The Mercedes-Benz E 420, produced between July 1993 and June 1995, represented the pinnacle of performance within the W124 E-Class sedan range. Positioned as the flagship model, it offered a significant step up in power and refinement compared to the more common four and six-cylinder variants. The E 420 was a late-production addition to the W124 series, intended to provide a luxurious and powerful option for buyers seeking a true grand touring experience. It was primarily sold in North America and select European markets, catering to customers who desired a blend of Mercedes-Benz engineering and robust V8 performance.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class (W124) |
| Type (Engine) | E 420 V8 (279 Hp) Automatic |
| Start of production | July, 1993 |
| End of production | June, 1995 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (combined) | 11.8 l/100 km (19.9 US mpg, 23.9 UK mpg, 8.5 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7.2 sec |
| Acceleration 0 – 62 mph | 7.2 sec |
| Acceleration 0 – 60 mph | 6.8 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Weight-to-power ratio | 5.8 kg/Hp, 172.2 Hp/tonne |
| Weight-to-torque ratio | 4.1 kg/Nm, 246.9 Nm/tonne |
| Power | 279 Hp @ 5700 rpm |
| Power per litre | 66.5 Hp/l |
| Torque | 400 Nm @ 3900 rpm (295.02 lb.-ft. @ 3900 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 119.975 |
| Engine displacement | 4196 cm3 (256.06 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 92 mm (3.62 in.) |
| Piston Stroke | 78.9 mm (3.11 in.) |
| Compression ratio | 11:1 |
| 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 | 12.5 l (13.21 US qt | 11 UK qt) |
| Kerb Weight | 1620 kg (3571.49 lbs.) |
| Max. weight | 2170 kg (4784.03 lbs.) |
| Max load | 550 kg (1212.54 lbs.) |
| Trunk (boot) space – minimum | 520 l (18.36 cu. ft.) |
| Fuel tank capacity | 90 l (23.78 US gal | 19.8 UK gal) |
| Length | 4740 mm (186.61 in.) |
| Width | 1740 mm (68.5 in.) |
| Height | 1430 mm (56.3 in.) |
| Wheelbase | 2800 mm (110.24 in.) |
| Front track | 1511 mm (59.49 in.) |
| Rear (Back) track | 1497 mm (58.94 in.) |
| 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 | 4 gears, automatic transmission |
| Front suspension | Spring Strut, Coil spring, Wishbone |
| Rear suspension | Independent multi-link suspension, Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic Steering |
| Tires size | 215/55 ZR16 |
| Wheel rims size | 7 J x 16 H 2 |
Powertrain & Engine Architecture
The heart of the E 420 was the M119.975 4.2-liter V8 engine. This engine was a significant departure from the inline-six and smaller V6 engines offered in other W124 models. The M119 featured a cast-iron block with aluminum cylinder heads, a dual overhead camshaft (DOHC) design with four valves per cylinder, and Bosch Motronic fuel injection. This configuration allowed for a broad torque curve and a relatively high power output for its displacement. The engine produced 279 horsepower at 5700 rpm and 295 lb-ft of torque at 3900 rpm. The engine’s design prioritized smoothness and refinement over outright performance, reflecting Mercedes-Benz’s focus on a luxurious driving experience. The E 420 exclusively came with a four-speed automatic transmission (722.3), chosen for its smooth shifting and suitability for long-distance cruising. This transmission was known for its durability but lacked the efficiency of more modern automatic gearboxes.
Driving Characteristics
The E 420 offered a distinctly different driving experience compared to its six-cylinder siblings. The V8 engine provided effortless acceleration and a relaxed cruising demeanor. While not a sports car, the E 420 could reach 60 mph in around 6.8 seconds and had a electronically limited top speed of 155 mph. The automatic transmission, while smooth, did result in some power loss compared to a manual transmission. The gear ratios were optimized for comfortable highway driving, but could feel slightly spaced apart during more spirited driving. The car’s weight (approximately 3571 lbs) was noticeable, but the V8’s torque helped to overcome this. The suspension, tuned for comfort, provided a smooth ride, but body roll was present during cornering.
Equipment & Trim Levels
The E 420 was generously equipped, reflecting its position as the range-topping model. Standard features included leather upholstery, power-adjustable front seats with memory function, automatic climate control, a premium sound system, and a sunroof. Wood trim adorned the interior, adding to the luxurious ambiance. Optional extras included heated seats, a rear sunshade, and upgraded audio systems. The exterior featured color-matched bumpers and side skirts, and alloy wheels were standard. The E 420 was offered with a limited range of exterior colors, typically consisting of metallic paints and classic Mercedes-Benz hues.
Chassis & Braking
The E 420 utilized the W124’s robust chassis, featuring independent suspension all around. The front suspension employed coil springs and wishbones, while the rear utilized a multi-link independent suspension system. This setup provided a comfortable ride and good handling characteristics. Braking duties were handled by ventilated disc brakes on all four wheels, assisted by an Anti-lock Braking System (ABS). The braking system was effective, providing ample stopping power for the car’s weight and performance. The E 420 featured a hydraulic power steering system, offering a good balance of assistance and feedback.
Market Reception & Comparison
The E 420 was generally well-received by automotive critics, who praised its smooth engine, luxurious interior, and comfortable ride. However, some critics noted its relatively high price and fuel consumption. Compared to the E 320 (with its inline-six engine), the E 420 offered significantly more power and refinement, but at a higher cost. The E 420 was also more expensive to maintain due to the complexity of the V8 engine and its associated components. Fuel economy was considerably lower than the six-cylinder models, averaging around 19.9 US mpg in combined driving.
Legacy
The E 420 remains a sought-after classic Mercedes-Benz, particularly among enthusiasts who appreciate its combination of luxury, performance, and durability. The M119 V8 engine is known for its reliability when properly maintained, although age-related issues such as oil leaks and sensor failures are common. Parts availability is generally good, but can be expensive. Today, well-maintained E 420s command a premium in the used car market, appealing to collectors and drivers who seek a refined and powerful classic sedan. The E 420 represents a high point in Mercedes-Benz engineering and a testament to the brand’s commitment to quality and luxury.
