The Mercedes Benz Slk Class is renowned for its sporty performance and luxurious roadster experience. This article provides a detailed technical overview of various Mercedes Benz SLK Class models, specifically focusing on the SLK300, SLK350, and the high-performance AMG SLK55 variant. Whether you are a car enthusiast, a potential buyer, or a mechanic working on these vehicles, understanding the technical specifications is crucial. This guide breaks down the key data points for each model, offering a comprehensive comparison to aid your understanding.
Engine Specifications: Power Under the Hood
The heart of any vehicle lies in its engine, and the Mercedes Benz SLK Class offers a range of powerful options to suit different driving preferences.
SLK300 Engine: Efficient and Dynamic
The SLK300 is equipped with a 2.0-liter inline 4-cylinder engine, designed for efficiency and responsive performance. Key engine specifications include:
- Type: 2.0-liter inline 4-cylinder
- Engine Block Material: Aluminum
- Cylinder Head Material: Alloy
- Valve Arrangement: 4 valves per cylinder
- Displacement: 1,991 cc
- Bore: (Data not available in original document)
- Stroke: (Data not available in original document)
- Compression Ratio: 9.8 : 1
- Horsepower: 241 hp @ 5,500 rpm
- Torque: 278 lb-ft @ 1,200-4,000 rpm
- Intake System: Turbocharged, direct injection
- Maximum Engine Speed: (Data not available in original document)
This engine configuration allows the SLK300 to deliver a balance of fuel economy and enjoyable driving dynamics, thanks to its turbocharged and direct-injection technology.
SLK350 Engine: The V6 Advantage
Stepping up in power, the SLK350 features a 3.5-liter V6 engine, offering a smoother and more robust driving experience. Here are the engine details:
- Type: 3.5-liter V6
- Engine Block Material: Aluminum
- Cylinder Head Material: Alloy
- Valve Arrangement: 4 valves per cylinder
- Displacement: 3,498 cc
- Bore: 3.66 inches
- Stroke: 3.38 inches
- Compression Ratio: 12.0 : 1
- Horsepower: 302 hp @ 6,500 rpm
- Torque: 278 lb-ft @ 3,500-5,250 rpm
- Intake System: Direct-injection
- Maximum Engine Speed: 7,000 rpm
The V6 engine in the SLK350 provides a significant power increase over the SLK300, making it a compelling choice for drivers seeking more spirited performance.
AMG SLK55 Engine: Unleashed V8 Power
For those craving ultimate performance, the AMG SLK55 boasts a hand-built 5.5-liter AMG V8 engine. This powerhouse transforms the SLK Class into a true performance roadster. Engine specifics include:
- Type: 5.5-liter AMG V8
- Engine Block Material: Aluminum
- Cylinder Head Material: Alloy
- Valve Arrangement: 4 valves per cylinder
- Displacement: 5,461 cc
- Bore: 3.86 inches
- Stroke: 3.56 inches
- Compression Ratio: 12.6 : 1
- Horsepower: 415 hp @ 6,800 rpm
- Torque: 398 lb-ft @ 4,500 rpm
- Intake System: Direct-injection
- Maximum Engine Speed: 7,200 rpm
The AMG SLK55 engine delivers exhilarating power and torque, placing it firmly in the sports car category. The AMG enhancements ensure not just raw power, but also optimized engine response and durability.
Performance Metrics: 0-60 Times, Top Speed, and Fuel Economy
Performance figures are key indicators of a vehicle’s capabilities. Let’s compare the performance of the Mercedes Benz SLK Class models:
| Metric | SLK300 | SLK350 | AMG SLK55 |
|---|---|---|---|
| 0-60 mph (sec.) | 5.8 | 5.4 | 4.5 |
| Top Speed (mph, limited) | 155 | 155 | 155 (174*) |
| Fuel Economy (City/Hwy/Comb. mpg) | 25/32/28 | 21/29/24 | 19/28/22 |
*174mph with AMG Development Package
As shown, the AMG SLK55 significantly outperforms the other models in acceleration, achieving a blistering 0-60 mph time of just 4.5 seconds. While all models share a limited top speed of 155 mph, the AMG SLK55 can reach 174 mph with the optional AMG Development Package. Fuel economy naturally varies with engine size, with the SLK300 offering the most efficient figures.
Transmission Details: Gearboxes for Every Driving Style
The transmission systems in the Mercedes Benz SLK Class models are engineered to complement their respective engines, providing smooth and responsive gear changes.
- SLK300: Equipped with the advanced 9G-TRONIC 9-speed automatic transmission. This transmission offers a wide gear ratio spread, contributing to both fuel efficiency and dynamic performance.
- SLK350: Features the 7G-TRONIC PLUS 7-speed automatic transmission. This gearbox is known for its smooth shifts and reliability, perfectly matched to the V6 engine’s characteristics.
- AMG SLK55: Utilizes the AMG SPEEDSHIFT 7G-TRONIC PLUS transmission. This is a performance-tuned version of the 7G-TRONIC PLUS, specifically calibrated by AMG for faster shift times and enhanced driver engagement.
While the original data table provides placeholders for gear ratios and drive configurations, it is important to note that all SLK Class models discussed here are rear-wheel drive, ensuring a classic roadster driving experience.
Suspension, Tires & Brakes: Handling and Control
The Mercedes Benz SLK Class is designed for agile handling and confident braking. Key features in this area include:
- Suspension Type: (Data not available in original document, but typically independent suspension for all models for refined handling).
- Steering: (Data not available in original document, but typically rack and pinion power steering for precise control).
- Tires: All models are equipped with high-performance tires as standard, optimized for grip and handling.
- SLK300: Front Tires: 225/45 R17, Rear Tires: 245/40 R17
- SLK350: Front Tires: 225/40 R18, Rear Tires: 245/35 R18
- AMG SLK55: Front Tires: 225/40 R18, Rear Tires: 245/35 R18
- Wheels: Alloy wheels are standard, with sizes varying by model.
- SLK300: Front Wheels: 7.5J X 17, Rear Wheels: 8.5J X 17
- SLK350: Front Wheels: 7.5J X 17, Rear Wheels: 8.5J X 17
- AMG SLK55: Front Wheels: 7.5J X 18, Rear Wheels: 9J X 18
- Brakes: (Design and specifications not detailed in original document, but all models feature disc brakes front and rear, with larger, performance-oriented brakes on the AMG SLK55).
The combination of high-performance tires, tuned suspension, and robust braking systems ensures that the Mercedes Benz SLK Class delivers engaging and safe driving dynamics across all models.
Exterior and Interior Dimensions: Size and Space
Understanding the dimensions of the Mercedes Benz SLK Class helps in assessing its footprint and interior space.
Exterior Dimensions (inches):
| Dimension | SLK300 | SLK350 | AMG SLK55 |
|---|---|---|---|
| Wheelbase | 95.7 | 95.7 | 95.7 |
| Length | 162.8 | 162.8 | 163.2 |
| Width (inc. 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 |
Interior Dimensions (inches):
| Dimension | 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 |
The dimensions are largely consistent across the models, with minor variations in length and track width. The interior offers comfortable space for two passengers, with headroom being slightly increased with the optional panoramic or MAGIC SKY control roof.
Capacities: Trunk Space and Weight
Practical aspects like trunk capacity and curb weight are also important considerations.
| Capacity | 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 |
The trunk capacity remains the same across all models, offering practical space for a roadster. The AMG SLK55 has a slightly higher curb weight due to its larger engine and performance components, and it also benefits from a larger fuel tank for extended driving range.
Conclusion: Choosing Your Mercedes Benz SLK Class
This detailed technical data comparison highlights the distinct characteristics of the Mercedes Benz SLK300, SLK350, and AMG SLK55 models. The SLK300 offers an efficient and enjoyable entry point to the SLK Class, while the SLK350 provides a step up in power and refinement with its V6 engine. For ultimate performance enthusiasts, the AMG SLK55 delivers breathtaking power and dynamic handling thanks to its hand-built V8 engine and AMG enhancements.
Understanding these technical specifications is essential for anyone looking to buy, maintain, or simply appreciate the Mercedes Benz SLK Class. For more in-depth information and expert Mercedes-Benz repair services, visit benzxentry.store.
