The Mercedes-Benz CL 550 4MATIC, produced between 2008 and 2010, represents a compelling blend of luxury, performance, and technology within the C216 generation of the CL-Class grand tourer. Positioned as a mid-to-high range offering in the CL lineup, it served as a step up from the CL 500 while remaining below the more potent CL 63 AMG and CL 65 AMG models. This variant aimed to deliver a refined driving experience with ample power and the added security of all-wheel drive, appealing to buyers seeking a sophisticated and capable coupe.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | CL |
| Generation | CL (C216) |
| Type (Engine) | CL 550 V8 (382 Hp) 4MATIC 7G-TRONIC |
| Start of production | 2008 |
| End of production | 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 15.4 l/100 km (15.3 US mpg, 18.3 UK mpg, 6.5 km/l) |
| Fuel consumption (extra urban) | 9.7 l/100 km (24.2 US mpg, 29.1 UK mpg, 10.3 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.4 sec |
| Acceleration 0 – 62 mph | 5.4 sec |
| Acceleration 0 – 60 mph | 5.1 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Weight-to-power ratio | 5.3 kg/Hp, 187.7 Hp/tonne |
| Weight-to-torque ratio | 3.8 kg/Nm, 260.4 Nm/tonne |
| Power | 382 Hp @ 6000 rpm |
| Power per litre | 70 Hp/l |
| Torque | 530 Nm @ 3000 rpm (390.91 lb.-ft. @ 3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 273 |
| Engine displacement | 5461 cm3 (333.25 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 98 mm (3.86 in.) |
| Piston Stroke | 90.5 mm (3.56 in.) |
| Compression ratio | 10.7:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 11.5 l (12.15 US qt | 10.12 UK qt) |
| Kerb Weight | 2035 kg (4486.41 lbs.) |
| Trunk (boot) space – minimum | 490 l (17.3 cu. ft.) |
| Fuel tank capacity | 90 l (23.78 US gal | 19.8 UK gal) |
| Length | 5065 mm (199.41 in.) |
| Width | 1871 mm (73.66 in.) |
| Width including mirrors | 2139 mm (84.21 in.) |
| Height | 1418 mm (55.83 in.) |
| Wheelbase | 2955 mm (116.34 in.) |
| Front track | 1601 mm (63.03 in.) |
| Rear (Back) track | 1607 mm (63.27 in.) |
| Front overhang | 917 mm (36.1 in.) |
| Rear overhang | 1193 mm (46.97 in.) |
| Minimum turning circle (turning diameter) | 11.6 m (38.06 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 7 gears, automatic transmission G-TRONIC |
| Front suspension | Independent multi-link suspension, Air suspension |
| Rear suspension | Independent multi-link suspension, Air suspension |
| Front brakes | Ventilated discs, 335 mm |
| Rear brakes | Ventilated discs, 300 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | Front wheel tires: 255/45 R18; 255/40 R19; 255/35 R20Rear wheel tires: 275/45 R18; 275/40 R19; 275/35 R20 |
| Wheel rims size | Front wheel rims: 8.5J x 18; 8.5J x 19; 8.5J x 20Rear wheel rims: 9.5J x 18; 9.5J x 19; 9.5J x 20 |
Powertrain & Engine Architecture
At the heart of the CL 550 4MATIC lies the M273 engine, a 5.5-liter naturally aspirated V8. This engine, a staple of Mercedes-Benz’s lineup during this period, utilizes a three-valve per cylinder (two intake, one exhaust) DOHC configuration. Fuel delivery is managed by a multi-port fuel injection system, ensuring precise fuel atomization for efficient combustion. The engine produces 382 horsepower at 6,000 rpm and 390 lb-ft of torque at 3,000 rpm. The 7G-TRONIC automatic transmission, a seven-speed unit, was paired exclusively with this engine. This transmission is known for its smooth shifts and ability to keep the engine in its optimal power band. The 4MATIC all-wheel-drive system distributes power between the front and rear axles, enhancing traction and stability, particularly in adverse weather conditions.
Driving Characteristics
The CL 550 4MATIC delivers a refined and comfortable driving experience. While not as overtly sporty as the AMG variants, the 5.5-liter V8 provides ample power for effortless cruising and confident overtaking. The 7G-TRONIC transmission contributes to smooth acceleration, and the all-wheel-drive system inspires confidence in various road conditions. Compared to the CL 500 (with its smaller engine), the CL 550 offers a noticeable increase in performance. The 7G-TRONIC transmission’s gear ratios are tuned for a balance between fuel efficiency and responsiveness. The car feels substantial due to its weight, but the air suspension effectively mitigates bumps and imperfections in the road, providing a comfortable ride.
Equipment & Trim Levels
The CL 550 4MATIC came standard with a comprehensive array of luxury features. These included leather upholstery, power-adjustable and heated front seats with memory function, a premium sound system, dual-zone automatic climate control, and a power sunroof. Optional extras were plentiful, including massaging seats, a rear-seat entertainment system, a panoramic sunroof, and various wood and metal trim options. The interior design emphasized elegance and sophistication, with high-quality materials and meticulous attention to detail. Dashboard configuration was consistent across the C216 generation, featuring a prominent central display screen and intuitive controls.
Chassis & Braking
The CL 550 4MATIC utilizes an independent multi-link suspension system at both the front and rear, complemented by Mercedes-Benz’s Airmatic air suspension. This system automatically adjusts the suspension damping and ride height to optimize comfort and handling. Braking duties are handled by ventilated disc brakes on all four wheels. The front brakes measure 335mm in diameter, while the rear brakes are 300mm. Anti-lock braking system (ABS) is standard, providing enhanced stopping power and control. The car’s substantial weight necessitates a robust braking system, and the CL 550 delivers adequate stopping performance.
Market Reception & Comparison
The CL 550 4MATIC was generally well-received by automotive critics. It was praised for its luxurious interior, comfortable ride, and strong performance. The all-wheel-drive system was seen as a valuable asset, particularly in regions with inclement weather. Compared to the CL 500, the CL 550 offered a more engaging driving experience, while remaining more affordable than the high-performance AMG models. Fuel economy, however, was a common criticism, as the 5.5-liter V8 is not particularly fuel-efficient. Reliability was generally good, although the complex air suspension system could be prone to issues over time.
Legacy
The CL 550 4MATIC, while not the most iconic variant of the C216 generation, remains a desirable grand tourer in the used car market. The M273 engine is known for its durability, provided it has been properly maintained. The 7G-TRONIC transmission is also generally reliable. However, potential buyers should be aware of the potential for air suspension issues and the cost of maintaining a luxury vehicle of this caliber. The CL 550 4MATIC represents a sweet spot in the C216 lineup, offering a compelling combination of luxury, performance, and all-weather capability.
