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BMW 4 Convertible – 420 i petrol

F33, F83 · 135 kW / 184 hp

2016 - 2020 · Petrol · Engine code B48B20A

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Car Details

Details may vary by version.

Engine

Fuel
Petrol
Made
2016 - 2020
Engine code
B48B20A
Engine size
1,998 cc (2 litres)
Engine power
184 hp (135 kW) at 5,000 rpm
Torque (pulling power)
270 to 290 Nm at 1,350 to 4,600 rpm
Cylinders
4, in a row (inline)
Turbo
Turbo
Fuel injection
Direct injection
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Valves
16 (4 per cylinder)
Bore x stroke
82 x 94.6 mm
Compression ratio
11:1
Engine position
Front, lengthways (longitudinal)
Catalytic converter
Three-way catalytic converter

Fluids and capacities

Engine oil amount
5 litres
Engine oil grade
0W-20, 0W-30, 0W-40 or 5W-30 (and 1 more)
Coolant
7.8 to 8.1 litres
Fuel tank
60 litres

Gearbox and drive

Gearbox
6-speed manual or 8-speed automatic
Driven wheels
Rear-wheel drive

Wheels, brakes, suspension and steering

Tyre size
225/50 R17, 225/45 R18, 255/40 R18 or 225/40 R19 (and 1 more)
Wheel (rim) size
7.5J x 17, 8J x 18, 8.5J x 18 or 8J x 19 (and 1 more)
Front brakes
Ventilated discs
Rear brakes
Ventilated discs
Steering
Rack and pinion, electric power steering
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Front suspension
Independent coil spring
Rear suspension
Independent multi-link suspension

Size and weight

Body style
Convertible
Seats
4
Doors
2
Length
4,640 mm
Width
1,825 mm
Height
1,384 mm
Weight (empty)
1,700 to 1,715 kg
Ground clearance
130 mm
Boot space
370 litres
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Wheelbase
2,810 mm
Front track
1,544 mm
Rear track
1,593 mm
Turning circle
11.3 metres
Maximum weight (loaded)
2,170 to 2,185 kg
Load it can carry
470 kg

Speed and fuel use

Fuel use, mixed driving
5.8 to 6.6 l/100 km (about 15.2 to 17.2 km per litre)
Fuel use in town
7.6 to 8.6 l/100 km (about 11.6 to 13.2 km per litre)
Fuel use on the highway
4.8 to 5.5 l/100 km (about 18.2 to 20.8 km per litre)
Top speed
230 km/h
0 to 100 km/h
8.2 to 8.4 seconds
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CO2 emissions
136 to 153 g/km
Emission standard
Euro 6

Fuel use is from official tests; town driving usually uses more.

More

Towing, trailer with brakes
1,400 to 1,500 kg
Towing, trailer without brakes
695 kg
Weight on the tow bar
75 kg
Air drag (Cd)
0.3