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2018 BMW 4 Series Gran Coupe 430i

The 2018 BMW 4 Series Gran Coupe 430i is a 248-hp 2.0-liter turbocharged inline-4 coupe with an 8-speed sport automatic and rear-wheel drive. It starts at $43,300 MSRP and is rated at 27 mpg combined.

It makes 248 horsepower at 5,200 rpm and 258 lb-ft of torque at 1450 rpm. EPA fuel-economy estimates are 24 mpg city and 34 mpg highway (27 mpg combined).

The 4 Series Gran Coupe measures 182.5 inches long on a 110.6-inch wheelbase and has a curb weight of 3,610 lb.

Spec Value
Vehicle
Body TypeCoupe
PowertrainGas
Price
MSRP$43,300
MSRP with Destination$44,295
Destination Charge$995
Engine
Engine Type2.0L Inline-4 16V TwinPower Turbo
Displacement2 L
Horsepower248 hp @ 5,200 rpm
Torque258 lb-ft @ 1450 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
City24 MPG
Highway34 MPG
Combined27 MPG
Recommended FuelPremium
Tank Capacity15.8 gal
Suspension
Front SuspensionStrut
Rear SuspensionMulti-Link
Turning Diameter37.1 ft
Brakes
Front Brake Disc13.0 in (vented)
Rear Brake Disc11.8 in (vented)
Tires & Wheels
Wheels Front18 x 8 in
Wheels Rear18 x 8 in
Tires Front225/45R18
Tires Rear225/45R18
Dimensions & Weight
Length182.5 in
Width71.8 in
Height54.6 in
Wheelbase110.6 in
Front Track60.8 in
Rear Track62.8 in
Cargo Volume17 ft³
Curb Weight3,610 lbs
Interior
Headroom Front39.8 in
Headroom Rear37.2 in
Legroom Front42.2 in
Legroom Rear33.7 in
Shoulder Room Front54.8 in
Shoulder Room Rear54.3 in

Safety & Recalls

NCAP safety ratings

Tested, but no star ratings were published (2018 BMW 4 Series 2 DR RWD).

Recalls

No recalls on file with NHTSA for the 2018 BMW 4 SERIES.

34 owner complaints to NHTSA for the 2018 BMW 4 SERIES

Owner Complaints

34 owner complaints filed with NHTSA for the 2018 BMW 4 SERIES (5 mention a crash, 2 a fire, 6 an injury). See all on nhtsa.gov

Most-cited areas
Engine10
Engine And Engine Cooling7
Electrical System6
Unknown Or Other5
Seat Belts4
Seats3
A complaint can cite more than one area.
Most recent complaints
Apr 23, 2025 · Seat Belts
“Seatbelt alert pops up and noise sounds even when seatbelt is already buckled”
Mar 18, 2025 · Engine And Engine Cooling, Electrical System
“The contact owns a 2018 BMW 430I. The contact stated that while the vehicle was parked, the contact discovered that there was an unknown liquid leaking underneath the vehicle. The coolant warning…”
Jan 17, 2025 · Engine And Engine Cooling
“The contact owns a 2018 BMW 430I. The contact stated while driving at an undisclosed speed, the vehicle lost motive power. The vehicle was restarted; however, the failure persisted. The vehicle was…”
Dec 13, 2024 · Electrical System, Service Brakes, Engine Crash
“I pulled out onto Southside Blvd. My brakes failed, my driver’s front of the car hit a Waste Management garbage truck right back tire and cut the sidewall of the tire. The engine was racing, the truck…”
Dec 5, 2024 · Engine And Engine Cooling
“The contact owns a 2018 BMW 430I. The contact stated while driving at an undisclosed speed, the engine started overheating with the low coolant warning light illuminated. The contact parked and left…”

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 2018 BMW 4 SERIES. US-market vehicles only; data cached for up to 7 days.

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