Model year guide

2021 BMW M4

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2021 BMW M4 is worth — from official NHTSA and EPA data. 31 on record.

2021 BMW M4 — representative photo
Representative photo

2021 BMW M4 at a glance

Safety recalls2
Owner complaints1

Included: that car's specs and build sheet, model-year recall campaigns and a fair price.

2021 BMW M4 recalls 2

Seat Belts NHTSA Campaign #21V554000 · 21/07/2021

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…

Fix: 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 Ro…

Service Brakes, Hydraulic:power Assist:hydraulic NHTSA Campaign #21V062000 · 10/02/2021

BMW of North America, LLC (BMW) is recalling certain 2020-2021 8 Series Coupe, Grand Coupe and convertible 840i, 840i xDrive, M850i xDrive, M8 and 740 Li, 740 Li xDrive, 750 Li xDrive, M760 Li xDrive, X6 sDrive40i, X6 xDrive40i, X6 xdrive50i, X6 M50i, X6M, and 2019-2021 X5 sDrive40i, X5 xDrive40i, X5 xDrive50i, X5 M50i, X5M, X7 xDrive40i, X7 xDrive50i, X7 M50i, and 2021 M3, M3 Competition, M4 Coupe, M4 Competition C…

Fix: BMW will notify owners, and dealers will replace the integrated brake system, free of charge. Owner notification letters were mailed on May 25, 2021. Owners may contact BMW customer service at 1-800-525-7417.

Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.

2021 BMW M4 common problems

The most-reported problem areas across all 1 owner complaint filed with NHTSA — and what to check before you buy.

Service Brakes
Brakes should feel firm and quiet — no grinding, pulsing or pulling. Check for an ABS light and uneven pad/rotor wear.

Dimensions & weight

Length
188.6 in
Width
74.4 in
Height
54.7 in
Wheelbase
112.2 in
Curb weight
3,748 lb
Front track
62.2 in
Rear track
62.6 in

Manufacturer-reported figures for the 2021 BMW M4. Source: Transport Canada vehicle specifications via NHTSA.

Investigations & service bulletins

Manufacturer service bulletins 72

Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 72.

While driving on a smooth and/or unevenroad, a “cracking” sound is heard from therear wheel arch area (highlighted in orange) on either the right or left side.

Bulletin B410725 · Structure · Jan 2026

While driving on a smooth and/or uneven road, a “cracking” sound is heard from the rear wheel arch area (highlighted in orange) on either the right or left side.

Bulletin B410725 · Structure · Aug 2025

An interference noise (groaning noise) can be heard from within the heating and air-conditioning unit in thecenter of the instrument panel. The groaning noise always occurs when either a ventilation flap, air stratification flap or the recirculated airflap mov…

Bulletin B640422 · Electrical System, Visibility · Feb 2024

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 “di…

Bulletin B611305 · Electrical System · Jan 2024

With the vehicle is on a lift and the front struts are in the extended position, there may be a cracking and orclicking type noise when turning the steering wheel left/right. See attached video V31 01 24. The sound can reoccur when the vehicle is lowered, and…

Bulletin B310124 · Suspension · Jan 2024

At low outside temperatures (below 40 degrees F) and slow driving speeds (i.e. when parking, maneuvering)with a large steering angle, the front end can be slightly axially misaligned. This can be felt (jerking)/ heard via an acoustic acknowledgement (clunk) as…

Bulletin B360121 · Steering · Jan 2024

The Central Information Display goes black intermittently due to resets of the Head Unit (HU-H3). FaultB7F8F9 – “HU-H: Reset” will be stored in the HU-H3.

Bulletin B610524 · Electrical System, Equipment · Jan 2024

Customer states one of the front seats is inoperative. The seat heater and power supply are inoperative. During the vehicle test, the seat module does not respond. The power supply fuse for the seat module isfound to have blown.

Bulletin B521723 · Electrical System, Seats · Jan 2024

Functional noises (squealing/honking) when braking shortly before the vehicle comes to a stop. CAUSE Material-

Bulletin B340714 · Service Brakes, Hydraulic · Oct 2023

Headlight check control (CC) message 128 "High beam headlight failure" is displayed. The following fault codes are stored during a vehicle test: 80419A - Left high-beam headlight: Short circuit and/or 8041A5 - light outputs: Number of permitted short circuit c…

Bulletin B630821 · Electrical System, Exterior Lighting · Jun 2023

Source: NHTSA Office of Defects Investigation, listed for the M4 RWD. Model-year data, not specific to one car.

About the BMW M4

The BMW M4 is a high-performance version of the BMW 4 Series automobile developed by BMW's motorsport division, BMW M GmbH, that has been built since 2014.

From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.

2021 BMW M4 vehicles on record

Other BMW M4 model years

2021 BMW M4 — frequently asked questions

Does the 2021 BMW M4 have any safety recalls?

NHTSA lists 2 recall campaigns for the 2021 BMW M4. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are done at no charge.

What are the most common problems with the 2021 BMW M4?

Across all 1 owner complaint filed with NHTSA, the most-reported problem areas are service brakes.

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.