The Mercedes-Benz C124 300 CE-24, produced from August 1989 to November 1992, represents a high-performance variant within the W124 coupe (C124) family. Positioned as the flagship coupe offering, it bridged the gap between luxury grand touring and sporty performance. The “-24” designation refers to its 24-valve cylinder head, a key upgrade over earlier 300CE models. This model was primarily sold in Europe and represents a significant evolution in Mercedes-Benz’s coupe design and engineering during the late 1980s and early 1990s.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | W124 |
| Generation | C124 (facelift 1989) |
| Type (Engine) | 300 CE-24 (220 Hp) |
| Start of production | August, 1989 |
| End of production | November, 1992 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 14.8 l/100 km (15.9 US mpg, 19.1 UK mpg, 6.8 km/l) |
| Fuel consumption (extra urban) | 8.1 l/100 km (29 US mpg, 34.9 UK mpg, 12.3 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.0 sec |
| Acceleration 0 – 62 mph | 8.0 sec |
| Acceleration 0 – 60 mph | 7.6 sec |
| Maximum speed | 237 km/h (147.26 mph) |
| Weight-to-power ratio | 6.7 kg/Hp, 148.6 Hp/tonne |
| Weight-to-torque ratio | 5.6 kg/Nm, 179.1 Nm/tonne |
| Power | 220 Hp @ 6400 rpm |
| Power per litre | 74.3 Hp/l |
| Torque | 265 Nm @ 4600 rpm (195.45 lb.-ft. @ 4600 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 104 E 30 / 104.980 |
| Engine displacement | 2960 cm3 (180.63 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 88.5 mm (3.48 in.) |
| Piston Stroke | 80.2 mm (3.16 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 | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant | 9 l (9.51 US qt | 7.92 UK qt) |
| Kerb Weight | 1480 kg (3262.84 lbs.) |
| Max. weight | 1930 kg (4254.92 lbs.) |
| Max load | 450 kg (992.08 lbs.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Length | 4655 mm (183.27 in.) |
| Width | 1740 mm (68.5 in.) |
| Height | 1394 mm (54.88 in.) |
| Wheelbase | 2715 mm (106.89 in.) |
| Front track | 1501 mm (59.09 in.) |
| Rear track | 1491 mm (58.7 in.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 5 gears, manual transmission |
| Front suspension | Wishbone |
| Rear suspension | Independent multi-link suspension |
| 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: 195/65 R15Rear wheel tires: 195/65 R15 |
| Wheel rims size | Front wheel rims: 6.5J x 15Rear wheel rims: 6.5J x 15 |
Powertrain & Engine Architecture
The heart of the 300 CE-24 is the M104.980 3.0-liter inline-six engine. This engine is a significant departure from the earlier M103 engine, featuring a four-valve-per-cylinder (24-valve) cylinder head. This design allowed for improved breathing and higher engine speeds, resulting in the increased power output of 220 horsepower. The engine utilizes Bosch Motronic fuel injection and a dual overhead camshaft (DOHC) valvetrain. The M104 engine is known for its smoothness and durability. The 300 CE-24 was exclusively offered with a five-speed manual transmission, providing a more engaging driving experience compared to the automatic options available in other 300CE models. This transmission was chosen to handle the increased power and torque of the 24-valve engine.
Driving Characteristics
The 300 CE-24 delivers a refined yet sporty driving experience. The 220 hp engine provides brisk acceleration, with a 0-60 mph time of around 7.6 seconds. The five-speed manual transmission allows for precise control over the engine’s power band. The engine’s torque curve is relatively flat, providing good responsiveness across a wide range of engine speeds. Compared to the standard 300CE, the 300 CE-24 feels noticeably more powerful and eager to rev. While not a dedicated sports car, the 300 CE-24 offers a compelling blend of performance and comfort, making it a capable grand tourer.
Equipment & Trim Levels
The 300 CE-24 was generally well-equipped, reflecting its position as the top-of-the-line coupe. Standard features included leather upholstery, power windows, power locks, a sunroof, and an upgraded sound system. Optional extras included automatic climate control, heated seats, and a premium audio system. The interior trim was typically finished in wood or burled walnut, adding to the car’s luxurious ambiance. The exterior featured color-matched bumpers and side skirts, along with alloy wheels.
Chassis & Braking
The C124 chassis features an independent suspension at all four wheels, providing a comfortable ride and good handling. The front suspension utilizes wishbones, while the rear suspension employs a multi-link design. The 300 CE-24 is equipped with ventilated disc brakes at the front and solid disc brakes at the rear. Anti-lock braking system (ABS) was standard, enhancing safety and control. The steering is a recirculating ball system with hydraulic power assistance, providing a good balance of feel and ease of use.
Market Reception & Comparison
The 300 CE-24 was well-received by automotive critics, who praised its performance, handling, and luxurious interior. It was often compared to other high-performance coupes of the era, such as the BMW 6 Series and the Porsche 944. While the BMW offered a more overtly sporty driving experience, the Mercedes-Benz provided a more refined and comfortable ride. The 300 CE-24’s fuel economy was reasonable for a car of its performance, averaging around 19 mpg in combined driving. Reliability was generally good, although maintenance costs could be high due to the car’s complex engineering.
Legacy
The 300 CE-24 remains a desirable classic car today, appreciated for its combination of performance, luxury, and build quality. The M104 engine is known for its durability, and well-maintained examples can still provide years of reliable service. However, like all classic Mercedes-Benz models, the 300 CE-24 requires regular maintenance and can be expensive to repair. The 24-valve engine and five-speed manual transmission make this variant particularly sought after by enthusiasts. The C124 300 CE-24 represents a high point in Mercedes-Benz coupe design and engineering, and it continues to be a rewarding car to own and drive.
