2004-2006 Mercedes-Benz CLS coupe (C219) CLS 500 V8 (306 Hp) 7G-TRONIC

The Mercedes-Benz CLS 500, produced between September 2004 and June 2006, represents a pivotal model within the C219 generation of the CLS-Class “four-door coupe.” Positioned as a near-luxury offering within the lineup, it bridged the gap between the more accessible CLS 350 and the high-performance CLS 63 AMG. The C219 CLS was groundbreaking for its time, establishing a new segment blending the elegance of a coupe with the practicality of a sedan. It was built on the W211 E-Class platform, sharing many components but distinguished by its dramatically sloping roofline and unique styling. This variant, equipped with the M113 V8 engine and the 7G-TRONIC automatic transmission, aimed to deliver a refined and powerful driving experience.

Technical Specifications

Brand Mercedes-Benz
Model CLS
Generation CLS coupe (C219)
Type (Engine) CLS 500 V8 (306 Hp) 7G-TRONIC
Start of production September, 2004
End of production June, 2006
Powertrain Architecture Internal Combustion engine
Body type Coupe
Seats 4
Doors 4
Fuel consumption (economy) – urban (NEDC) 16.4-17.8 l/100 km (14.3 – 13.2 US mpg, 17.2 – 15.9 UK mpg, 6.1 – 5.6 km/l)
Fuel consumption (economy) – extra urban (NEDC) 8.3-8.9 l/100 km (28.3 – 26.4 US mpg, 34 – 31.7 UK mpg, 12 – 11.2 km/l)
Fuel consumption (economy) – combined (NEDC) 11.3-12.1 l/100 km (20.8 – 19.4 US mpg, 25 – 23.3 UK mpg, 8.8 – 8.3 km/l)
CO2 emissions (NEDC) 268-290 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 5.7 kg/Hp, 176.4 Hp/tonne
Weight-to-torque ratio 3.8 kg/Nm, 265.1 Nm/tonne
Power 306 Hp @ 5600 rpm
Power per litre 61.6 Hp/l
Torque 460 Nm @ 2700-4250 rpm (339.28 lb.-ft. @ 2700-4250 rpm)
Maximum engine speed 6300 rpm
Engine layout Front, Longitudinal
Engine Model/Code M 113.967
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 3
Fuel injection system Multi-port manifold injection
Engine aspiration Naturally aspirated engine
Valvetrain SOHC
Engine oil capacity 7.5 l (7.93 US qt | 6.6 UK qt)
Coolant 10.6 l (11.2 US qt | 9.33 UK qt)
Kerb Weight 1735 kg (3825.02 lbs.)
Max. weight 2275 kg (5015.52 lbs.)
Max load 540 kg (1190.5 lbs.)
Trunk (boot) space – minimum 495 l (17.48 cu. ft.)
Fuel tank capacity 80 l (21.13 US gal | 17.6 UK gal)
Max. roof load 100 kg (220.46 lbs.)
Length 4913 mm (193.43 in.)
Width 1873 mm (73.74 in.)
Width including mirrors 2059 mm (81.06 in.)
Height 1390 mm (54.72 in.)
Wheelbase 2854 mm (112.36 in.)
Front track 1593 mm (62.72 in.)
Rear (Back) track 1603 mm (63.11 in.)
Front overhang 894 mm (35.2 in.)
Rear overhang 1165 mm (45.87 in.)
Ride height (ground clearance) 144 mm (5.67 in.)
Drag coefficient (Cd) 0.30
Minimum turning circle (turning diameter) 11.21 m (36.78 ft.)
Approach angle 16.4°
Departure angle 16.2°
Ramp-over (brakeover) angle 12.2°
Drivetrain Architecture The Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheel Rear wheel drive
Number of gears and type of gearbox 7 gears, automatic transmission G-TRONIC
Front suspension Independent multi-link suspension, Transverse stabilizer, Air suspension
Rear suspension Independent multi-link suspension, Air suspension, Transverse stabilizer
Front brakes Ventilated discs, 330 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: 245/40 R18; 255/35 R19Rear wheel tires: 245/40 R18; 275/35 R18; 285/30 R19
Wheel rims size Front wheel rims: 8.5J x 18; 8.5J x 19Rear wheel rims: 8.5J x 18; 9.5J x 18; 9.5J x 19

Powertrain & Engine Architecture

The heart of the CLS 500 is the M113.967 4.966-liter (303.04 cu. in.) naturally aspirated V8 engine. This engine, a staple of Mercedes-Benz performance during the early 2000s, features a single overhead camshaft (SOHC) design per cylinder bank and three valves per cylinder (two intake, one exhaust). It utilizes multi-port fuel injection, delivering fuel directly into the intake ports. The M113 is renowned for its smooth power delivery and robust construction. The 7G-TRONIC automatic transmission, a seven-speed unit, was a significant advancement at the time, offering closer gear ratios for improved acceleration and fuel efficiency. This transmission featured a torque converter lock-up clutch to minimize slippage and enhance responsiveness. The engine produces 306 horsepower at 5600 rpm and 460 Nm (339.28 lb-ft) of torque between 2700 and 4250 rpm.

Driving Characteristics

The CLS 500’s 7G-TRONIC transmission is tuned for comfort and refinement rather than outright sportiness. While acceleration to 60 mph takes approximately 5.8 seconds, the focus is on providing a smooth and effortless driving experience. The automatic transmission’s programming prioritizes fuel economy and seamless gear changes, sometimes at the expense of immediate responsiveness. Compared to the CLS 350, the V8 offers significantly more power and torque, resulting in noticeably quicker acceleration and more confident passing maneuvers. However, it lacks the aggressive character of the CLS 63 AMG. The relatively high weight of the vehicle (1735 kg / 3825.02 lbs) does contribute to a feeling of substantial mass, but the air suspension helps to mitigate body roll and provide a comfortable ride.

Equipment & Trim Levels

The CLS 500 came standard with a generous array of features, reflecting its positioning as a near-luxury model. Standard equipment included leather upholstery, wood trim, automatic climate control, a premium sound system, and power-adjustable front seats with memory function. Optional extras included a panoramic sunroof, upgraded leather packages, a navigation system, and various driver-assistance features. The interior design emphasized elegance and sophistication, with a focus on high-quality materials and meticulous craftsmanship. Exterior features typically included 18-inch alloy wheels, although 19-inch wheels were available as an option.

Chassis & Braking

The C219 CLS utilized a sophisticated chassis design derived from the W211 E-Class. The front suspension featured an independent multi-link setup with a transverse stabilizer and air suspension, providing a comfortable and controlled ride. The rear suspension also employed an independent multi-link design with air suspension and a transverse stabilizer. Braking duties were handled by ventilated discs on all four wheels, with larger discs at the front (330mm) compared to the rear (300mm). Anti-lock braking system (ABS) was standard. The air suspension system allowed for adjustable ride height, further enhancing comfort and handling.

Market Reception & Comparison

The CLS 500 was generally well-received by automotive critics, who praised its elegant styling, comfortable ride, and powerful engine. However, some reviewers noted that the 7G-TRONIC transmission could feel hesitant at times, and the fuel economy was relatively poor (11.3-12.1 l/100 km). Compared to the CLS 350, the 500 offered a significant performance upgrade, but at a higher price point. The CLS 63 AMG, with its supercharged V8, provided a much more aggressive and performance-focused driving experience, but also came with a substantially higher price tag and increased running costs.

Legacy

The M113 V8 engine, found in the CLS 500, is known for its durability and reliability, provided it receives regular maintenance. The 7G-TRONIC transmission is also generally reliable, although some units may experience issues with the valve body or conductor plate over time. Today, the C219 CLS 500 represents an attractive entry point into the world of Mercedes-Benz luxury coupes. Well-maintained examples are becoming increasingly collectible, appealing to enthusiasts who appreciate the car’s unique styling and refined driving experience. While fuel economy is not a strong point, the CLS 500 offers a compelling combination of performance, comfort, and elegance that continues to resonate with drivers today.

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