The Mercedes Benz Slk Class is renowned for its blend of sporty performance and luxurious comfort in a compact roadster. This article delves into the technical specifications across various models in the SLK range, providing a detailed overview for automotive enthusiasts and those seeking in-depth information. We will explore the key technical data of the SLK300, SLK350, and the high-performance AMG SLK55 variants.
Vehicle Overview and Chassis
The Mercedes Benz SLK Class is consistently designed as a sporty and agile 2-door, 2-passenger roadster. All models within the SLK range feature a robust and lightweight steel unibody chassis, ensuring a solid foundation for both performance and safety.
| SLK300 | SLK350 | AMG SLK55 | |
|---|---|---|---|
| Vehicle Type | 2-door, 2-passenger roadster | 2-door, 2-passenger roadster | 2-door, 2-passenger roadster |
| Chassis | Steel unibody | Steel unibody | Steel unibody |
Engine Specifications: Power and Performance
The heart of any sports car lies in its engine, and the Mercedes Benz SLK Class offers a range of powertrains to suit different driving preferences. From the efficient yet potent SLK300 to the thrilling AMG SLK55, each engine is engineered for optimal performance and responsiveness.
| SLK300 | SLK350 | AMG SLK55 | |
|---|---|---|---|
| Type | 2.0-liter inline 4-cylinder | 3.5-liter V6 | 5.5-liter AMG V8 |
| Engine Block Material | Aluminum | Aluminum | Aluminum |
| Cylinder Head Material | Alloy | Alloy | Alloy |
| Valve arrangement | 4 valves/cylinder | 4 valves/cylinder | 4 valves/cylinder |
| Displacement (cc) | 1,991 | 3,498 | 5,461 |
| Bore (in.) | TBA | 3.66 | 3.86 |
| Stroke (in.) | TBA | 3.38 | 3.56 |
| Compression ratio | 9.8 : 1 | 12.0 : 1 | 12.6 : 1 |
| Horsepower @ rpm | 241 @ 5,500 | 302 @ 6,500 | 415 @ 6,800 |
| Torque (lb-ft) @ rpm | 278 @ 1,200-4,000 | 278 @ 3,500-5,250 | 398 @ 4,500 |
| Intake system | Turbocharged, direct injection | direct-injection | Direct-injection |
| Max. engine speed (rpm) | TBA | 7,000 | 7,200 |
The SLK300 features a 2.0-liter turbocharged inline-4 engine, delivering a robust 241 horsepower and 278 lb-ft of torque. This engine provides a great balance of performance and fuel efficiency for the Mercedes Benz SLK Class.
Stepping up, the SLK350 is equipped with a 3.5-liter V6 engine, producing 302 horsepower and maintaining the same 278 lb-ft of torque as the SLK300. The V6 offers a smoother and more powerful driving experience, enhancing the sporty character of the Mercedes Benz SLK Class.
For ultimate performance, the AMG SLK55 boasts a hand-built 5.5-liter AMG V8 engine. This powerhouse generates an impressive 415 horsepower and 398 lb-ft of torque, delivering exhilarating acceleration and a signature AMG sound. The AMG variant places the Mercedes Benz SLK Class firmly in the high-performance sports car category.
Performance Metrics: Acceleration and Speed
The performance figures highlight the dynamic capabilities of each Mercedes Benz SLK Class model. From 0-60 mph acceleration to top speed, these numbers reflect the engineering prowess behind these roadsters.
| SLK300 | SLK350 | AMG SLK55 | |
|---|---|---|---|
| 0-60 (sec.) | 5.8 | 5.4 | 4.5 |
| Top speed (limited) (mph) | 155 | 155 | 155 (174*) |
| Fuel economy: city hwy comb. | 25 32 28 | 21 29 24 | 19 28 22 |
*174mph with AMG Development Package
The SLK300 achieves a 0-60 mph sprint in a brisk 5.8 seconds, while the SLK350 shaves that down to 5.4 seconds. The AMG SLK55, with its V8 engine, catapults from 0-60 mph in just 4.5 seconds. All models are electronically limited to a top speed of 155 mph, with the AMG SLK55 capable of reaching 174 mph with the optional AMG Development Package. Fuel economy varies, with the SLK300 offering the most efficient figures and the AMG SLK55 prioritizing performance over economy.
Transmission and Drive Configuration
The transmission systems in the Mercedes Benz SLK Class are designed to complement each engine’s characteristics, providing smooth and responsive gear changes.
| SLK300 | SLK350 | AMG SLK55 | |
|---|---|---|---|
| Type | 9G-TRONIC | 7G-TRONIC PLUS | AMG SPEEDSHIFT 7G- TRONIC PLUS |
| Drive Configuration | Rear-Wheel Drive | Rear-Wheel Drive | Rear-Wheel Drive |
| Gear ratios | |||
| 1 | |||
| 2 | |||
| 3 | |||
| 4 | |||
| 5 | |||
| 6 | |||
| 7 | |||
| 8 | – | – | – |
| 9 | – | – | – |
| 1st Reverse Gear | |||
| 2nd Reverse Gear | |||
| Final drive |
The SLK300 utilizes the advanced 9G-TRONIC 9-speed automatic transmission, offering a wide range of gear ratios for optimal fuel efficiency and performance. The SLK350 is equipped with the 7G-TRONIC PLUS 7-speed automatic transmission, known for its smooth shifts and responsiveness. The AMG SLK55 features the AMG SPEEDSHIFT 7G-TRONIC PLUS, specifically tuned for quicker gear changes and a more dynamic driving experience, befitting the AMG pedigree of the Mercedes Benz SLK Class. All models maintain a rear-wheel-drive configuration, essential for a classic sports car feel.
Suspension, Tires & Brakes: Handling and Control
To ensure agile handling and confident stopping power, the Mercedes Benz SLK Class is equipped with sophisticated suspension, tire, and brake systems.
| SLK300 | SLK350 | AMG SLK55 | |
|---|---|---|---|
| Suspension type | |||
| Steering | |||
| Steering Ratio | |||
| Turning Circle | |||
| Standard Tire | High-Performance | High-Performance | High-Performance |
| Standard Front Tire Size | 225/45 R17 | 225/40 R18 | 225/40 R18 |
| Standard Rear Tire Size | 245/40 R17 | 245/35 R18 | 245/35 R18 |
| Standard Front Wheel | 7.5J X 17 | 7.5J X 17 | 7.5J X 18 |
| Standard Rear Wheel | 8.5J X 17 | 8.5J X 17 | 9J X 18 |
| Front Wheel Brake design | |||
| Rear Wheel Brake design | |||
| Front Brake Disc Diameter (in.) | |||
| Front Brake Disc Thickness (in.) | |||
| Rear Brake Disc Diameter (in.) | |||
| Rear Brake Disc Thickness (in.) |
All Mercedes Benz SLK Class models are fitted with high-performance tires to maximize grip and handling. The SLK300 and SLK350 come with 17-inch and 18-inch wheels respectively, while the AMG SLK55 is equipped with larger 18-inch wheels as standard, accommodating its higher performance capabilities. Detailed specifications on suspension type, steering, steering ratio, turning circle, and brake design would provide a more complete picture of the handling dynamics, but the table highlights the tire and wheel differences across models.
Exterior and Interior Dimensions: Size and Space
The dimensions of the Mercedes Benz SLK Class contribute to its sporty stance and comfortable interior for a roadster.
| SLK300 | SLK350 | AMG SLK55 | |
|---|---|---|---|
| Wheelbase | 95.7 | 95.7 | 95.7 |
| Length | 162.8 | 162.8 | 163.2 |
| Width including mirrors | 79.0 | 79.0 | 79.0 |
| Height | 51.2 | 51.2 | 51.2 |
| Track width front | 61.4 | 61.4 | 61.0 |
| Track width rear | 61.6 | 61.6 | 61.7 |
The wheelbase remains consistent across all models at 95.7 inches, contributing to the SLK’s agile handling. Overall length is nearly identical, with the AMG SLK55 being slightly longer. Width and height are also consistent, maintaining the sleek and low-profile silhouette of the Mercedes Benz SLK Class. Track width variations are minor, reflecting model-specific tuning adjustments.
| SLK300 | SLK350 | AMG SLK55 | |
|---|---|---|---|
| Headroom (top up) | 38.0 39.1 w/ Pano or MAGIC SKY | 38.0 39.1 w/ Pano or MAGIC SKY | 38.0 39.1 w/Pano or MAGIC SKY |
| Leg room | 42.5 | 42.5 | 42.5 |
| Shoulder room | 52.2 | 52.2 | 52.2 |
Interior dimensions provide a comfortable space for occupants. Headroom varies slightly depending on the roof option (standard, panoramic, or MAGIC SKY), while legroom and shoulder room remain consistent across the Mercedes Benz SLK Class range.
Capacities: Trunk Space and Weight
Practicality in a roadster is often considered in terms of trunk capacity and curb weight.
| SLK300 | SLK350 | AMG SLK55 | |
|---|---|---|---|
| Trunk Capacity (roof up/down) (cu.ft.) | 10.1/6.4 | 10.1/6.4 | 10.1/6.4 |
| Curb weight (lbs.) | 3,417 | 3,417 | 3,583 |
| Fuel tank (gallons) | 15.9 | 15.9 | 18.5 |
Trunk capacity is the same for all models, offering 10.1 cubic feet with the roof up and 6.4 cubic feet with the roof down. Curb weight is nearly identical for the SLK300 and SLK350, while the AMG SLK55 is slightly heavier due to its larger V8 engine and performance enhancements. The AMG SLK55 also features a larger fuel tank capacity, reflecting its higher fuel consumption during spirited driving.
For more detailed information about the Mercedes Benz SLK Class and other Mercedes-Benz vehicles, please visit www.media.mbusa.com. This resource offers a wealth of information for enthusiasts and professionals alike.
