280 SEL
- Combustion principle: four-stroke petrol (with manifold injection)
- Configuration: front, longitudinal; vertical
- Engine type: M 110 E 28 / 110.987; from 10.1981: 110.989
- 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: 9.0
- Rated output: 185 hp / 136 kW at 5800 rpm
- Rated torque: 240 Nm at 4500 rpm
- 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 / 90 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: gas-pressure shock absorbers
- Steering: recirculating-ball power steering
- Brake system (foot brake): hydraulic dual-circuit brake system with vacuum booster, antilock system optional; disc brakes front (internally ventilated) and rear
- 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 VR 14
- Driven wheels: rear wheels
- Drivetrain: divided cardan shaft
- Gearing: 4-speed manual transmission
- Availibility: as standard
- 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: 3.46
- Maximum speed: 210 km/h
- Acceleration 0-100 km/h: 10.0 s
- Fuel consumption: 9.1 / 11.3 / 17.3 l; from 10.1981: 9.0 / 11.2 / 14.6 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: 3.46
- Maximum speed: 210 km/h
- Acceleration 0-100 km/h: 10.0 s
- Fuel consumption: 8.0 / 10.3 / 14.6 l
- by Guideline: 80/1268/EEC: figures apply to 90 km/h / 120 km/h / urban cycle
- Gearing: 4-speed automatic transmission
- Availibility: optional
- 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: 3.46
- Maximum speed: 205 km/h
- Acceleration 0-100 km/h: 10.8 s
- Fuel consumption: 9.4 / 11.7 / 17.1 l; from 10.1981: 9.5 / 11.6 / 14.5 l
- by Guideline: 80/1268/EEC: figures apply to 90 km/h / 120 km/h / urban cycle
- Wheelbase: 3070 mm
- Front / rear track: 1545 / 1517 mm
- Length: 5135 mm
- Width: 1820 mm
- Height: 1434 mm
- Kerb weight: 1590 kg
- by Guideline: DIN 70020 (ready to drive, including fuel, spare wheel and tool kit)
- Gross weight: 2110 kg
- Units produced: 20.655
- Prices: 09.1979: DM 41,188.50
03.1980: DM 42,804.40
08.1980: DM 43,606.70
07.1981: DM 45,098.30
01.1982: DM 46,635.10
07.1982: DM 48,081.50
09.1982: DM 48,567.40
07.1983: DM 48,997.20
08.1983: DM 50,445.00
01.1984: DM 51,756.00
09.1984: DM 53,295.00
04.1985: DM 55,176.00