Mercedes-Benz B-class W245 B 180 CDI (109 Hp)


Overall Rating

7.4 / 10
Safety 5.0 / 5
Engine 2.5 / 5
Value 3.5 / 5
Performance 3.5 / 5
Comfort 4.0 / 5
People\'s Opinion N/A / 5
Not Rated

Mercedes-Benz B-class:

The Mercedes-Benz B-Class is a subcompact executive car manufactured and marketed by Mercedes-Benz since 2005. Based on the A-Class with larger dimensions, the European New Car Assessment Programme classifies it as a small MPV.
Mercedes-Benz had presented a concept car Vision B Compact Sports Tourer at the 2004 Paris Motor Show. The concept previewed some features that would be available on the production B-Class. The Vision B was based on the layered platform, so that the drivetrain would be placed partly in front of and underneath the passengers....(Read more on Wikipedia)

W245 Overview:

Mercedes-Benz B-class (W245). With 250 Nm of torque, it offers ample pulling power. It has moderate fuel consumption (~7.4 l/100km). With a weight of 1360 kg, it falls in the mid‑range. Front‑wheel drive delivers efficiency and easy handling. Acceleration is relatively slow (0–100 km/h in 11.3 s). The top speed reaches 183 km/h. A multi-purpose vehicle designed to transport passengers with ample interior space. Seating for 5 makes it ideal for daily use.

Safety Rating
Euro NCAP Year 2005
Adult Occupant 32 points
Stars 5
Expert Note:
The W245 B-class achieved an excellent 5-star rating for adult occupant protection, demonstrating strong passive safety performance for its time.

B 180 CDI (109 Hp) Verdict:

Rating 4 stars

Performance Verdict

Offers a good balance of power and torque for daily driving, feeling responsive and capable on the road.

Fuel Economy

Excellent fuel efficiency, making it a very economical choice for mixed driving and longer journeys.

Best Use Case: Mixed Driving / Commuting

Pros and Cons:

Pros:

  • • Spacious and versatile interior with flexible seating arrangements
  • • Comfortable ride quality, typical of Mercedes-Benz
  • • Excellent Euro NCAP safety rating for adult occupants
  • • Economical and strong diesel engine options available
  • • Good build quality and premium feel for its class

Cons:

  • • Entry-level petrol engines can feel underpowered
  • • Autotronic (CVT) gearbox can be prone to reliability issues and is not the most engaging
  • • Some interior plastics feel less premium than other Mercedes models
  • • Not the most dynamic or engaging car to drive
  • • Higher running costs compared to some rivals

Specifications:

Specifications are compared to those of the previous generation(W247: 2020 - 2022).

General:
Brand:Mercedes-Benz
Model:B-class
Generation:W245
Modification (Engine):B 180 CDI (109 Hp)
Start of production:April, 2005
End of production:April, 2008
Powertrain Architecture:Internal Combustion engine
Body type:MPV
Seats:5
Doors:5
Engine:
Engine systems:Particulate filter
Power:109 Hp @ 4200 rpm. Same horsepower
Power per litre:54.7 Hp/l [149mm less]
Torque:250 Nm @ 1600-2600 rpm.
Engine Model/Code:OM 640.940 More details about the engine OM 640.940
Engine displacement:1991
Number of cylinders:4
Engine configuration:Inline
Number of valves per cylinder:4
Fuel injection system:Diesel Commonrail
Engine aspiration:Turbocharger, Intercooler
Valvetrain:DOHC
Engine oil capacity:5.8 l
Coolant:8 l
Engine layout:Front, Transverse
Cylinder Bore:83 mm
Piston Stroke:92 mm
Compression ratio:18:1
Performance:
Fuel Type:Diesel
Fuel consumption (economy) - urban:7.2-7.6 l/100 km
Fuel consumption (economy) - extra urban:4.6-4.7 l/100 km
Fuel consumption (economy) - combined (NEDC):5.6-5.8 l/100 km
Fuel consumption (economy) - urban (NEDC):7.2-7.6 l/100 km
Fuel consumption (economy) - extra urban (NEDC):4.6-4.7 l/100 km
Fuel consumption (economy) - combined:5.6-5.8 l/100 km
Emission standard:Euro 4
Acceleration 0 - 100 km/h:11.3 sec
Acceleration 0 - 62 mph:11.3 sec
Maximum speed:183 km/h
Weight-to-power ratio:12.5 kg/Hp, 80.1 Hp/tonne
Weight-to-torque ratio:5.4 kg/Nm, 183.8 Nm/tonne
Acceleration 0 - 60 mph:10.7 sec
Space:
Kerb Weight:1360
Max. weight:1880
Max. roof load:75 kg
Max load:520
Trunk (boot) space - maximum:2245 l
Trunk (boot) space - minimum:544 l
Permitted trailer load with brakes (12%):1500 kg
Fuel tank capacity:54 l
Permitted trailer load without brakes:715 kg
Permitted towbar download:75 kg
Size:
Length:4270 mm [149mm less]
Width:1777 mm [19mm less]
Height:1604 mm [42mm more]
Wheelbase:2778 mm [49mm more]
Width including mirrors:1975 mm
Front track:1552 mm
Rear (Back) track:1547 mm
Minimum turning circle (turning diameter):11.95 m [above average]
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the front wheels of the vehicle.
Drive wheelFront wheel drive
Number of gears6
Transmission typeManual
Front brakesVentilated discs, 288x25 mm [Best for performance and cooling.]
Rear brakesDisc, 258x8 mm [above average]
Assisting systemsABS (Anti-lock braking system)
Steering typeSteering rack and pinion
Power steeringElectric Steering
Tires size205/55 R16
Wheel rims size6J x 16
Front suspensionIndependent type McPherson, Transverse stabilizer
Rear suspensionTransverse stabilizer, Coil spring

Fuel, speed, and comfort: How does the Mercedes-Benz B-class rank in your book?