Mercedes-Benz W109 SEL 300 SEL (170 Hp)


Overall Rating

8.2 / 10
Safety N/A / 5
Not Rated
Engine 4.8 / 5
Value 4.0 / 5
Performance 4.0 / 5
Comfort 4.5 / 5
People\'s Opinion N/A / 5
Not Rated

Mercedes-Benz W109:

The Mercedes-Benz W 108 and W 109 are luxury cars produced by Mercedes-Benz from 1965 through to 1972 to succeed the W 111 and W 112 "fintail" sedans. The cars were successful in West Germany and in export markets including North America and Southeast Asia. During the seven-year run, a total of 383,072 units were manufactured. Some publications mention 383,361 units.
As the W 108 and W 109 were only available as 4-door models, similarly squarish Bracq-designed 2-door W 111 and W 112 coupés and cabriolets filled those niches, and are often mistaken for W 108/W 109 two-doors....(Read more on Wikipedia)

SEL Overview:

Mercedes-Benz W109 (SEL). With 249 Nm of torque, it offers ample pulling power. With a weight of 1640 kg, it falls in the mid‑range. Rear‑wheel drive offers dynamic handling and sporty feedback. Acceleration is relatively slow (0–100 km/h in 11.2 s). The top speed reaches 190 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:
As a classic vehicle from the late 1960s, the Mercedes-Benz W109 SEL was not subjected to modern Euro NCAP safety tests. Its safety features are rudimentary by contemporary standards, focusing on robust construction rather than advanced occupant protection systems.

300 SEL (170 Hp) Verdict:

Rating 3 stars

Performance Verdict

Adequate performance for a luxury sedan, providing smooth power delivery suitable for daily driving and comfortable journeys.

Fuel Economy

More reasonable fuel consumption compared to the V8s, making it a more practical and economical choice for its class.

Best Use Case: Balanced City/Highway

Pros and Cons:

Pros:

  • • Exceptional luxury and build quality for its time
  • • Powerful engine options, especially the 6.3 V8
  • • Advanced air suspension provides superior ride comfort
  • • Timeless design and strong classic car appeal
  • • Excellent highway cruiser with refined driving dynamics

Cons:

  • • High fuel consumption, particularly for V8 models
  • • Complex air suspension can be expensive to maintain
  • • Parts availability can be challenging and costly for specific components
  • • Lack of modern safety features compared to contemporary vehicles
  • • Can be prone to rust if not well-maintained

Specifications:

Specifications are compared to those of the previous generation(SEL: May, 1971 - October, 1972).

General:
Brand:Mercedes-Benz
Model:W109
Generation:SEL
Modification (Engine):300 SEL (170 Hp)
Start of production:September, 1965
End of production:December, 1967
Powertrain Architecture:Internal Combustion engine
Body type:Sedan
Seats:5
Doors:4
Engine:
Power:170 Hp @ 5400 rpm. Same horsepower
Power per litre:56.7 Hp/l [Same length.]
Torque:249 Nm @ 4000 rpm.
Engine Model/Code:M 189 VII / 189.988 More details about the engine M 189 VII / 189.988
Engine displacement:2996
Number of cylinders:6
Engine configuration:Inline
Number of valves per cylinder:2
Fuel injection system:Multi-port manifold injection
Engine aspiration:Naturally aspirated engine
Valvetrain:SOHC
Engine layout:Front, Longitudinal
Cylinder Bore:85 mm mm
Piston Stroke:88 mm mm
Compression ratio:8.8:1
Performance:
Fuel Type:Petrol (Gasoline)
Fuel consumption (economy) - combined:12.5 l/100 km
Acceleration 0 - 100 km/h:11.2 sec
Acceleration 0 - 62 mph:11.2 sec
Maximum speed:190 km/h
Weight-to-power ratio:9.6 kg/Hp, 103.7 Hp/tonne
Weight-to-torque ratio:6.6 kg/Nm, 151.8 Nm/tonne
Acceleration 0 - 60 mph:10.6 sec
Space:
Kerb Weight:1640
Max. weight:2140
Max load:500
Fuel tank capacity:82 l
Size:
Length:5000 mm mm [Same length.]
Width:1810 mm mm [Same width.]
Height:1440 mm mm [Same height.]
Wheelbase:2850 mm mm [Same wheelbase.]
Front track:1482 mm
Rear (Back) track:1485 mm
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheelRear wheel drive
Number of gears4
Transmission typeManual
Front brakesDisc
Rear brakesDisc
Steering typeCone worm with recirculation balls
Power steeringHydraulic Steering
Wheel rims size6J x 14
Front suspensionDouble wishbone, Air suspension
Rear suspensionAir suspension, Trailing arm

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