The Mercedes-Benz CLK 430, produced from June 1998 to August 1999, represented the high-performance variant of the C208 CLK generation. Positioned as the flagship coupe within the lineup, it offered a significant step up in power and refinement compared to the four-cylinder and V6 models. The CLK 430 aimed to deliver a blend of grand touring comfort and sporty handling, appealing to buyers seeking a luxurious and capable coupe. It was a key model in establishing the CLK as a desirable alternative to BMW’s 3 Series Coupe and Audi’s TT.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | CLK |
| Generation | CLK (C208) |
| Type (Engine) | CLK 430 V8 (279 Hp) 5G-TRONIC |
| Start of production | June, 1998 |
| End of production | August, 1999 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (economy) – urban (NEDC) | 16.6 l/100 km (14.2 US mpg, 17 UK mpg, 6 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 8 l/100 km (29.4 US mpg, 35.3 UK mpg, 12.5 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 11.2 l/100 km (21 US mpg, 25.2 UK mpg, 8.9 km/l) |
| CO2 emissions (NEDC) | 263 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.4 sec |
| Acceleration 0 – 62 mph | 6.4 sec |
| Acceleration 0 – 60 mph | 6.1 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 3 |
| Weight-to-power ratio | 5.3 kg/Hp, 188.5 Hp/tonne |
| Weight-to-torque ratio | 3.7 kg/Nm, 270.3 Nm/tonne |
| Power | 279 Hp @ 5750 rpm |
| Power per litre | 65.4 Hp/l |
| Torque | 400 Nm @ 3000-4400 rpm (295.02 lb.-ft. @ 3000-4400 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 113.943 |
| Engine displacement | 4266 cm3 (260.33 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 89.9 mm (3.54 in.) |
| Piston Stroke | 84 mm (3.31 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 3 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 11 l (11.62 US qt | 9.68 UK qt) |
| Kerb Weight | 1480 kg (3262.84 lbs.) |
| Max. weight | 1960 kg (4321.06 lbs.) |
| Max load | 480 kg (1058.22 lbs.) |
| Trunk (boot) space – minimum | 420 l (14.83 cu. ft.) |
| Fuel tank capacity | 62 l (16.38 US gal | 13.64 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Length | 4567 mm (179.8 in.) |
| Width | 1722 mm (67.8 in.) |
| Width including mirrors | 1960 mm (77.17 in.) |
| Height | 1380 mm (54.33 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 | 10.7 m (35.1 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 5 gears, automatic transmission G-TRONIC |
| 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 | Front wheel tires: 205/55 R 16Rear wheel tires: 225/50 R 16 |
| Wheel rims size | Front wheel rims: 7 J x 16Rear wheel rims: 8 J x 16 |
Powertrain & Engine Architecture
The heart of the CLK 430 is the M113.943 4.3-liter V8 engine. This naturally aspirated powerplant featured all-aluminum construction, a three-valve per cylinder (two intake, one exhaust) SOHC valvetrain, and a multi-port fuel injection system. The engine produced 279 horsepower at 5750 rpm and 400 Nm (295 lb-ft) of torque between 3000 and 4400 rpm. The M113 engine family was known for its smooth power delivery and robust construction. The CLK 430 paired this engine with a 5G-TRONIC five-speed automatic transmission. This transmission offered smooth shifts and a torque converter lock-up feature to improve fuel efficiency at cruising speeds. The transmission was electronically controlled, adapting shift points based on driving conditions and throttle input.
Driving Characteristics
The CLK 430 delivered a distinctly different driving experience compared to the lower-powered CLK variants. The V8 engine provided ample power for effortless acceleration and confident highway cruising. The 0-60 mph sprint took approximately 6.1 seconds, a respectable figure for a grand touring coupe of its era. While not a dedicated sports car, the CLK 430 offered a balanced chassis and responsive steering. The automatic transmission, while smooth, could feel slightly less engaging than a manual gearbox, particularly for drivers seeking a more involved driving experience. The gear ratios were tuned for comfortable cruising rather than outright performance.
Equipment & Trim Levels
The CLK 430 came standard with a generous array of features, reflecting its position as the premium model. Standard equipment included leather upholstery, power-adjustable front seats with memory function, automatic climate control, a premium sound system, and alloy wheels. Optional extras included a sunroof, navigation system, heated seats, and upgraded interior trim materials. The interior design emphasized luxury and comfort, with a focus on high-quality materials and a refined aesthetic.
Chassis & Braking
The CLK 430 utilized a coil spring and double wishbone suspension setup at the front, and an independent multi-link suspension at the rear. This configuration provided a good balance of ride comfort and handling precision. Stabilizer bars were fitted to both axles to reduce body roll during cornering. Braking duties were handled by ventilated discs at the front and solid discs at the rear, equipped with ABS (Anti-lock Braking System) as standard. The braking system provided adequate stopping power for the vehicle’s weight and performance capabilities.
Market Reception & Comparison
The CLK 430 was generally well-received by automotive critics. Reviewers praised its powerful engine, comfortable ride, and luxurious interior. However, some criticized its relatively high fuel consumption and the slightly detached feel of the automatic transmission. Compared to the CLK 320 (V6), the 430 offered a significant performance advantage but came at a higher price point. The CLK 430 also competed with other grand touring coupes, such as the BMW 3 Series Coupe and Audi TT, offering a different blend of luxury and performance.
Legacy
The M113 V8 engine used in the CLK 430 is known for its durability and reliability. With proper maintenance, these engines can provide many years of trouble-free service. Today, the CLK 430 remains a desirable classic coupe, appreciated for its combination of style, performance, and luxury. While maintenance costs can be higher than for the four-cylinder or V6 models, the CLK 430 offers a unique driving experience that continues to appeal to enthusiasts. The used car market values these vehicles based on condition, mileage, and originality, with well-maintained examples commanding a premium.
