BMW 4 Series Convertible (G23 LCI, facelift 2024) 420i (184 Hp) Steptronic | Technical specs, data, fuel consumption, Dimensions

2025 BMW 4 Series Convertible (G23 LCI, facelift 2024) - Photo 1

Key specs

BMW 4 Series Convertible (G23 LCI, facelift 2024) 420i (184 Hp) Steptronic /Cabriolet 2024 - /

What is the body type of BMW 4 Series Convertible (G23 LCI, facelift 2024)?

Cabriolet, 2 Doors, 4 Seats

What is the fuel consumption and economy of BMW 4 Series Convertible (G23 LCI, facelift 2024) 420i (184 Hp) Steptronic?

6.7-7.4 l/100 km
35.1 - 31.8 US mpg
42.2 - 38.2 UK mpg
14.9 - 13.5 km/l

How environmentally friendly is BMW 4 Series 420i (184 Hp) Steptronic?

152-169 g/km CO₂
Euro 6e

How fast is 2024 4 Series Convertible (G23 LCI, facelift 2024) 420i (184 Hp) Steptronic?

236 km/h | 147 mph
0-100 km/h: 8.2 sec
0-60 mph: 7.8 sec

What is the power output of BMW 4 Series Cabriolet 2024 420i (184 Hp) Steptronic?

184 Hp, 300 Nm
221 lb.-ft.

What is the engine displacement of BMW 4 Series Cabriolet 2024 420i (184 Hp) Steptronic?

2.0 l
1998 cm³
121.93 cu. in.

What is the number of cylinders in 2024 BMW 420i (184 Hp) Steptronic?

4, Inline

What is the drivetrain of BMW 4 Series Convertible (G23 LCI, facelift 2024) Cabriolet 2024 420i (184 Hp) Steptronic?

Rear wheel drive. Internal Combustion engine. The Internal combustion engine (ICE) drives the rear wheels of the vehicle.

What is the length of 2024 BMW 4 Series Cabriolet?

4768 mm
187.72 in.

What is the width of 2024 BMW 4 Series Cabriolet?

1852 mm
72.91 in.

What is the kerb weight of 2024 BMW 4 Series Convertible (G23 LCI, facelift 2024) 420i (184 Hp) Steptronic?

1690 kg
3726 lbs.

What is the maximum permissible mass of 2024 BMW 4 Series Convertible (G23 LCI, facelift 2024) 420i (184 Hp) Steptronic?

2185 kg
4817 lbs.

What is the trunk (boot) capacity of 2024 BMW 4 Series Cabriolet?

300 - 385 l
10.6 - 13.6 cu. ft.

What are the number of gears and the gearbox type of 2024 BMW 4 Series Convertible (G23 LCI, facelift 2024) 420i (184 Hp) Steptronic?

8, automatic transmission Steptronic

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General information

Brand

BMW

Model

4 Series

Generation

4 Series Convertible (G23 LCI, facelift 2024)

Modification (Engine)

420i (184 Hp) Steptronic

Start of production

March, 2024

Powertrain Architecture

Internal Combustion engine

Body type

Cabriolet

Seats

Doors

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Performance specs

Combined fuel consumption (WLTP)

6.7-7.4 l/100 km 35.1 - 31.8 US mpg
42.2 - 38.2 UK mpg
14.9 - 13.5 km/l

CO₂ emissions (WLTP)

152-169 g/km

Fuel Type

Petrol (Gasoline)

Acceleration 0 - 100 km/h

8.2 sec

Acceleration 0 - 62 mph

8.2 sec

Acceleration 0 - 60 mph (Calculated by Auto-Data.net)

7.8 sec

Maximum speed

236 km/h 147 mph

Emission standard

Euro 6e

Weight-to-power ratio

9.2 kg/Hp, 108.9 Hp/tonne

Weight-to-torque ratio

5.6 kg/Nm, 177.5 Nm/tonne

Engine specs

Power

184 Hp @ 5000-6500 rpm.

Power per litre

92.1 Hp/l

Torque

300 Nm @ 1350-4000 rpm. 221 lb.-ft. @ 1350-4000 rpm.

Engine layout

Front, Longitudinal

Engine Model/Code

B48

Engine displacement

1998 cm³ 121.93 cu. in.

Number of cylinders

Engine configuration

Inline

Cylinder Bore

82 mm 3.23 in.

Piston Stroke

94.6 mm 3.72 in.

Compression ratio

11:1

Number of valves per cylinder

Fuel injection system

Direct injection

Engine aspiration

TwinPower Turbo, Intercooler

Valvetrain

Double-VANOS, VALVETRONIC

Engine oil capacity

5.25 l 5.55 US qt | 4.62 UK qt

Engine systems

Start & Stop System
Particulate filter

Volume and weights

Kerb Weight

1690 kg 3726 lbs.

Max. weight

2185 kg 4817 lbs.

Max load

495 kg 1091 lbs.

Trunk (boot) space - minimum

300 l 10.6 cu. ft.

Trunk (boot) space - maximum

385 l 13.6 cu. ft.

Fuel tank capacity

59 l 15.59 US gal | 12.98 UK gal

Permitted trailer load with brakes (12%)

1600 kg 3527 lbs.

Permitted trailer load without brakes

750 kg 1653 lbs.

Permitted towbar download

75 kg 165 lbs.

Dimensions

Length

4768 mm 187.72 in.

Width

1852 mm 72.91 in.

Width including mirrors

2081 mm 81.93 in.

Height

1384 mm 54.49 in.

Wheelbase

2851 mm 112.24 in.

Front track

1573 mm 61.93 in.

Rear (Back) track

1612 mm 63.46 in.

Front overhang

858 mm 33.78 in.

Rear overhang

1059 mm 41.69 in.

Ride height (ground clearance)

124 mm 4.88 in.

Drag coefficient (C_d)

0.28

Minimum turning circle (turning diameter)

11.4 m 37.4 ft.

Drivetrain, brakes and suspension specs

Drivetrain Architecture

The Internal combustion engine (ICE) drives the rear wheels of the vehicle.

Drive wheel

Rear wheel drive

Number of gears and type of gearbox

8 gears, automatic transmission Steptronic

Front suspension

Suspension strut, Anti-roll bar

Rear suspension

Independent multi-link spring suspension with anti-roll bar

Front brakes

Ventilated discs

Rear brakes

Ventilated discs

Assisting systems

ABS (Anti-lock braking system)

Steering type

Steering rack and pinion

Power steering

Electric Steering

Tire size

225/50 R17

Wheel rim size

7.5J x 17

Specs of BMW 4 Series Convertible (G23 LCI, facelift 2024) 420i (184 Hp) Steptronic /2024, 2025, 2026/