Reliable Auto DB

2021 BMW 430i reliability

Is it reliable?

NHTSA's file on the 2021 BMW 430i holds 0 complaints after 6 years, a rate of 0 per year. 430i years here cluster close together — the other years’ median is 0 complaints per year. NHTSA has 6 recalls on file, including Starter, Relay, and Seat belts.

2017 BMW 430i
Photo by Johannes Maximilian, resized from the original. Wikimedia Commons CC BY-SA 4.0
Complaints

0

Per year

0

Recalls

6

Years on the road

6

Next to 2020 and 2022

The 2020 430i has 0 complaints, 0 per year, and the 2022 has 0 complaints, 0 per year. The 2021 has about the same number of complaints per year as the 2020. The 2021 has about the same number of complaints per year as the 2022.

The complaint rate is complaints filed in this year’s first 3 years on the road, divided by however many of those years have passed. Recalls are a separate count. The numbers are for the US-market 2021 BMW 430i. How we count. Data as of .

Recalls (6)

Recall electrical system, starter 2026-01-30 · NHTSA campaign 26V056000
Summary BMW of North America, LLC (BMW) is recalling certain 2021-2023 Toyota Supra, 2022-2023 2 Series Coupe, 2021-2024 5 Series (xDrive), 2021-2022 Z4, 2022-2024 4 Series (Gran Coupe), 2021-2024 4 Series (Convertible and xDrive Convertible), 2021-2023 4 Series (Coupe), 2021-2024 3 Series, 2021-2023 X4, 2021-2024 X3 vehicles. Please see the recall report for a complete list of all models. The engine starter may overheat and catch fire due to wear on an internal component.
Remedy Dealers will replace the engine starter, free of charge. Owner notification letters were mailed July 21, 2026. Owners may contact BMW customer service at 1-800-525-7417 or Toyota's customer service at 1-800-331-4331. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning March 24, 2026.
Recall electrical system, starter, relay 2025-09-23 · NHTSA campaign 25V636000
Summary BMW of North America, LLC (BMW) is recalling certain 2019-2021 BMW 330i, 2019-2022 BMW Z4, 2020-2022 BMW 530i, X3, X4, Toyota Supra, 2021-2022 BMW 430i, 430i Convertible, and 2022 BMW 230i vehicles. The engine starter relay may corrode, causing the relay to overheat and short circuit.
Remedy Owners are advised to park their vehicles outside and away from structures until the remedy is complete. Dealers will replace the engine starter, free of charge. Owner notification letters were mailed February 6, 2026. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov November 14, 2025.
Recall Seat belts 2023-08-16 · NHTSA campaign 23V584000
Summary BMW of North America, LLC (BMW) is recalling certain 2019-2022 330i, 330i xDrive, M340i, 2022 430i Coupe, 2021-2022 430i, M440i Convertible, and 2020-2022 228i xDrive Gran Coupe vehicles. The receiver audio module control unit software may fail to properly generate audible seat belt warnings to the driver to fasten their seat belt. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Remedy Dealers will update the receiver audio module software, free of charge. Owner notification letters were mailed October 12, 2023. Owners may contact BMW customer service at 1-800-525-7417.
Recall Seat belts 2021-07-21 · NHTSA campaign 21V554000
Summary BMW of North America, LLC (BMW) is recalling certain 2021 2 Series (230i, 230i xDrive, M240i, M240i xDrive), 330e, 330e Xdrive, 4 Series Coupe (430i, 430i xDrive, M440i xDrive) M4 Coupe, M4 Competition Coupe, BMW 4 Series Convertible (430i, M440i), BMW X1 sDrive28i, xDrive28i, 2 Series Gran Coupe (228i, 228i xDrive, M235i xDrive), M2 Competition Coupe, 330i, 330i xDrive, M340i, M340i xDrive, M3, M3 Competition, 530i, 530i xDrive, 540i, 540i xDrive, MINI Hardtop 2 Door (Cooper, CooperS, JCW), X2 sDrive28i, X2 xDrive28i, X2 M35i, Z4 sDrive30i, Z4 M40i, MINI Hardtop 2 Door (Cooper SE), MINI Convertible (Cooper, Cooper S, JCW), MINI Clubman (Cooper S, Cooper S All4, JCW), MINI Countryman (Cooper, Cooper All4, Cooper S, Cooper S All4, JCW All4), Rolls Royce Ghost, MINI Countryman (Cooper S E All4), Rolls Royce Phantom, Rolls Royce Cullinan, and Toyota Supra vehicles. The passenger seat belt Automatic Locking Retractor (ALR) may deactivate early, before the webbing fully retracts. As such, these assemblies fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Remedy Dealers will inspect the seat belt retractors (including the seat belts) and, if necessary, replace the retractors, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact BMW customer service at 1-800-525-7417; 1-866-825-1525 (MINI); 1-877-877-3735 (Rolls Royce); and 1-888-270-9371 (Toyota).
Recall air bags, side and window, thorax air bag 2021-03-15 · NHTSA campaign 21V176000
Summary BMW of North America, LLC (BMW) is recalling certain 2021 430i and M440i 4 Series Convertible vehicles. In certain side-impact crashes, the head-thorax air bag may not deploy as intended.
Remedy Dealers will update the software, at no charge. All affected vehicles are still in dealer inventory, and therefore no owner letters will be mailed. The recall began March 9, 2021. Owners may contact BMW customer service at 1-800-525-7417.
Recall back-over prevention, sensing system, camera 2021-02-19 · NHTSA campaign 21V096000
Summary BMW of North America, LLC (BMW) is recalling certain 2019-2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, X4 xDrive30i, X4 M40i, M550i, X4M, X5 sDrive40i, X5 xDrive40i, X5 xDrive50i, X5M, X5 M50i, X7 xDrive40i, X7 xDrive50i, X7 M50i, Alpina XB7, 330i, 330i xDrive, M340i, M340i xDrive, and 8 Series Coupe, Convertible and Grand Coupe, 840i, 840i xDrive, M850i xDrive, M8, 2020-2021 530e, 530e xDrive, 330e, 330e xDrive, 745Le, 745Le xDrive, X5 xDrive45e, X3 xDrive30e, X6 sDrive40i, X6 xDrive40i, X6 xDrive50i, X6 M50i, X6M, 530i, 530i xDrive, 540i, 540i xDrive, M550i xDrive, M5, 740i, 740Li, 740Li xDrive, M760i Drive, M760Li xDrive, 750Li xDrive Alpina, Alpina B7 xDrive, and 2021 4 Series Coupe 430i, 430i xDrive, M440i xDrive vehicles. When shifting into Reverse, a small portion of the rearview image may be obscured, or the screen may not illuminate. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
Remedy BMW will notify owners, and dealers will inspect the rearview camera software and update it if necessary, free of charge. The recall began April 16, 2021. Owners may contact BMW customer service at 1-800-525-7417.

Complaints by component (0 total)

No complaints on file with NHTSA for this model year.

Fuel economy

Trim Engine Transmission Drive City Hwy Combined Annual fuel cost
430i convertible 2L, 4-cyl Automatic (8-speed) Rear-wheel drive 24 33 27 MPG $2950
430i Coupe 2L, 4-cyl Automatic (8-speed) Rear-wheel drive 26 34 29 MPG $2750
430i xDrive Coupe 2L, 4-cyl Automatic (8-speed) All-wheel drive 24 33 27 MPG $2950

Specs and fitment

G22/G23/G26 4 Series, 2021–present
Body styles Coupe, Convertible, Gran Coupe
Oil 0W-20 , 6.1 qt capacity
Tire size 225/40R19, 225/45R18, 255/35R19 (trim-dependent)

Known issues for this generation

NHTSA campaign 25V-636 recalls certain 2021–2022 BMW 430i and 430i Convertible vehicles (with 2022 230i, Z4, 330i, 530i, X3, X4, and Toyota Supra among others) because the engine starter relay may corrode, overheat, and short-circuit, increasing fire risk. Owners are advised to park outside and away from structures until the remedy; dealers replace the engine starter free of charge. About 196,355 units are listed across all named models in the campaign acknowledgment.

Compare

Next year 2022 BMW 430i See every BMW 430i model year →

Frequently asked questions

Is the 2021 BMW 430i reliable?

NHTSA's file on the 2021 BMW 430i holds 0 complaints after 6 years, a rate of 0 per year. 430i years here cluster close together — the other years’ median is 0 complaints per year. NHTSA has 6 recalls on file, including Starter, Relay, and Seat belts.

Is the 2021 BMW 430i more reliable than the years next to it?

The 2020 430i has 0 complaints, 0 per year, and the 2022 has 0 complaints, 0 per year. The 2021 has about the same number of complaints per year as the 2020. The 2021 has about the same number of complaints per year as the 2022.

Has the 2021 BMW 430i been recalled?

The 2021 BMW 430i has 6 recalls on file with NHTSA. See the recalls table on this page for dates, components, and remedies.

How many complaints have owners filed about the 2021 BMW 430i?

Owners have filed 0 complaints about the 2021 BMW 430i with NHTSA.

What mpg does a 2021 BMW 430i get?

EPA-rated combined fuel economy for the 2021 BMW 430i is 27.7 MPG. See the fuel economy table on this page for city and highway figures by engine and transmission.

What engine oil does a US BMW 430i use?

0W-20 With filter, about 6.1 qt is commonly listed for this generation—confirm in the owner manual.

What tire sizes fit a US BMW 430i?

Published US specs commonly list front 225/40R19, 225/45R18, 255/35R19 (trim-dependent) and rear 225/40R19, 225/45R18, 255/35R19 (trim-dependent); confirm on the door jamb placard for your trim.

What NHTSA recalls affect the US BMW 430i?

NHTSA campaign 25V-636 recalls certain 2021–2022 BMW 430i and 430i Convertible vehicles (with 2022 230i, Z4, 330i, 530i, X3, X4, and Toyota Supra among others) because the engine starter relay may corrode, overheat, and short-circuit, increasing fire risk. Owners are advised to park outside and away from structures until the remedy; dealers replace the engine starter free of charge. About 196,355 units are listed across all named models in the campaign acknowledgment.