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2017 BMW 4 Series Convertible 440i

The 2017 BMW 4 Series Convertible 440i is a 320-hp 3.0-liter turbocharged inline-6 convertible with an 8-speed sport automatic and rear-wheel drive. It starts at $57,300 MSRP and is rated at 24 mpg combined.

It makes 320 horsepower at 5,500 rpm and 330 lb-ft of torque at 1380 rpm. EPA fuel-economy estimates are 21 mpg city and 29 mpg highway (24 mpg combined).

The 4 Series Convertible measures 182.6 inches long on a 110.6-inch wheelbase and has a curb weight of 4,110 lb.

Spec Value
Vehicle
Body TypeConvertible
PowertrainGas
Price
MSRP$57,300
MSRP with Destination$58,295
Destination Charge$995
Engine
Engine Type3.0L Inline-6 24V TwinPower Turbo
Displacement3 L
Horsepower320 hp @ 5,500 rpm
Torque330 lb-ft @ 1380 rpm
Injection TypeGasoline Direct Injection
Drivetrain
Drive TypeRWD
Transmission
Transmission8-speed Sport Automatic (Steptronic)
1st Gear4.71
2nd Gear3.14
3rd Gear2.11
4th Gear1.67
5th Gear1.28
6th Gear1
7th Gear0.84
8th Gear0.67
Reverse3.29
Final Drive3.15
Fuel Economy
City21 MPG
Highway29 MPG
Combined24 MPG
Recommended FuelPremium
Tank Capacity15.8 gal
Suspension
Front SuspensionStrut
Rear SuspensionMulti-Link
Turning Diameter37.1 ft
Brakes
Front Brake Disc13.4 in (vented)
Rear Brake Disc13.0 in (vented)
Tires & Wheels
Wheels Front18 x 8 in
Wheels Rear18 x 8 in
Tires Front225/45R18
Tires Rear225/45R18
Dimensions & Weight
Length182.6 in
Width71.9 in
Height54.5 in
Wheelbase110.6 in
Front Track60.8 in
Rear Track62.8 in
Cargo Volume7.8 ft³
Curb Weight4,110 lbs
Interior
Headroom Front40.4 in
Headroom Rear37.1 in
Legroom Front42.2 in
Legroom Rear33.1 in
Shoulder Room Front55.3 in
Shoulder Room Rear49.8 in

Safety & Recalls

NCAP safety ratings

Tested, but no star ratings were published (2017 BMW 4 Series 2 DR RWD).

Recalls

No recalls on file with NHTSA for the 2017 BMW 4 SERIES.

23 owner complaints to NHTSA for the 2017 BMW 4 SERIES

Owner Complaints

23 owner complaints filed with NHTSA for the 2017 BMW 4 SERIES (1 mention a crash, 1 an injury). See all on nhtsa.gov

Most-cited areas
Engine9
Unknown Or Other5
Electrical System4
Air Bags3
Engine And Engine Cooling3
Power Train2
A complaint can cite more than one area.
Most recent complaints
Jun 25, 2025 · Air Bags
“The car is sporadically saying passenger restraint system, going on and off.”
May 20, 2025 · Engine And Engine Cooling
“The contact owns a 2017 BMW 430I. The contact stated that while driving 70 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The contact stated that the vehicle…”
Apr 23, 2025 · Engine And Engine Cooling, Engine
“The contact owns a 2017 BMW 430i. The contact stated that while operating the vehicle, the message "Coolant Leak, Refill Coolant" was displayed. The vehicle was taken to the local dealer who diagnosed…”
Dec 21, 2024 · Engine
“Catastrophic failure of plastic oil filter housing causing complete emptying of engine coolant. Failed part is available for analysis. Car was immediately immobilized, requiring a tow. This problem…”
Oct 10, 2024 · Electrical System, Unknown Or Other, Engine
“There is a recall on the connector for the year of my vehicle and the BMW Sewell Plano dealership is trying to charge me for the service and repairs. They will not honor the recall.”

Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.

Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 2017 BMW 4 SERIES. US-market vehicles only; data cached for up to 7 days.

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