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Mercedes-Benz 250

(1979 model)

Brief specs of 1979 Mercedes-Benz 250

4-door 5-seater sedan (saloon), petrol (gasoline) 6-cylinder 12-valve straight (inline) engine, SOHC (single overhead camshaft), 2525 cm3 / 154.1 cu in / 154.1 cu in, 102.9 kW / 138.0 hp / 138.0 hp @ 5500 rpm / 5500 rpm / 5500 rpm, 200.0 N·m / 147.5 lb·ft / 147.5 lb·ft @ 3500 rpm / 3500 rpm / 3500 rpm, manual 4-speed transmission, rear wheel drive, 185 km/h / 115 mph / 115 mph top speed

units: metric UK US

Basic (general) data

Marque (make)Mercedes-BenzIssued from1979
Model250Issued until
Serie250Number made
Model familyW 123Body construction
Model codeW123 V 125Body designation
ManufacturerMercedes-BenzCountryDE

Bodywork

Base platformNumber of doors4
Bodywork typesedan (saloon)Number of seats5
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4725 mm / 186.0 in / 186.0 inTotal (curb) weight1360 kg / 2998 lb / 2998 lb
Width1786 mm / 70.3 in / 70.3 inDry weight
Height1440 mm / 56.7 in / 56.7 inLoad capacity
Wheelbase2795 mm / 110.0 in / 110.0 inGross (max.) weight
Track front1488 mm / 58.6 in / 58.6 inTowing weight
Track rear1453 mm / 57.2 in / 57.2 inWeight distribution (front)
Ground clearance170 mm / 6.7 in / 6.7 inFuel capacity80 l / 17.6 UK gal / 21.1 US gal
Length/wheelbase ratio1.69  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)2.19 m2 / 23.5 sq ft / 23.5 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeM 123 V 25 / 123.920Total number of cylinders6
Engine Typestraight (inline) (Inline, 6 cylinder)Total number of valves12
Engine ManufacturerMercedes-BenzValves per cylinder2
Engine constructionBore86.0 mm / 3.39 in / 3.39 in
Fuelpetrol (gasoline)Stroke72.5 mm / 2.85 in / 2.85 in
Fuel detailsBore/Stroke ratio1.19
Fuel supply1 So carbEngine displacement2525 cm3 / 154.1 cu in / 154.1 cu in
Engine Main bearings4Unitary capacity420.83 cm3/cylinder / 25.681 cu in/cylinder / 25.681 cu in/cylinder
Cam DesignSOHC (single overhead camshaft)Compression ratio9.0 : 1
SumpMax. output power102.9 kW / 138.0 hp / 138.0 hp at 5500 rpm / 5500 rpm / 5500 rpm
AspirationnaturalMax. torque200.0 N·m / 147.5 lb·ft / 147.5 lb·ft at 3500 rpm / 3500 rpm / 3500 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)44.1 kW / 59.1 hp / 59.1 hp (est.)
CoolantwaterSpecific output40.8 kW/l / 0.895 bhp/cu in / 0.895 bhp/cu in
Catalytic converternoSpecific torque79.2 N·m/l / 0.69 lb·ft/cu in / 0.69 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio3.69

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed185 km/h / 115 mph / 115 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio101.5 kW/ton / 76.9 bhp/ton / 76.9 bhp/ton
Acceleration 0-100 km/h11.30 s / 11.30 s / 11.30 sFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions
  Range

Chassis

Engine locationfrontEngine alignmentlongitudinal
Steeringrecirculating ball PASSteering details
Turns lock-to-lock4.3Turning circle
Suspension frontIndependent, Wishbone (A-arm, control arm), Coil springsSuspension rearIndependent, Semi-trailing arm, Coil springs
Wheels front5.5J x 14 H 2Wheels rear5.5J x 14 H 2
Tyres front175 HR 14 88 HTyres rear175 HR 14 88 H
Brakes frontdiscBrakes reardisc
Brake diameter front278 mm / 10.9 in / 10.9 inBrake diameter rear279 mm / 11.0 in / 11.0 in
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of Mercedes-Benz 250

Infobox

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