Mercedes-Benz S-class W221 S 320 CDI (235 Hp) 4MATIC 7G-TRONIC


Overall Rating

8 / 10
Safety N/A / 5
Not Rated
Engine 4.0 / 5
Value 3.8 / 5
Performance 4.3 / 5
Comfort 5.0 / 5
People\'s Opinion N/A / 5
Not Rated

Mercedes-Benz S-class:

The Mercedes-Benz S-Class, formerly known as "special class" , is a series of full-sized luxury sedans and coupés produced by the German automaker Mercedes-Benz. The S-Class is the designation for top-of-the-line Mercedes-Benz models and was officially introduced in 1972 with the W116, and has remained in use ever since. The S-Class is the flagship vehicle for Mercedes-Benz, being positioned above the other Mercedes-Benz models.
The S-Class has debuted many of the company's latest innovations, including drivetrain technologies, interior features, and safety systems. The S-Class has ranked as the world's best-selling luxury sedan. In automotive terms, Sonderklasse refers to "a specially outfitted car. " Although used colloquially for decades, following its official application in 1972, six generations of officially named S-Klasse sedans have been produced....(Read more on Wikipedia)

W221 Overview:

Mercedes-Benz S-class (W221). With 540 Nm of torque, it offers ample pulling power. With a weight of 1950 kg, it falls in the mid‑range. All‑wheel drive provides excellent grip, ideal for off‑road use. Acceleration is good (0–100 km/h in 7.8 s). The top speed reaches 250 km/h. A four-door car with a separate trunk, ideal for families and daily commuting. Seating for 5 makes it ideal for daily use.

Safety Rating
Not rated
Euro NCAP Year N/A
Adult Occupant N/A
Stars N/A
Expert Note:
The Mercedes-Benz S-Class W221 generation was not officially tested by Euro NCAP. However, it was equipped with numerous advanced safety features for its time, including PRE-SAFE, multiple airbags, and robust structural integrity, ensuring high levels of passive and active safety.

S 320 CDI (235 Hp) 4MATIC 7G-TRONIC Verdict:

Rating 4 stars

Performance Verdict

Good torque and adequate power for a diesel, with the added benefit of 4MATIC traction for improved stability.

Fuel Economy

Very good fuel economy for an AWD luxury sedan, though slightly less efficient than its RWD counterpart.

Best Use Case: All-weather economical luxury, ideal for drivers in colder climates or those needing extra grip with good fuel efficiency.

Pros and Cons:

Pros:

  • • Exceptional ride comfort and luxurious interior
  • • Advanced technology and safety features for its era
  • • Wide range of powerful and refined engines, including efficient diesels
  • • Timeless, elegant design
  • • Excellent build quality and prestige

Cons:

  • • High running costs, especially for V8 petrol and AMG models
  • • Complex electronics can lead to expensive repairs
  • • Air suspension (Airmatic) can be a costly maintenance item
  • • Depreciation can be significant, though offers good used value
  • • Some interior plastics may show wear over time

Specifications:

Specifications are compared to those of the previous generation(Long (V221): 2005 - 2009).

General:
Brand:Mercedes-Benz
Model:S-class
Generation:W221
Modification (Engine):S 320 CDI (235 Hp) 4MATIC 7G-TRONIC
Start of production:2006
End of production:2009
Powertrain Architecture:Internal Combustion engine
Body type:Sedan
Seats:5
Doors:4
Engine:
Power:235 Hp @ 3600 rpm. Same horsepower
Power per litre:78.7 Hp/l [130mm less]
Torque:540 Nm @ 1600 rpm.
Engine Model/Code:OM 642.930 More details about the engine OM 642.930
Engine displacement:2987
Number of cylinders:6
Engine configuration:V-engine
Number of valves per cylinder:4
Fuel injection system:Diesel Commonrail
Engine aspiration:Turbocharger, Intercooler
Valvetrain:DOHC
Engine oil capacity:8.5 l
Coolant:7.5 l
Engine layout:Front, Longitudinal
Cylinder Bore:83 mm
Piston Stroke:92 mm
Compression ratio:18:1
Performance:
Fuel Type:Diesel
Fuel consumption (economy) - urban:12-12.2 l/100 km
Fuel consumption (economy) - extra urban:7.1-7.3 l/100 km
Fuel consumption (economy) - combined:8.7-8.9 l/100 km
Acceleration 0 - 100 km/h:7.8 sec
Acceleration 0 - 62 mph:7.8 sec
Maximum speed:250 km/h
Weight-to-power ratio:8.3 kg/Hp, 120.5 Hp/tonne
Weight-to-torque ratio:3.6 kg/Nm, 276.9 Nm/tonne
Acceleration 0 - 60 mph:7.4 sec
Space:
Kerb Weight:1950
Max. weight:2625
Max load:675
Trunk (boot) space - minimum:560 l
Fuel tank capacity:90 l
Size:
Length:5079 mm [130mm less]
Width:1871 mm [1mm less]
Height:1473 mm [Same height.]
Wheelbase:3035 mm [130mm less]
Width including mirrors:2115 mm
Front track:1604 mm
Rear (Back) track:1606 mm
Front overhang:871 mm
Rear overhang:1173 mm
Minimum turning circle (turning diameter):11.8 m [above average]
Powertrain:
Drive wheelAll wheel drive (4x4)
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
Tires size235/55 R17
Wheel rims size8J x 17
Front suspensionAir suspension
Rear suspensionAir suspension

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