Introduction to the Mercedes-Benz SLK (R170, facelift 2000) SLK 230 Kompressor
The Mercedes-Benz SLK (R170) marked a significant entry for the German luxury automaker into the burgeoning compact luxury roadster segment. Launched initially in 1996, the R170 generation quickly garnered attention for its innovative retractable hardtop roof, a feature Mercedes-Benz dubbed the “Vario-Roof,” which allowed the vehicle to transform from a secure coupe to an open-air roadster in a matter of seconds. This groundbreaking technology, combined with the brand’s signature blend of luxury and engineering, made the SLK a formidable competitor against rivals like the BMW Z3 and Porsche Boxster.
The model under review, the Mercedes-Benz SLK (R170, facelift 2000) SLK 230 Kompressor (197 Hp), represents the refined and updated version of the first-generation SLK. Introduced in February 2000, the facelift brought a host of improvements, including updated styling cues, enhanced interior materials, and mechanical revisions designed to sharpen its performance and appeal. The SLK 230 Kompressor, with its supercharged four-cylinder engine, was a cornerstone of the lineup, offering a compelling balance of spirited performance and relative fuel efficiency, making it a popular choice for enthusiasts and luxury buyers seeking a distinctive two-seater experience. Its production run continued until April 2004, cementing its place as a pivotal model in Mercedes-Benz’s modern history and a pioneer in the retractable hardtop market.
The Mercedes-Benz SLK (R170, facelift 2000) SLK 230 Kompressor: A Modern Classic Roadster
Powertrain and Driving Dynamics
At the heart of the Mercedes-Benz SLK (R170, facelift 2000) SLK 230 Kompressor (197 Hp) lies the M 111.983 engine, a 2.3-liter (2295 cm3) inline-four cylinder unit that distinguishes itself with a supercharger and intercooler setup. This “Kompressor” technology, a hallmark of Mercedes-Benz engineering during this era, provided a significant boost in performance, delivering 197 horsepower at 5300 rpm. More impressively, the engine generated a robust 206.52 lb.-ft. of torque across a broad range from 2500 to 5000 rpm. This wide torque band ensured excellent responsiveness and acceleration throughout the rev range, a characteristic that made the SLK 230 Kompressor feel lively and engaging in various driving conditions.
Power was sent to the rear wheels via a precise 6-speed manual transmission, offering drivers a direct and involving connection to the car’s performance capabilities. This powertrain combination enabled the SLK 230 Kompressor to accelerate from 0 to 60 mph in a brisk 6.8 seconds, with a top speed of 149.13 mph. These figures were highly competitive for its segment at the turn of the millennium. The vehicle’s weight-to-power ratio of 6.6 kg/Hp (approximately 14.55 lbs/Hp) contributed to its agile feel.
From an efficiency standpoint, the SLK 230 Kompressor achieved a combined fuel economy of 24 US mpg (9.8 l/100 km), which was respectable given its performance capabilities. It also met the Euro 4 emission standard, with CO2 emissions of 233 g/km, reflecting Mercedes-Benz’s commitment to balancing performance with environmental considerations of the time. The rear-wheel-drive architecture, coupled with a sophisticated suspension system featuring double wishbones and coil springs at the front and an independent multi-link setup with coil springs at the rear, provided a confident and planted ride. Hydraulic power steering with a recirculating ball mechanism offered communicative feedback, while ventilated disc brakes at the front and solid discs at the rear, assisted by ABS, ensured strong stopping power.
Design, Comfort, and Innovation
The SLK (R170) was visually striking, embodying a sleek, compact roadster aesthetic that blended classic sports car proportions with modern Mercedes-Benz design language. The facelifted model retained the original’s essence while introducing subtle enhancements, such as redesigned bumpers, side skirts, and clear-lens headlights and taillights, giving it a more contemporary and aggressive look. As a pure two-seater roadster, it offered an intimate driving experience.
Its defining feature, the electro-hydraulically operated Vario-Roof, was a marvel of engineering. This innovative retractable hardtop allowed the SLK to transform from an open-top roadster to a weather-sealed coupe in approximately 25 seconds, offering the best of both worlds: the thrill of open-air motoring and the security, noise insulation, and climate control of a fixed-roof vehicle. This feature significantly influenced the automotive industry, inspiring many subsequent convertible designs.
Inside, the SLK 230 Kompressor featured a driver-focused cockpit with high-quality materials, typical of Mercedes-Benz. The facelift introduced updated trim options, revised instrumentation, and improved ergonomics. Standard features often included leather upholstery, automatic climate control, and a premium audio system, emphasizing the luxury aspect of the vehicle. Despite its compact dimensions—a length of 157.87 inches and a width of 67.52 inches—the cabin was designed to be comfortable for two occupants. Trunk space, while compromised when the roof was stowed (5.12 cu. ft.), expanded to a more practical 12.29 cu. ft. with the roof up, offering reasonable utility for a roadster. Safety features for the era included standard anti-lock braking system (ABS) and robust structural integrity. The staggered tire setup (205/55 R 16 front, 225/50 R 16 rear) on 16-inch alloy wheels further enhanced its sporty stance and handling characteristics.
Technical Specifications
| General Information | |
|---|---|
| Brand | Mercedes-Benz |
| Model | SLK |
| Generation | SLK (R170, facelift 2000) |
| Type (Engine) | SLK 230 Kompressor (197 Hp) |
| Start of Production | February, 2000 |
| End of Production | April, 2004 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Roadster |
| Seats | 2 |
| Doors | 2 |
| Performance Specifications | |
| Fuel Consumption (Urban, NEDC) | 14.1 l/100 km (16.7 US mpg) |
| Fuel Consumption (Extra Urban, NEDC) | 7.3 l/100 km (32.2 US mpg) |
| Fuel Consumption (Combined, NEDC) | 9.8 l/100 km (24 US mpg) |
| CO2 Emissions (NEDC) | 233 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 60 mph | 6.8 sec |
| Acceleration 0 – 100 km/h | 7.2 sec |
| Maximum Speed | 240 km/h (149.13 mph) |
| Emission Standard | Euro 4 |
| Weight-to-Power Ratio | 6.6 kg/Hp (150.4 Hp/tonne) |
| Weight-to-Torque Ratio | 4.7 kg/Nm (213.7 Nm/tonne) |
| Engine Specifications | |
| Power | 197 Hp @ 5300 rpm |
| Power per liter | 85.8 Hp/l |
| Torque | 280 Nm @ 2500-5000 rpm (206.52 lb.-ft.) |
| Engine Layout | Front, Longitudinal |
| Engine Model/Code | M 111.983 |
| Engine Displacement | 2295 cm3 (2.3 Liters / 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 | 9:1 |
| 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) |
| Coolant Capacity | 8 l (8.45 US qt) |
| Space, Volume and Weights | |
| Kerb Weight | 1310 kg (2888.06 lbs.) |
| Max. Weight | 1645 kg (3626.6 lbs.) |
| Max Load | 335 kg (738.55 lbs.) |
| Trunk (boot) space – minimum | 145 l (5.12 cu. ft.) |
| Trunk (boot) space – maximum | 348 l (12.29 cu. ft.) |
| Fuel Tank Capacity | 60 l (15.85 US gal) |
| Max. Roof Load | 30 kg (66.14 lbs.) |
| Dimensions | |
| Length | 4010 mm (157.87 in.) |
| Width | 1715 mm (67.52 in.) |
| Height | 1279 mm (50.35 in.) |
| Wheelbase | 2400 mm (94.49 in.) |
| Front Track | 1488 mm (58.58 in.) |
| Rear (Back) Track | 1485 mm (58.46 in.) |
| Drag Coefficient (Cd) | 0.33 |
| Minimum Turning Circle (Turning Diameter) | 10.6 m (34.78 ft.) |
| Drivetrain, Brakes and Suspension Specifications | |
| 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 | 6 gears, manual transmission |
| Front Suspension | Coil spring, Double wishbone, Transverse stabilizer |
| Rear Suspension | Independent multi-link suspension, Transverse stabilizer, Coil spring |
| 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 (Front) | 205/55 R 16 91 V |
| Tires Size (Rear) | 225/50 R 16 92 V |
| Wheel Rims Size (Front) | 7 J x 16 H 2 |
| Wheel Rims Size (Rear) | 8 J x 16 H 2 |
Legacy and Market Influence
The Mercedes-Benz SLK (R170), particularly the facelifted 2000-2004 models like the SLK 230 Kompressor, left an indelible mark on the automotive landscape. Its primary legacy is undoubtedly the popularization of the retractable hardtop, a feature that was once exotic but became a mainstream luxury offering thanks to the SLK’s success. This innovation provided a compelling value proposition, offering the stylistic appeal and driving pleasure of a convertible with the practicality, security, and refinement of a coupe, all in one package.
In the competitive compact luxury roadster segment, the SLK 230 Kompressor carved out a strong niche. It competed directly with the BMW Z3 (and later the Z4), which offered a more traditional soft-top experience, and the Porsche Boxster, known for its mid-engine purity and superior handling dynamics. While the SLK might not have been as razor-sharp as a Boxster, it countered with a distinct blend of Mercedes-Benz luxury, comfort, and the unique Vario-Roof, appealing to buyers who valued sophistication and innovation alongside performance. The supercharged four-cylinder engine delivered strong, accessible power, making it a fun and engaging car for daily driving or weekend cruises.
The R170’s success was instrumental in establishing the SLK nameplate within Mercedes-Benz’s global lineup and paved the way for subsequent generations (R171 and R172). Today, the Mercedes-Benz SLK (R170) is considered a modern classic. It represents an era when Mercedes-Benz was actively pushing technological boundaries in accessible luxury vehicles. Its relatively simple mechanicals, compared to later models, make it an attractive proposition for enthusiasts looking for a fun, stylish, and relatively reliable entry into Mercedes-Benz ownership. The SLK 230 Kompressor, in particular, is often lauded for its robust engine and engaging manual transmission option, embodying a blend of sportiness and everyday usability that continues to captivate collectors and casual drivers alike. Its market impact was profound, demonstrating that luxury, performance, and groundbreaking technology could coexist in a compact, stylish package.



