The Mercedes-Benz CLK 500, produced from May 2005 to June 2006, represents the high-performance variant of the A209 CLK facelift generation. Positioned as the flagship model within the CLK range, it offered a luxurious grand touring experience. The A209 series, itself a significant evolution of the W208 CLK, combined the elegant styling of a coupe or convertible with the performance expected of a Mercedes-Benz. The CLK 500 specifically aimed to deliver substantial power and refinement, appealing to buyers seeking a sophisticated and capable open-air or coupe experience. It was a key competitor to vehicles like the BMW 6 Series and Porsche 911 in the premium sports car segment.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | CLK |
| Generation | CLK (A209, facelift 2005) |
| Type | CLK 500 (306 Hp) 7G-TRONIC |
| Start of production | May, 2005 |
| End of production | June, 2006 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 16.9-17.2 l/100 km (13.9 – 13.7 US mpg, 16.7 – 16.4 UK mpg, 5.9 – 5.8 km/l) |
| Fuel consumption (extra urban) | 8.2-8.3 l/100 km (28.7 – 28.3 US mpg, 34.4 – 34 UK mpg, 12.2 – 12 km/l) |
| Fuel consumption (combined) | 11.1-11.6 l/100 km (21.2 – 20.3 US mpg, 25.4 – 24.4 UK mpg, 9 – 8.6 km/l) |
| CO2 emissions | 265 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.1 sec |
| Acceleration 0 – 62 mph | 6.1 sec |
| Acceleration 0 – 60 mph | 5.8 sec |
| Maximum speed | 250 km/h (155.34 mph) – Electronically limited |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 5.8 kg/Hp, 171.4 Hp/tonne |
| Weight-to-torque ratio | 3.9 kg/Nm, 257.7 Nm/tonne |
| Power | 306 Hp @ 5600 rpm |
| Torque | 460 Nm @ 2700-4250 rpm (339.28 lb.-ft. @ 2700-4250 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 113.968 |
| Engine displacement | 4966 cm3 (303.04 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 97 mm (3.82 in.) |
| Piston Stroke | 84 mm (3.31 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Coolant capacity | 11.5 l (12.15 US qt | 10.12 UK qt) |
| Kerb Weight | 1785 kg (3935.25 lbs.) |
| Max. weight | 2225 kg (4905.29 lbs.) |
| Max load | 440 kg (970.03 lbs.) |
| Trunk (boot) space (minimum) | 390 l (13.77 cu. ft.) |
| Fuel tank capacity | 62 l (16.38 US gal | 13.64 UK gal) |
| Permitted trailer load (with brakes) | 1500 kg (3306.93 lbs.) |
| Permitted trailer load (without brakes) | 750 kg (1653.47 lbs.) |
| Length | 4652 mm (183.15 in.) |
| Width | 1740 mm (68.5 in.) |
| Width including mirrors | 1991 mm (78.39 in.) |
| Height | 1415 mm (55.71 in.) |
| Wheelbase | 2715 mm (106.89 in.) |
| Front track | 1497 mm (58.94 in.) |
| Rear track | 1478 mm (58.19 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle | 10.76 m (35.3 ft.) |
| Drivetrain | Rear wheel drive |
| Gearbox | 7 gears, automatic transmission G-TRONIC |
| Front suspension | Independent type McPherson, Transverse stabilizer |
| Rear suspension | Independent multi-link suspension, Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size (Front) | 225/45 R 17 |
| Tires size (Rear) | 245/40 R 17 |
| Wheel rims size (Front) | 7.5 J x 17 |
| Wheel rims size (Rear) | 8.5 J x 17 |
Powertrain & Engine Architecture
The heart of the CLK 500 is the M113.968 5.0-liter naturally aspirated V8 engine. This engine, a cornerstone of Mercedes-Benz’s performance offerings in the early 2000s, is renowned for its smooth power delivery and robust construction. It features a three-valve-per-cylinder design (two intake, one exhaust) and utilizes multi-port fuel injection. The engine produces 306 horsepower at 5600 rpm and 460 Nm (339 lb-ft) of torque between 2700 and 4250 rpm. The engine’s architecture is a 90-degree V8, contributing to its inherent balance and refinement. Paired with the engine is the 7G-TRONIC automatic transmission, a seven-speed unit that offered smoother shifts and improved fuel efficiency compared to its predecessors. This transmission featured a torque converter lock-up clutch for enhanced efficiency at cruising speeds.
Driving Characteristics
The CLK 500’s driving experience is characterized by effortless power and a comfortable ride. The 7G-TRONIC transmission provides seamless gear changes, allowing the V8 engine to deliver its torque smoothly across the rev range. While not as overtly sporty as some of its rivals, the CLK 500 offers a refined and engaging driving experience. The 0-60 mph sprint takes approximately 5.8 seconds, and the electronically limited top speed of 155 mph provides ample performance for highway cruising and spirited driving. Compared to the CLK 320 or the later CLK 350, the 500 offers a significant performance advantage, with noticeably quicker acceleration and a more authoritative engine note. The automatic transmission, while convenient, doesn’t offer the same level of driver engagement as a manual gearbox.
Equipment & Trim Levels
The CLK 500 came standard with a comprehensive list of features, befitting its flagship status. These included leather upholstery, automatic climate control, power-adjustable seats with memory function, a premium sound system, and a sunroof (on the coupe). The Cabriolet version featured a fully automatic retractable hardtop. Optional extras included navigation system, upgraded leather packages, wood trim options, and advanced driver-assistance systems. The interior design emphasized luxury and comfort, with high-quality materials and meticulous attention to detail. The dashboard layout was typical of Mercedes-Benz at the time, with a focus on ergonomics and ease of use.
Chassis & Braking
The CLK 500 utilized an independent suspension system at all four corners, with a McPherson strut setup at the front and a multi-link setup at the rear. This configuration provided a comfortable ride while maintaining good handling characteristics. Stabilizer bars were fitted front and rear to reduce body roll during cornering. The braking system consisted of ventilated discs on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) was standard, enhancing safety and control. The steering was a rack-and-pinion system with hydraulic power assistance, offering precise and responsive steering feel.
Market Reception & Comparison
The CLK 500 was generally well-received by automotive critics, who praised its powerful engine, refined ride, and luxurious interior. However, some reviewers noted that its handling wasn’t as sharp as some of its competitors, such as the BMW 6 Series. Fuel economy was also a concern, with the V8 engine consuming a significant amount of fuel, especially in urban driving. Compared to the CLK 320 or 350, the 500 offered a substantial performance upgrade but came at a higher price point and with increased running costs. The CLK 500 appealed to buyers who prioritized comfort, refinement, and effortless power over outright sportiness.
Legacy
The M113 V8 engine used in the CLK 500 is known for its durability and reliability, provided it receives regular maintenance. While the car is now over two decades old, well-maintained examples are still sought after by enthusiasts. The 7G-TRONIC transmission has also proven to be relatively reliable, although some units may require servicing as they age. In the used car market, the CLK 500 commands a premium over lower-spec CLK models, reflecting its higher performance and luxurious features. It remains a desirable grand tourer for those seeking a classic Mercedes-Benz experience.
