The Mercedes-Benz E 320, produced between July 1993 and August 1995, represented a significant step up in performance and refinement within the W124 E-Class range. Positioned as a mid-to-upper trim level, it offered a compelling blend of luxury, performance, and the renowned build quality Mercedes-Benz was known for. The E 320 was a key component of the W124’s final years, bridging the gap between the more economical models and the flagship E 420. It aimed to provide a more engaging driving experience without sacrificing the comfort expected of a Mercedes-Benz.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class (W124) |
| Type (Engine) | E 320 (220 Hp) |
| Start of production | July, 1993 |
| End of production | August, 1995 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 14.7 l/100 km (16 US mpg, 19.2 UK mpg) |
| Fuel consumption (extra urban) | 8.2 l/100 km (28.7 US mpg, 34.4 UK mpg) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.3 sec |
| Acceleration 0 – 62 mph | 8.3 sec |
| Acceleration 0 – 60 mph | 7.9 sec |
| Maximum speed | 235 km/h (146.02 mph) |
| Weight-to-power ratio | 6.8 kg/Hp |
| Weight-to-torque ratio | 4.8 kg/Nm |
| Power | 220 Hp @ 5500 rpm |
| Power per litre | 68.8 Hp/l |
| Torque | 310 Nm @ 3750 rpm (228.64 lb.-ft. @ 3750 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 104 E 32 / 104.992 |
| Engine displacement | 3199 cm3 (195.21 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 89.9 mm (3.54 in.) |
| Piston Stroke | 84 mm (3.31 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 | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Coolant | 9 l (9.51 US qt | 7.92 UK qt) |
| Kerb Weight | 1490 kg (3284.89 lbs.) |
| Max. weight | 2050 kg (4519.48 lbs.) |
| Max load | 560 kg (1234.59 lbs.) |
| Trunk (boot) space – minimum | 520 l (18.36 cu. ft.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 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 | 1501 mm (59.09 in.) |
| Rear (Back) track | 1491 mm (58.7 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 | 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 E 320 was the M104.992, a 3.2-liter inline-six engine. This engine was a significant departure from the earlier, less sophisticated inline-sixes used in previous E-Class models. The M104 featured a double overhead camshaft (DOHC) design with four valves per cylinder, contributing to its improved breathing and power output. It utilized Bosch Motronic fuel injection, a multi-port system that precisely controlled fuel delivery for optimal combustion. The engine’s robust construction and relatively simple design (compared to later Mercedes engines) contributed to its longevity and reliability. The 5-speed manual transmission was standard, providing a direct connection to the engine’s power. While an automatic transmission was available, the manual was favored by enthusiasts for its responsiveness.
Driving Characteristics
The E 320 offered a noticeably more spirited driving experience than the four-cylinder or 2.8-liter six-cylinder E-Class models. The 220 horsepower and 229 lb-ft of torque provided ample power for both comfortable cruising and brisk acceleration. The 0-60 mph time of around 7.9 seconds was respectable for the early 1990s. The manual transmission allowed for precise control, while the automatic, though smooth, felt somewhat less engaging. The E 320’s suspension, tuned for comfort, still provided a reasonably controlled ride, although it wasn’t as sporty as some of its competitors. The rear-wheel drive configuration offered a balanced feel, contributing to confident handling.
Equipment & Trim Levels
The E 320 came standard with a generous array of features, reflecting its position as a premium model. These included power windows, power locks, a sunroof, and air conditioning. Interior upholstery was typically a high-quality cloth, with leather options available. The dashboard featured wood trim and a clear, functional layout. Optional extras included a premium sound system, heated seats, and automatic climate control. The E 320’s interior was designed for comfort and refinement, providing a luxurious environment for both driver and passengers.
Chassis & Braking
The W124 chassis was renowned for its solidity and crashworthiness. The E 320 benefited from a well-engineered suspension system, featuring independent suspension at all four wheels. The front suspension utilized wishbones, while the rear employed a multi-link setup. Braking duties were handled by ventilated discs at the front and solid discs at the rear, with ABS (Anti-lock Braking System) standard. The E 320’s braking performance was adequate for its weight and performance level, providing confident stopping power in most conditions.
Market Reception & Comparison
The E 320 was generally well-received by automotive critics. It was praised for its smooth engine, comfortable ride, and high-quality interior. However, some critics noted that it wasn’t as sporty as some of its rivals, such as the BMW 5 Series. Compared to the E 280, the E 320 offered a significant performance boost, but at a higher price point. The E 420, with its larger V8 engine, provided even more power, but was considerably more expensive. The E 320 struck a good balance between performance, luxury, and price, making it a popular choice for buyers seeking a refined and capable mid-size sedan.
Legacy
The M104 engine, found in the E 320, has earned a reputation for exceptional reliability and longevity. With proper maintenance, these engines can easily exceed 200,000 miles. The W124 chassis is also known for its durability, making these cars relatively resistant to rust and mechanical issues. Today, the E 320 is a sought-after classic, appreciated by enthusiasts for its build quality, driving experience, and timeless design. Well-maintained examples command a premium in the used car market, and the car remains a testament to Mercedes-Benz’s engineering prowess during the 1990s. Parts availability is generally good, although some specific components may be becoming increasingly difficult to find.
