Mercedes-Benz R-class Long (V251) R 300 CDI V6 (190 Hp) G-TRONIC


Overall Rating

7.2 / 10
Safety N/A / 5
Not Rated
Engine 3.8 / 5
Value 3.5 / 5
Performance 3.8 / 5
Comfort 4.5 / 5
People\'s Opinion N/A / 5
Not Rated

Mercedes-Benz R-class:

The Mercedes-Benz R-Class is a mid-size luxury MPV introduced by Mercedes-Benz in 2005 for the 2006 model year. Following the success of the smaller A- and B-Class MPVs, Mercedes in collaboration with coachbuilder Stola presented a concept vehicle, Vision GST , at the 2002 Detroit Auto Show and a second one, Vision R presented at the 2004 Detroit Auto Show, subsequently introducing the production version at 2005 New York International Auto Show. The R-Class was manufactured in Vance, Alabama until 2015 when its production was shifted to Mishawaka, Indiana for a smaller volume production until 2017....(Read more on Wikipedia)

Long (V251) Overview:

Mercedes-Benz R-class (Long (V251)). With 440 Nm of torque, it offers ample pulling power. At around 2245 kg, it’s on the heavier side. Rear‑wheel drive offers dynamic handling and sporty feedback. Acceleration is relatively slow (0–100 km/h in 9.8 s). The top speed reaches 210 km/h. A car with an extended rear cargo area, combining passenger comfort with increased storage. Seating for 5 makes it ideal for daily use.

R 300 CDI V6 (190 Hp) G-TRONIC Verdict:

Rating 4 stars

Performance Verdict

Adequate power for daily tasks, prioritizing efficiency over outright speed, suitable for relaxed driving.

Fuel Economy

Offers good fuel economy, making it an economical choice for a large vehicle.

Best Use Case: Economical family transport, city driving with occasional highway use.

Pros and Cons:

Pros:

  • • Exceptional interior space and comfort for all passengers
  • • Luxurious and well-appointed cabin materials
  • • Smooth ride quality, especially with optional air suspension
  • • Wide range of powerful and efficient engine options (especially diesels)
  • • Available 4MATIC all-wheel-drive for enhanced traction
  • • Unique styling that stands out from traditional SUVs/minivans

Cons:

  • • Polarizing exterior design not universally appealing
  • • Large dimensions can make city driving and parking challenging
  • • Higher fuel consumption for petrol V6 and V8 engines
  • • Potential reliability concerns with certain engines (M272 balance shaft) and air suspension
  • • Complex electronics can lead to costly repairs
  • • High depreciation on the used market, but also high maintenance costs

Specifications:

Specifications are compared to those of the previous generation(Long (V251): 2008 - 2010).

General:
Brand:Mercedes-Benz
Model:R-class
Generation:Long (V251)
Modification (Engine):R 300 CDI V6 (190 Hp) G-TRONIC
Start of production:2009
End of production:2010
Powertrain Architecture:Internal Combustion engine
Body type:Station wagon (estate)
Seats:5
Doors:5
Engine:
Engine systems:Particulate filter
Power:190 Hp @ 3800 rpm. Same horsepower
Power per litre:63.6 Hp/l [Same length.]
Torque:440 Nm @ 1400-2800 rpm.
Engine Model/Code:OM 642.950 More details about the engine OM 642.950
Engine displacement:2987
Number of cylinders:6
Engine configuration:V-engine
Fuel injection system:Diesel Commonrail
Engine aspiration:Turbocharger, Intercooler
Engine oil capacity:8.5 l
Coolant:10.1 l
Engine layout:Front, Longitudinal
Compression ratio:15.5:1
Performance:
Fuel Type:Diesel
Fuel consumption (economy) - combined:9 l/100 km
Emission standard:Euro 5
Acceleration 0 - 100 km/h:9.8 sec
Acceleration 0 - 62 mph:9.8 sec
Maximum speed:210 km/h
Weight-to-power ratio:11.8 kg/Hp, 84.6 Hp/tonne
Weight-to-torque ratio:5.1 kg/Nm, 196 Nm/tonne
Acceleration 0 - 60 mph:9.3 sec
Space:
Kerb Weight:2245
Max. weight:2860
Max load:615
Trunk (boot) space - maximum:2245 l
Permitted trailer load with brakes (12%):2100 kg
Fuel tank capacity:80 l
Permitted trailer load without brakes:750 kg
Size:
Length:5157 mm mm [Same length.]
Width:1922 mm mm [Same width.]
Height:1674 mm mm [Same height.]
Wheelbase:3215 mm mm [Same wheelbase.]
Front track:1661 mm
Rear (Back) track:1651 mm
Minimum turning circle (turning diameter):12.4 m [above average]
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheelRear wheel drive
Number of gears7
Transmission typeAutomatic
Gearbox typeG-TRONIC
Front brakesVentilated discs [Best for performance and cooling.]
Rear brakesDisc [above average]
Assisting systemsABS (Anti-lock braking system)
Steering typeSteering rack and pinion
Power steeringHydraulic Steering
Tires size235/65 R17
Wheel rims size17
Front suspensionDouble wishbone
Rear suspensionIndependent multi-link spring suspension with stabilizer

What’s the best feature of the Mercedes-Benz R-class? Tell us in the comments!