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Specs of BMW 4 Series Convertible (G23) M440d (340 Hp) Mild Hybrid xDrive Steptronic /2021, 2022, 2023, 2024/

2021 BMW 4 Series Convertible (G23) - Photo 1
BMW 4 Series Convertible (G23) - Photo 2BMW 4 Series Convertible (G23) - Photo 3BMW 4 Series Convertible (G23) - Photo 4BMW 4 Series Convertible (G23) - Photo 5BMW 4 Series Convertible (G23) - Photo 6BMW 4 Series Convertible (G23) - Photo 7BMW 4 Series Convertible (G23) - Photo 8BMW 4 Series Convertible (G23) - Photo 9BMW 4 Series Convertible (G23) - Photo 10

Key specs

BMW 4 Series Convertible (G23) M440d (340 Hp) Mild Hybrid xDrive Steptronic /Cabriolet 2021 - 2024/

What is the body type of BMW 4 Series Convertible (G23)?
Cabriolet, 2 Doors, 4 Seats
What is the fuel consumption and economy of BMW 4 Series Convertible (G23) M440d (340 Hp) Mild Hybrid xDrive Steptronic?
6-6.6 l/100 km
39.2 - 35.6 US mpg
47.1 - 42.8 UK mpg
16.7 - 15.2 km/l
How environmentally friendly is BMW 4 Series M440d (340 Hp) Mild Hybrid xDrive Steptronic?
157-172 g/km CO2
Euro 6d
How fast is 2021 4 Series Convertible (G23) M440d (340 Hp) Mild Hybrid xDrive Steptronic?
250 km/h | 155 mph
0-100 km/h: 5 sec
0-60 mph: 4.8 sec
What is the power output of BMW 4 Series Cabriolet 2021 M440d (340 Hp) Mild Hybrid xDrive Steptronic?
340 Hp, 700 Nm
516 lb.-ft.
What is the engine displacement of BMW 4 Series Cabriolet 2021 M440d (340 Hp) Mild Hybrid xDrive Steptronic?
3.0 l
2993 cm3
182.64 cu. in.
What is the number of cylinders in 2021 BMW M440d (340 Hp) Mild Hybrid xDrive Steptronic?
6, Inline
What is the drivetrain of BMW 4 Series Convertible (G23) Cabriolet 2021 M440d (340 Hp) Mild Hybrid xDrive Steptronic?
All wheel drive (4x4). MHEV (Mild Hybrid Electric Vehicle, power-assist hybrid, battery-assisted hybrid vehicles, BAHV). The Internal combustion engine (ICE) and the electric motor permanently drive the four wheels of the car with the ability to work only in mixed mode.
What is the length of 2021 BMW 4 Series Cabriolet?
4768 mm
187.72 in.
What is the width of 2021 BMW 4 Series Cabriolet?
1852 mm
72.91 in.
What is the kerb weight of 2021 BMW 4 Series Convertible (G23) M440d (340 Hp) Mild Hybrid xDrive Steptronic?
1980 kg
4365 lbs.
What is the maximum permissible mass of 2021 BMW 4 Series Convertible (G23) M440d (340 Hp) Mild Hybrid xDrive Steptronic?
2480 kg
5467 lbs.
What is the trunk (boot) capacity of 2021 BMW 4 Series Cabriolet?
300 - 385 l
10.6 - 13.6 cu. ft.
What is the number of gears in What is the gearbox type of 2021 BMW 4 Series Convertible (G23) M440d (340 Hp) Mild Hybrid xDrive Steptronic?
8, automatic transmission Steptronic
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General information

Brand
BMW
Model
4 Series
Generation
4 Series Convertible (G23)
Modification (Engine)
M440d (340 Hp) Mild Hybrid xDrive Steptronic
Start of production
November, 2021 year
End of production
January, 2024 year
Powertrain Architecture
MHEV (Mild Hybrid Electric Vehicle, power-assist hybrid, battery-assisted hybrid vehicles, BAHV)
Body type
Cabriolet
Seats
4
Doors
2
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Performance specs

Fuel consumption at Low speed (WLTP)
10.1-10.6 l/100 km 23.3 - 22.2 US mpg
28 - 26.6 UK mpg
9.9 - 9.4 km/l
Fuel consumption at Medium speed (WLTP)
5.9-6.4 l/100 km 39.9 - 36.8 US mpg
47.9 - 44.1 UK mpg
16.9 - 15.6 km/l
Fuel consumption at high speed (WLTP)
5-5.5 l/100 km 47 - 42.8 US mpg
56.5 - 51.4 UK mpg
20 - 18.2 km/l
Fuel consumption at very high speed (WLTP)
5.4-6.1 l/100 km 43.6 - 38.6 US mpg
52.3 - 46.3 UK mpg
18.5 - 16.4 km/l
Combined fuel consumption (WLTP)
6-6.6 l/100 km 39.2 - 35.6 US mpg
47.1 - 42.8 UK mpg
16.7 - 15.2 km/l
CO2 emissions (WLTP)
157-172 g/km
Fuel Type
Diesel
Acceleration 0 - 100 km/h
5 sec
Acceleration 0 - 62 mph
5 sec
Acceleration 0 - 60 mph (Calculated by Auto-Data.net)
4.8 sec
Maximum speed
250 km/h, Electronically limited 155 mph
Emission standard
Euro 6d
Weight-to-power ratio
5.8 kg/Hp, 171.7 Hp/tonne
Weight-to-torque ratio
2.8 kg/Nm, 353.5 Nm/tonne

Electric cars and hybrids specs

Gross battery capacity
0.4 kWh
Battery voltage
48 V
Battery technology
Lithium-ion (Li-Ion)
Battery location
Under the front hood

Electric motor 1

Electric motor power
11 Hp
Electric motor Torque
25 Nm 18 lb.-ft.
Electric motor location
Front, Longitudinal

Internal combustion engine specs

Power
340 Hp @ 4400 rpm.
Power per litre
113.6 Hp/l
Torque
700 Nm @ 1750-2250 rpm. 516 lb.-ft. @ 1750-2250 rpm.
Engine layout
Front, Longitudinal
Engine Model/Code
B57D30B
Engine displacement
2993 cm3 182.64 cu. in.
Number of cylinders
6
Engine configuration
Inline
Cylinder Bore
84 mm 3.31 in.
Piston Stroke
90 mm 3.54 in.
Compression ratio
16.5:1
Number of valves per cylinder
4
Fuel injection system
Diesel Commonrail
Engine aspiration
TwinPower Turbo, Intercooler
Valvetrain
DOHC
Engine oil capacity
7 l 7.4 US qt | 6.16 UK qt
Engine oil specification
Log in to see.Log in to see.
Coolant
7.7 l 8.14 US qt | 6.78 UK qt
Engine systems
Start & Stop System
Particulate filter

Volume and weights

Kerb Weight
1980 kg 4365 lbs.
Max. weight
2480 kg 5467 lbs.
Max load
500 kg 1102 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 (8%)
1800 kg 3968 lbs.
Permitted trailer load with brakes (12%)
1800 kg 3968 lbs.
Permitted trailer load without brakes
750 kg 1653 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.
Minimum turning circle (turning diameter)
12 m 39.37 ft.

Drivetrain, brakes and suspension specs

Drivetrain Architecture
The Internal combustion engine (ICE) and the electric motor permanently drive the four wheels of the car with the ability to work only in mixed mode.
Drive wheel
All wheel drive (4x4)
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
Tires size
Front wheel tires: 225/45 R18; 225/40 R19
Rear wheel tires: 250/40 R18; 255/35 R19
Wheel rims size
Front wheel rims: 7.5J x 18; 8J x 19
Rear wheel rims: 8.5J x 18; 8.5J x 19