – 60 mph | 8 sec |
| Maximum speed | 234 km/h (145.4 mph) |
| Emission standard | Euro 3 |
| Weight-to-power ratio | 7 kg/Hp, 143 Hp/tonne |
| Weight-to-torque ratio | 4.8 kg/Nm, 207.4 Nm/tonne |
| Power | 193 Hp @ 5300 rpm |
| Power per litre | 84.1 Hp/l |
| Torque | 280 Nm @ 2500-4800 rpm (206.52 lb.-ft. @ 2500-4800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 111.975 |
| Engine displacement | 2295 cm3 (140.05 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 90.9 mm (3.58 in.) |
| Piston Stroke | 88.4 mm (3.48 in.) |
| Compression ratio | 8.8:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Supercharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5.5 l (5.81 US qt | 4.84 UK qt) |
| Coolant | 8 l (8.45 US qt | 7.04 UK qt) |
| Kerb Weight | 1350 kg (2976.24 lbs.) |
| Max. weight | 1850 kg (4078.55 lbs.) |
| Max load | 500 kg (1102.31 lbs.) |
| Trunk (boot) space – minimum | 420 l (14.83 cu. ft.) |
| Fuel tank capacity | 62 l (16.38 US gal | 13.64 UK gal) |
| Permitted trailer load with brakes (12%) | 1500 kg (3306.93 lbs.) |
| Permitted trailer load without brakes | 715 kg (1576.31 lbs.) |
| Length | 4567 mm (179.8 in.) |
| Width | 1722 mm (67.8 in.) |
| Width including mirrors | 1960 mm (77.17 in.) |
| Height | 1371 mm (53.98 in.) |
| Wheelbase | 2690 mm (105.91 in.) |
| Front track | 1505 mm (59.25 in.) |
| Rear (Back) track | 1474 mm (58.03 in.) |
| Front overhang | 860 mm (33.86 in.) |
| Rear overhang | 1017 mm (40.04 in.) |
| Drag coefficient (Cd) | 0.31 |
| Minimum turning circle (turning diameter) | 10.7 m (35.1 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, manual transmission |
| Front suspension | Coil spring, Double wishbone, Transverse stabilizer |
| Rear suspension | Independent multi-link suspension, Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic Steering |
| Tires size | 205/55 R 16 |
| Wheel rims size | 7 J x 16 |
Powertrain & Engine Architecture
The CLK 230 Kompressor was powered by the M111.975 2.3-liter inline-four cylinder engine. This engine was notable for its mechanically driven supercharger (Kompressor in Mercedes terminology), which provided increased torque and responsiveness compared to naturally aspirated engines of similar displacement. The supercharger, a Lysholm-type unit, was electromagnetically controlled and engaged at lower engine speeds to boost performance. Fuel delivery was handled by a multi-port fuel injection system. The engine featured a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, contributing to its efficient breathing and power output. The engine produced 193 horsepower at 5300 rpm and 280 Nm (206.52 lb-ft) of torque between 2500 and 4800 rpm. The standard transmission was a 5-speed manual, although a 5-speed automatic transmission was also available, impacting acceleration slightly.
Driving Characteristics
The CLK 230 Kompressor offered a balanced driving experience. The supercharger provided a noticeable boost in acceleration, making it feel quicker than its displacement might suggest. While not a sports car, it delivered respectable performance, achieving 0-60 mph in around 8 seconds and a top speed of 145.4 mph. The manual transmission provided a more engaging driving experience, while the automatic offered convenience. Compared to the CLK 200, the 230 Kompressor felt significantly more powerful, and while it didn’t match the outright performance of the CLK 320, it offered a compelling blend of performance and fuel economy. The rear-wheel drive configuration provided a traditional driving feel, although it lacked the all-weather capability of all-wheel-drive systems found in some competitors.
Equipment & Trim Levels
The CLK 230 Kompressor typically came equipped with features such as power windows, power locks, and air conditioning. Interior upholstery was generally cloth, with leather options available as upgrades. Standard dashboard configuration included wood trim and analog gauges. Optional extras included a sunroof, upgraded audio systems, automatic climate control, and heated seats. The trim level could be enhanced with various packages, offering a more luxurious or sporty experience. The base model focused on providing a comfortable and well-equipped coupe, while optional packages allowed buyers to tailor the car to their preferences.
Chassis & Braking
The CLK 230 Kompressor utilized a coil spring, double wishbone suspension setup at the front, with an independent multi-link suspension at the rear. This configuration aimed to provide a comfortable ride while maintaining good handling characteristics. Front brakes were ventilated discs, while rear brakes were solid discs. Anti-lock Braking System (ABS) was standard. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering. The suspension tuning was geared towards comfort, but the chassis provided a stable and predictable platform for spirited driving.
Market Reception & Comparison
The CLK 230 Kompressor was generally well-received by automotive critics. It was praised for its stylish design, comfortable interior, and the responsive performance provided by the supercharged engine. Fuel economy was considered reasonable for a coupe of its class, averaging around 24 mpg combined. Compared to the naturally aspirated CLK 200, the 230 Kompressor offered a significant performance upgrade without the higher price tag of the CLK 320. Reliability was generally good, although some owners reported issues with the supercharger and its associated components over the long term.
Legacy
The M111 engine, including the 2.3-liter variant found in the CLK 230 Kompressor, proved to be a durable and reliable powerplant when properly maintained. Today, the C208 CLK 230 Kompressor represents an affordable entry point into the Mercedes-Benz coupe world. While not as sought-after as some of the higher-performance variants, it offers a stylish and comfortable driving experience. Common issues in the used car market include wear and tear on the supercharger, potential oil leaks, and age-related deterioration of rubber components. However, parts availability is generally good, and the car remains a popular choice for enthusiasts seeking a classic Mercedes-Benz coupe.
