2015 BMW

428i Convertible

Auto (S8), 4 cyl, 2.0 L, Turbo

BMW 428i: best and worst years

Overview

Body: Subcompact CarsEPA, from EPA, last updated 6/11/2026
Drivetrain: Rear-Wheel DriveEPA, from EPA, last updated 6/11/2026
Transmission: Automatic (S8)EPA, from EPA, last updated 6/11/2026
Powertrain: GasEPA, from EPA, last updated 6/11/2026
Fuel: PremiumEPA, from EPA, last updated 6/11/2026

Engine & performance

Cyl: 4EPA, from EPA, last updated 6/11/2026
Aspiration: TurbochargedEPA, from EPA, last updated 6/11/2026
Start-stop system: YesEPA, from EPA, last updated 6/11/2026

Efficiency

MPG Hwy: 33 mpgEPA, from EPA, last updated 6/11/2026
MPG City: 23 mpgEPA, from EPA, last updated 6/11/2026
MPG Comb: 26 mpgEPA, from EPA, last updated 6/11/2026
Fuel $/yr: $2,950EPA, from EPA, last updated 6/11/2026
CO₂: 338 g/miEPA, from EPA, last updated 6/11/2026
Eco Score: 7/10EPA, from EPA, last updated 6/11/2026
Smog score: 5/10
Elec. Range: 0 miEPA, from EPA, last updated 6/11/2026
SmartWay certified: Yes

Dimensions & capacity

Length: 183 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Width: 72 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Height: 54 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Wheelbase: 111 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Curb Weight: 3,635 lbNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026

Safety NHTSA, model year

Stability control (ESC): Standard
Forward-collision warning: Optional
Lane-departure warning: Optional
Recalls: 5
Owner complaints: 76
Reported injuries: 7

Feature availability

Which features come standard, cost extra, or are locked to a pricier trim arrives with the next data phase. Standard equipment shows here today.

Standard

Reported problems NHTSA owner complaints, model year

ELECTRICAL SYSTEM28%
ENGINE AND ENGINE COOLING21%
UNKNOWN OR OTHER10%
ENGINE8%
AIR BAGS6%
SERVICE BRAKES5%

Source: NHTSA owner complaints, 123 total.

BMW 428i: best and worst years

Federal investigations NHTSA defect investigations, model year

EA21002Openopened Sep 17, 2021AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
Desiccated Air Bag Inflator Rupture

Known issues manufacturer service bulletins, model year

283 service bulletins filed with NHTSA for this model year

May 1, 2026ENGINEB062626
Inlet Hose Return
Oct 25, 2024FUEL/PROPULSION SYSTEMB010722
Fuel tank limited warranty for leakage, due to defects in materials or workmanship, has been extended to 15 years/150,000 miles as determined from the original in-service date
Oct 25, 2024FUEL/PROPULSION SYSTEMB010322
Fuel tank limited warranty for leakage, due to defects in materials or workmanship, has been extended to 15 years/150,000 miles as determined from the original in-service date
Jan 16, 2024VISIBILITY:POWER WINDOW DEVICES AND CONTROLSB510819
The basic conditions for initializing the power windows are not met.
Jan 11, 2024ELECTRICAL SYSTEMB611305
The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle Ã¢ÂÂdischarged batteryÃ¢ÂÂ complaints.
Nov 8, 2023STRUCTUREB513218
The paint finish on the door jamb (above the door striker) is scratched due to the inner door cavity window seal.
Aug 1, 2023SEATSB520121
?The front seat will not calibrate/initialize, and the stored faults cannot be deleted.
May 1, 2023ELECTRICAL SYSTEMB651523
After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode) Enabling Codes repeatedly fails.
and 275 more

Source: NHTSA manufacturer communications (technical service bulletins).

Warranty manufacturer terms, by make

Basic: 4 yr / 50k mi
Powertrain: 4 yr / 50k mi
Roadside assistance: 4 yr
Maintenance: 3 yr / 36k mi
EV battery: 8 yr / 100k mi

Information is gathered on a best-effort basis from public sources, may be incomplete or out of date, and is not purchasing or financial advice. Verify with the manufacturer or dealer before buying.