The Mercedes-Benz E 250 CDI BlueEFFICIENCY 4MATIC, produced from February to August 2011, represented a key variant within the W212 E-Class range. Positioned as a fuel-efficient, all-wheel-drive option, it aimed to balance luxury with practicality for European and international markets. This model combined a turbocharged diesel engine with a seven-speed automatic transmission and Mercedes’ 4MATIC all-wheel-drive system, offering a compelling package for drivers seeking refinement and capability. It sat in the mid-range of the W212 lineup, offering a step up from the base E 200 CDI while remaining more accessible than the higher-performance E 350 models.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | E-class |
| Generation | E-class (W212) |
| Type | E 250 CDI BlueEFFICIENCY (204 Hp) 4MATIC 7G-TRONIC |
| Start of production | February, 2011 |
| End of production | August, 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 8-8.4 l/100 km (29.4 – 28 US mpg) |
| Fuel consumption (extra urban) | 5.3-5.8 l/100 km (44.4 – 40.6 US mpg) |
| Fuel consumption (combined) | 6.3-6.7 l/100 km (37.3 – 35.1 US mpg) |
| CO2 emissions | 164-176 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.9 sec |
| Acceleration 0 – 62 mph | 7.9 sec |
| Acceleration 0 – 60 mph | 7.5 sec |
| Maximum speed | 238 km/h (147.89 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 8.6 kg/Hp |
| Weight-to-torque ratio | 3.5 kg/Nm |
| Power | 204 Hp @ 4200 rpm |
| Torque | 500 Nm @ 1600-1800 rpm (368.78 lb.-ft. @ 1600-1800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 651.924 |
| Engine displacement | 2143 cm3 (130.77 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 99 mm (3.9 in.) |
| Compression ratio | 16.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | BiTurbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant capacity | 8.6 l (9.09 US qt | 7.57 UK qt) |
| Kerb Weight | 1745 kg (3847.07 lbs.) |
| Max. weight | 2365 kg (5213.93 lbs.) |
| Max load | 620 kg (1366.87 lbs.) |
| Trunk (boot) space (minimum) | 540 l (19.07 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal | 12.98 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load (with brakes) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load (without brakes) | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 84 kg (185.19 lbs.) |
| Length | 4868 mm (191.65 in.) |
| Width | 1854 mm (72.99 in.) |
| Width including mirrors | 2071 mm (81.54 in.) |
| Height | 1464 mm (57.64 in.) |
| Wheelbase | 2874 mm (113.15 in.) |
| Front track | 1600 mm (62.99 in.) |
| Rear track | 1619 mm (63.74 in.) |
| Front overhang | 841 mm (33.11 in.) |
| Rear overhang | 1153 mm (45.39 in.) |
| Drag coefficient (Cd) | 0.26 |
| Minimum turning circle | 11.25 m (36.91 ft.) |
| Drivetrain Architecture | All wheel drive (4×4) |
| Number of gears | 7 |
| Gearbox type | Automatic transmission G-TRONIC |
| Front suspension | Coil spring, Independent multi-link suspension, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs, 322 mm |
| Rear brakes | Disc, 300 mm |
Powertrain & Engine Architecture
The E 250 CDI BlueEFFICIENCY utilized the OM 651.924 2.1-liter inline-four diesel engine. This engine was a cornerstone of Mercedes-Benz’s diesel offerings, known for its robust construction and efficiency. It featured common-rail direct injection, delivering fuel at extremely high pressure for optimized combustion. The engine employed a variable geometry turbocharger and an intercooler to boost power and torque. The ‘BlueEFFICIENCY’ designation indicated the inclusion of technologies aimed at reducing emissions and improving fuel economy, including a diesel particulate filter (DPF) and optimized engine management. The engine produced 204 horsepower at 4200 rpm and a substantial 368 lb-ft of torque between 1600 and 1800 rpm. This torque output was a key characteristic, providing strong pulling power from low engine speeds. The engine was paired with Mercedes-Benz’s 7G-TRONIC seven-speed automatic transmission, known for its smooth shifts and wide gear ratios. This transmission was designed to optimize fuel efficiency and provide responsive acceleration.
Driving Characteristics
The E 250 CDI 4MATIC offered a comfortable and refined driving experience. The high torque output of the diesel engine meant that strong acceleration was readily available, particularly in the mid-range. While not a sports car, the E 250 CDI could achieve 0-60 mph in approximately 7.5 seconds. The 7G-TRONIC transmission contributed to smooth gear changes, minimizing disruptions during acceleration. The 4MATIC all-wheel-drive system provided enhanced traction, particularly in adverse weather conditions. Compared to the rear-wheel-drive E 250 CDI, the 4MATIC version offered greater stability and confidence. Compared to the more powerful E 350 models, the E 250 CDI prioritized fuel economy and relaxed cruising over outright performance. The manual transmission versions of the E 250 CDI offered slightly quicker acceleration and a more engaging driving experience, but the automatic was favored by many for its convenience and ease of use.
Equipment & Trim Levels
The E 250 CDI BlueEFFICIENCY 4MATIC typically came standard with a comprehensive list of features, reflecting its position as a premium vehicle. Standard equipment included automatic climate control, a multi-function steering wheel, power-adjustable front seats, and a high-quality audio system. Safety features were also abundant, including ABS, ESP, and multiple airbags. Optional extras included leather upholstery, a sunroof, a navigation system, and advanced driver-assistance systems such as adaptive cruise control and lane-keeping assist. Interior trim levels varied, with options for wood or aluminum accents. The standard upholstery was typically a high-quality cloth, with leather being a popular upgrade.
Chassis & Braking
The W212 E-Class featured a sophisticated chassis design. The front suspension utilized a multi-link setup with coil springs and a stabilizer bar, providing a comfortable ride and precise handling. The rear suspension also employed a multi-link design, further enhancing ride quality and stability. The E 250 CDI 4MATIC was equipped with ventilated disc brakes at the front and solid discs at the rear. ABS (Anti-lock Braking System) and ESP (Electronic Stability Program) were standard, providing enhanced braking performance and stability. The suspension was tuned to balance comfort and handling, offering a composed ride even on uneven surfaces.
Market Reception & Comparison
The E 250 CDI BlueEFFICIENCY 4MATIC was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined interior. The combination of all-wheel drive and a torquey diesel engine made it a practical choice for drivers in regions with challenging weather conditions. Compared to other trims in the W212 lineup, the E 250 CDI offered a compelling balance of performance, economy, and price. It was more affordable than the E 350 models, while still providing a luxurious and capable driving experience. Fuel economy was a key strength, with combined fuel consumption figures ranging from 37.3 to 35.1 US mpg. Reliability was generally good, although diesel particulate filters could require occasional maintenance.
Legacy
The OM 651 engine family, including the 2.1-liter variant used in the E 250 CDI, has proven to be remarkably durable and reliable. These engines are known for their longevity and relatively low maintenance costs. In the used car market, the W212 E 250 CDI 4MATIC remains a popular choice for buyers seeking a comfortable, fuel-efficient, and well-equipped sedan. While older examples may require some maintenance, the robust engine and transmission are generally capable of covering high mileage. The E 250 CDI BlueEFFICIENCY 4MATIC represents a significant step in Mercedes-Benz’s efforts to combine luxury with efficiency, and it continues to be a respected and sought-after vehicle today.
