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2018 BMW 4 Series

Trims, performance, features, fuel economy, safety and known problems — with the pros and cons against similar 2018 models.

Class: Subcompact Cars
Body styles: 430i Xdrive 2dr Cabriolet, 430i Xdrive 2dr Coupe, 440i 2dr Coupe RWD, 440i Xdrive 2dr Cabriolet
Engines: 2.0L 4-cyl turbo, 3.0L 6-cyl turbo
Drivetrain: Rear-Wheel Drive, All-Wheel Drive
Fuel: Premium Gasoline
MPG (best): 27 combined · 24 city / 34 hwy
Length: 182.7 in
Curb weight: 3,706–4,330 lb
NHTSA rating: Not rated
Recalls: 0 campaigns

Pros & cons

What's good

AWD / 4WD available
No recalls so far

Watch out for

Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.

Calculated from EPA, NHTSA and vPIC data against 32 similar 2018 models — not a review. How we calculate this →

Overview

The 2018 BMW 4 Series is a subcompact car offered with 2 engines (2.0L 4-cyl turbo and 3.0L 6-cyl turbo) and rear-wheel drive and all-wheel drive.

It measures about 183 inches long and 72 inches wide on a 111-inch wheelbase, with a curb weight of roughly 4,211 lb (430i Xdrive 2dr Cabriolet).

EPA rates its most efficient version at 27 MPG combined (24 city / 34 highway), 14% better than the 2018 subcompact car average of 23.7 MPG, for an estimated $3,050 a year in fuel.

NHTSA has not published a 5-Star overall rating for this model year.

There are no recalls or owner complaints on file with NHTSA for this model year.

What changed for 2018

No changes to engines, powertrains, drivetrains, size, EPA ratings or NHTSA crash rating compared with the 2017 4 Series — a carry-over year in the data.

Compared with 2017; trim, feature and price changes aren't covered. See the 2017 4 Series →

Dimensions & weight

Body	Length	Width	Height	Wheelbase	Track F / R	Curb weight	Weight F/R
430i Xdrive 2dr Cabriolet	182.7 in	72 in	54.3 in	110.6 in	61 / 62.6 in	4,211 lb	48/52
430i Xdrive 2dr Coupe	182.7 in	72 in	54.3 in	110.6 in	61 / 62.6 in	3,706 lb	51/49
440i 2dr Coupe RWD	182.7 in	72 in	54.3 in	110.6 in	61 / 62.6 in	3,721 lb	51/49
440i Xdrive 2dr Cabriolet	182.7 in	72 in	54.3 in	110.6 in	61 / 62.6 in	4,330 lb	49/51
440i Xdrive 2dr Coupe	182.7 in	72 in	54.3 in	110.6 in	61 / 62.6 in	3,860 lb	52/48
Gran Coupe 430i Xdrive 4dr Sedan	182.7 in	72 in	54.7 in	110.6 in	61 / 62.6 in	3,777 lb	49/51

Transport Canada CVS (Open Government Licence – Canada), Canadian-market figures.

Will it fit your garage? Check with your measurements →

Engines, MPG & running costs

Version	Engine	Transmission	Drive	City / Hwy / Comb	vs. class	Fuel / yr	CO₂ g/mi
430i Convertible	2.0L 4-cyl turbo	Automatic (S8)	Rear-Wheel Drive	24 / 34 / 27	+14%	$3,050	324
430i Coupe	2.0L 4-cyl turbo	Automatic (S8)	Rear-Wheel Drive	24 / 34 / 27	0%	$3,050	324
430i xDrive Coupe	2.0L 4-cyl turbo	Automatic (S8)	All-Wheel Drive	23 / 33 / 27	0%	$3,050	333
430i Gran Coupe	2.0L 4-cyl turbo	Automatic (S8)	Rear-Wheel Drive	24 / 34 / 27	0%	$3,050	324
430i xDrive Gran Coupe	2.0L 4-cyl turbo	Automatic (S8)	All-Wheel Drive	23 / 33 / 27	0%	$3,050	333
430i xDrive Convertible	2.0L 4-cyl turbo	Automatic (S8)	All-Wheel Drive	22 / 32 / 26	+10%	$3,150	343
430i Coupe	2.0L 4-cyl turbo	Manual 6-spd	Rear-Wheel Drive	21 / 33 / 25	-7%	$3,300	351
440i Coupe	3.0L 6-cyl turbo	Automatic (S8)	Rear-Wheel Drive	21 / 32 / 25	-7%	$3,300	352
440i xDrive Coupe	3.0L 6-cyl turbo	Automatic (S8)	All-Wheel Drive	21 / 31 / 25	-7%	$3,300	357
440i Gran Coupe	3.0L 6-cyl turbo	Automatic (S8)	Rear-Wheel Drive	21 / 32 / 25	-7%	$3,300	352
440i xDrive Gran Coupe	3.0L 6-cyl turbo	Automatic (S8)	All-Wheel Drive	21 / 31 / 25	-7%	$3,300	357
440i Convertible	3.0L 6-cyl turbo	Automatic (S8)	Rear-Wheel Drive	21 / 29 / 24	+1%	$3,400	372
440i xDrive Convertible	3.0L 6-cyl turbo	Automatic (S8)	All-Wheel Drive	20 / 29 / 23	-3%	$3,550	382
440i xDrive Coupe	3.0L 6-cyl turbo	Manual 6-spd	All-Wheel Drive	19 / 29 / 23	-15%	$3,550	390
440i Coupe	3.0L 6-cyl turbo	Manual 6-spd	Rear-Wheel Drive	19 / 29 / 23	-15%	$3,550	389

6/10EPA fuel economy score (best version)

6/10EPA greenhouse gas score

Spend $3,250Fuel over 5 years vs. average new car

23.7 MPG2018 Subcompact Cars average

EPA estimates; "vs. class" is combined MPG against the 2018 EPA class average. How we calculate this →

Safety ratings & technology

NHTSA has not published 5-Star ratings for the 2018 BMW 4 Series.

Similar 2018 subcompact cars

Model	Best MPG / range	NHTSA overall	Recalls
2018 BMW 4 Series (this car)	27 MPG	Not rated	0
2018 BMW 3 Series	36 MPG	★★★★★	0
2018 Lexus IS	26 MPG	Not rated	1
2018 Audi A4	31 MPG	Not rated	4
2018 Mercedes-Benz C-Class	30 MPG	Not rated	0
2018 Tesla Model 3	310 mi	★★★★★	19
2018 Audi A3	36 MPG	★★★★★	7

Recalls (0)

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

Check your VIN for open recalls at NHTSA ↗

Not every 2018 BMW 4 Series is affected — only a VIN check confirms your car.

Owner-reported problems

No owner complaints for the 2018 BMW 4 Series in NHTSA's database since 2015.

Used 2018 BMW 4 Series buyer's checklist

Run the VIN at nhtsa.gov/recalls. No recalls on file, but check anyway.
Before you pay: service records, a history report and an independent inspection.

Generated by DecodedCars from NHTSA recalls and owner complaints for the 2018 BMW 4 Series. Not a substitute for a professional inspection.

Other 4 Series years

Compare all years →

Year	MPG (best)	Length	Overall	Recalls
2027 4 Series	31	–	Not rated	0
2026 4 Series	31	187.8 in	Not rated	0
2025 4 Series	31	187.8 in	Not rated	0
2024 4 Series	28	187.8 in	Not rated	0
2023 4 Series	28	188.2 in	Not rated	1
2022 4 Series	28	187.8 in	Not rated	0
2021 4 Series	29	187.8 in	Not rated	0
2020 4 Series	27	182.7 in	Not rated	0
2019 4 Series	27	182.7 in	Not rated	0
2017 4 Series	27	182.7 in	Not rated	0
2016 4 Series	27	182.7 in	Not rated	0
2015 4 Series	27	182.7 in	Not rated	0

Sources: EPA, NHTSA, Transport Canada, Wikimedia Commons. Not affiliated with NHTSA, the EPA or BMW. How we calculate this →