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BMW 430IModel year report

2021 BMW 430I Problems

Complaints
15filed with NHTSA
Median mileage
13,000miles, 3 complaints with mileage
Recalls
6campaigns on record
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA crash rating
—no overall rating published
EPA fuel economy
29 mpgcombined, 2.0L 4-cyl RWD · 26 city / 34 hwy

Sources: NHTSA records for the 2021 BMW 430I (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 15 consumer complaints for the 2021 BMW 430I. The part named most often is electrical system, with 6 complaints (40% of the total), followed by engine (3) and seat belts (3). 3 of the complaints include a mileage, and 100% of those were filed for vehicles with under 50,000 miles; the median is 13,000 miles. NHTSA lists 6 recall campaigns and 135 technical service bulletins for this model year. Electrical system complaints overlap with 3 recall campaigns covering the relay and 52 technical service bulletins filed under the same part. Engine complaints overlap with 5 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Electrical system: “Due to the severity of the current safety recall i am reaching out for BMW to supply a correction/remedy for the starter issue. This issue is causing added anxiety and this being my only reliable transportation is troublesome. If they are unable to fix the issue I am asking that they buy the car back so people can get other vehicles that don't run the risk of spontaneously combusting.”

NHTSA complaint #11701950, filed 2025-11

Engine: “The component that malfunctioned is the engine starter relay, which is subject to an open BMW/NHTSA safety recall (issued September 2025) due to potential corrosion causing overheating, short circuits, and vehicle fire risk. The recall specifically advises parking the vehicle outside and away from structures until repaired. …”

NHTSA complaint #11709689, filed 2026-01

Seat belts: “This automobile is designed with a seatbelt assembly which has an arm which reaches out to bring your your seatbelt. See pix. It is made with plastic and glue and is amazingly flimsy. I cannot believe that BMW created such a cute but flimsy design. It cannot withstand being used hundreds of time when the seatbelt is used. It broke (see pix). Now a rigid arm with a jagged edge comes out at eye level. Someone is going to become seriously injured!!!! BMW claims that this resulted from misuse and not faulty cheap design and wants me to pay for the repair!!!!!!! …”

NHTSA complaint #11597432, filed 2024-06

Other or unknown: “Since September 2025 no remedy is available for my vehicle. Due to safety concerns and recall instructions I’ve been unable to drive the car. I’ve called BMW customer service as well as dealer and no resolve.”

NHTSA complaint #11700127, filed 2025-11

Mileage when problems were reported

100% of the 3 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 200 and 33,000 miles.

33%0–1033%10–2533%25–500%50–750%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (3 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 13,000 miles.

Complaints by year filed

Trend: rising. Complaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

202120232024202520267
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Fuel economy and running cost

EPA ratings for each 2021 BMW 430I version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
430i Convertible RWD2.0L 4-cyl8-speed automatic243327$3,050
430i Coupe RWD2.0L 4-cyl8-speed automatic263429$2,850
430i xDrive Coupe AWD2.0L 4-cyl8-speed automatic243327$3,050

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

Recall details for the 2021 BMW 430I → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 135 on record; the latest 10 are shown.

See all 135 bulletins →

Other model years of the BMW 430I

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20256—1—30—Too new
2022818,0005—28—Not enough data
20211513,0006—29—Rising
2020576,2381—27—Not enough data
20192363,0003—27—Rising
20183654,3481—27Not compared (fewer than 3 comparable model years)Rising
20172557,7002—27Not compared (fewer than 3 comparable model years)Rising

All BMW 430I model years

Frequently asked questions

How many NHTSA complaints does the 2021 BMW 430I have?

NHTSA recorded 15 consumer complaints for the 2021 BMW 430I as of Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2021 BMW 430I is reported most often?

Electrical system is named most often, in 6 complaints (40% of the total), followed by engine with 3.

Has the 2021 BMW 430I been recalled?

NHTSA lists 6 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2021 BMW 430I get?

The EPA rates the 2021 BMW 430I (430i Coupe, 2.0L 4-cyl) at 29 mpg combined, 26 city and 34 highway, with an estimated annual fuel cost of $2,850 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2021 BMW 430I reported?

Among the 3 complaints that include a mileage, the median is 13,000 miles and the middle half falls between 200 and 33,000 miles; 100% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.