The Mercedes-Benz 420 SE is a saloon (sedan) designed by Bruno Sacco with 4 doors and a front mounted engine which transmits the power through the rear wheels.
The 420 SE is part of Mercedes-Benz's W 126 series of cars.
It's powered courtesy of a naturally aspirated engine of 4.2 litre capacity. This powerplant features single overhead camshaft valve gear, a 90 degree V 8 cylinder layout, and 2 valves per cylinder. It has an output of 221 bhp (224 PS/165 kW) of power at 5400 rpm, and maximum torque of 325 N·m (240 lb·ft/33.1 kgm) at 4000 rpm.
A 4 speed automatic 'box supplies the power to the driven wheels.
Its stated weight at the kerb is 1640 kg.
Maximum speed claimed is 220 km/h (137 mph), officially stated fuel consumption is 9.1/11.3/15.4 l/100km 90 km/h / 120 km/h / urban as per 80/1268/EEC.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 4/5 seater sedan/saloon | ||
| Number of doors | 4 | ||
| Designer | Bruno Sacco | ||
| dimensions & weights | |||
| Wheelbase | 2935 mm | 115.6 inches | |
| Track/tread (front) | 1555 mm | 61.2 inches | |
| Track/tread (rear) | 1527 mm | 60.1 inches | |
| Length | 5020 mm | 197.6 inches | |
| Width | 1820 mm | 71.7 inches | |
| Height | 1437 mm | 56.6 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.71 | ||
| Kerb weight | 1640 kg | 3616 lb | |
| Weight distribution | |||
| fuel tank capacity | 90 litres | 19.8 [23.8] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Mercedes-Benz | ||
| Engine code | M 116 E 42 / 116.965 | ||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 4.2 litre 4196 cc (256.056 cu in) |
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| Bore × Stroke | 92 × 78.9 mm
3.62 × 3.11 in |
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| Bore/stroke ratio | 1.17 | ||
| Valve gear | single overhead camshaft (SOHC)
2 valves per cylinder 16 valves in total |
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| maximum power output | 224 PS (221 bhp) (165 kW) at 5400 rpm |
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| maximum torque | 325 Nm (240 ft·lb) (33.1 kgm) at 4000 rpm |
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| Specific output | 39.3 kW/litre 53.4 ps/litre 52.7 bhp/litre 0.86 bhp/cu in |
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| Specific torque |
77.45 Nm/litre
0.94 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 10:1 | ||
| Fuel system | Bosch KE-Jetronic fuel injection | ||
| bmep (brake mean effective pressure) | 973.3 kPa (141.2 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 524.5 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | Y | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | 8.3 s | ||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 220 km/h (137 mph) | ||
| Power-to-weight ratio | Higher is better 136.63 PS/tonne (1000 kg) 0.14 PS/kg 100.49 kW/tonne (1000 kg) 0.1 kW/kg 134.76 bhp/tonne (1000 kg) 0.13 bhp/kg 0.06 bhp/lb |
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| Weight-to-power ratio | Lower is better 9.95 kg/kW 16.62 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | 9.1/11.3/15.4 l/100km 90 km/h / 120 km/h / urban as per 80/1268/EEC | ||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | 9.1/11.3/15.4 l/100km 90kmph/120kmph/urban | ||
| km/litre | 11.0/8.8/6.5 km/l 90kmph/120kmph/urban | ||
| UK MPG | 31.0/25.0/18.3 UK MPG 90kmph/120kmph/urban | ||
| US MPG | 25.8/20.8/15.3 US MPG 90kmph/120kmph/urban | ||
| Carbon dioxide emissions | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| chassis | |||
| Engine position | front | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | |||
| turns lock-to-lock | 3.030 | ||
| Turning circle | |||
| Front suspension | I.DW.CS.ARB. | ||
| Rear suspension | I.STA.CS.ARB. | ||
| Wheel size front | 7J x 15 H 2 | ||
| Wheel size rear | 7J x 15 H 2 | ||
| Tyres front | 205/65 VR 15 | ||
| Tyres rear | 205/65 VR 15 | ||
| Brakes F/R | VeDi/Di-S-ABS | ||
| Front brake diameter | 300 mm | ||
| Rear brake diameter | 279 mm | ||
| Braked area | |||
| Gearbox | 4 speed automatic | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 2.47 | ||
| general | |||
| Carfolio.com ID | 193281 | ||
| Production total | |||
| Model code | W 126 E 42 | ||
| Model family | W 126 | ||
| RAC rating | 42.0 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1987 Mercedes-Benz 420 SE added 2009-01-22. Last modified 2013-06-19. |
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