280 E
  • Design name
    W 123 E 28
  • Type
    123.033
  • Production period
    07.1975 / 12.1975 - 12.1985
  • Note on production period
    production start-up pre-production series / standard production - end of production
  • Combustion principle
    four-stroke petrol (with manifold injection)
  • Configuration
    front, longitudinal; vertical
  • Engine type
    M 110 E 28 / 110.984
  • Number of cylinders / arrangement
    6 / in-line
  • Bore x Stroke
    86.0 x 78.8 mm
  • Total displacement
    2746 cc (tax classification: 2717 cc)
  • Compression ratio
    8.7; from 04.1978: 9.0
  • Rated output
    177 hp / 130 kW at 6000 rpm;~from 04.1978: 185 hp / 136 kW at 5800 rpm
  • Rated torque
    234 Nm at 4500 rpm; from 04.1978: 240 Nm at 4500 /min
  • Number of valves / arrangement
    1 intake, 1 exhaust / V-shaped overhead
  • Valve operation
    2 overhead camshafts
  • Camshaft drive
    double roller chain
  • Fuel system
    manifold injection, mechanically controlled (Bosch K-Jetronic)
  • Fuel tank: position / capacity
    above the rear axle / 80 l
  • Frame design
    steel unit body
  • Front-wheel suspension
    double wishbone
  • Rear-wheel suspension
    semi-trailing arm axle (hydropneumatic level control optional)
  • Front springs
    coil springs, supplementary rubber suspension, torsion bar stabiliser
  • Rear springs
    coil springs, supplementary rubber suspension, torsion bar stabiliser
  • Shock absorber front/rear
    telescopic shock absorbers
  • Steering
    recirculating-ball power steering
  • Brake system (foot brake)
    hydraulic dual-circuit brake system with vacuum booster, antilock system optional from 08.1980; four-wheel disc brakes
  • Parking brake (hand brake)
    mechanical (foot-operated), acting on rear wheels
  • Wheels
    sheet-steel wheels (light-alloy wheels optional)
  • Wheel rims
    6 J 14 x H 2
  • Tires
    195/70 HR 14 89 H
  • Driven wheels
    rear wheels
  • Drivetrain
    divided cardan shaft
  • Gearing
    4-speed manual transmission
  • Availibility
    as standard (until 04.1977)
  • Shifting
    central floor gear shift lever
  • Clutch
    dry single-disc clutch
  • Transmission type
    change-speed gear
  • Gear ratios
    I. 3.90; II. 2.30; III. 1.41; IV. 1.0; R. 3.66
  • Final drive ratio
    3.54
  • Maximum speed
    200 km/h
  • Acceleration 0-100 km/h
    9.9 s
  • Fuel consumption
    9.5 / 12.1 / 18.3 l
  • by Guideline
    80/1268/EEC: figures apply to 90 km/h / 120 km/h / urban cycle
  • Gearing
    4-speed manual transmission
  • Availibility
    as standard (until 04.1977)
  • Shifting
    central floor gear shift lever
  • Clutch
    dry single-disc clutch
  • Transmission type
    change-speed gear
  • Gear ratios
    I. 3.98; II. 2.29; III. 1.45; IV. 1.0; R. 3.74
  • Final drive ratio
    3.54; from 11.1977: 3.58
  • Maximum speed
    200 km/h
  • Acceleration 0-100 km/h
    9.9 s
  • Fuel consumption
    9.5 / 12.1 / 18.3 l; from 10.1981: 9.3 / 11.7 / 15.0 l
  • by Guideline
    80/1268/EEC: figures apply to 90 km/h / 120 km/h / urban cycle
  • Gearing
    5-speed manual transmission
  • Availibility
    optional (from 10.1981)
  • Shifting
    central floor gear shift lever
  • Clutch
    dry single-disc clutch
  • Transmission type
    change-speed gear
  • Gear ratios
    I. 3.82; II. 2.20; III. 1.40; IV. 1.0; V. 0.81; R. 3.71
  • Final drive ratio
    3.58
  • Maximum speed
    200 km/h
  • Acceleration 0-100 km/h
    9.9 s
  • Fuel consumption
    8.5 / 10.7 / 15.0 l
  • by Guideline
    80/1268/EEC: figures apply to 90 km/h / 120 km/h / urban cycle
  • Gearing
    4-speed automatic transmission
  • Availibility
    optional (until 09.1981)
  • Shifting
    central floor gear shift lever
  • Clutch
    hydraulic torque converter in automatic transmission
  • Transmission type
    planetary gear system
  • Gear ratios
    I. 3.98; II. 2.39; III. 1.46; IV. 1.0; R. 5.47
  • Final drive ratio
    3.54; from 11.1977: 3.58
  • Maximum speed
    195 km/h
  • Acceleration 0-100 km/h
    10.8 s
  • Fuel consumption
    10.3 / 13.0 / 17.1 l
  • by Guideline
    80/1268/EEC: figures apply to 90 km/h / 120 km/h / urban cycle
  • Gearing
    4-speed automatic transmission
  • Availibility
    optional (from 10.1981)
  • Shifting
    central floor gear shift lever
  • Clutch
    hydraulic torque converter in automatic transmission
  • Transmission type
    planetary gear system
  • Gear ratios
    I. 3.68; II. 2.41; III. 1.44; IV. 1.0; R. 5.14
  • Final drive ratio
    3.58
  • Maximum speed
    195 km/h
  • Acceleration 0-100 km/h
    10.8 s
  • Fuel consumption
    9.8 / 12.1 / 14.8 l
  • by Guideline
    80/1268/EEC: figures apply to 90 km/h / 120 km/h / urban cycle
  • Wheelbase
    2795 mm
  • Front / rear track
    1488 / 1446 mm
  • Length
    4725 mm
  • Width
    1786 mm
  • Height
    1438 mm
  • Kerb weight
    1475 kg
  • by Guideline
    DIN 70020 (ready to drive, including fuel, spare wheel and tool kit)
  • Gross weight
    1995 kg
  • Units produced
    126.004
  • Prices
    01.1976: DM 26,895.30
    02.1977: DM 28,116.30
    01.1978: DM 28,369.60
    04.1978: DM 29,422.40
    12.1978: DM 30,016.00
    05.1979: DM 30,212.00
    01.07.1979: DM 30,481.75
    16.07.1979: DM 31,075.00
    03.1980: DM 32,295.40
    08.1980: DM 32,905.60
    07.1981: DM 33,900.00
    09.1981: DM 34,193.80
    01.1982: DM 35,131.70
    07.1982: DM 36,374.70
    07.1983: DM 36,696.60
    08.1983: DM 37,882.20
    01.1984: DM 38,760.00
    09.1984: DM 39,900.00
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