Total Complaints
9 filings
BMW 540I · model year
9 NHTSA complaints, 3 crash reports, and 5 active recalls for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2021BMW540I carries 9 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 3 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2021 540I is service brakes with 3 filings, followed by electrical system:12v/24v/48v battery (1) and steering (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 5 active recall campaigns, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.
NHTSA currently has 34 investigation files overlapping the 2021 540I. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
9 filings
Crashes Reported
3 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| SERVICE BRAKES | 3 |
| ELECTRICAL SYSTEM:12V/24V/48V BATTERY | 1 |
| STEERING | 1 |
| WHEELS | 1 |
| SEAT BELTS | 1 |
| FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING | 1 |
| FORWARD COLLISION AVOIDANCE: WARNINGS | 1 |
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
BMW of North America, LLC (BMW) is recalling certain 2020-2021 X3 sDrive 30i, X3 xDrive 30i, X3M 40i, X3 xDrive 30e, X4 xDrive 30i, X4M 40i, 530i, 540i, 540i xDrive, M550i xDrive, M5, 550e, 550e xDrive, and 550e iPerformance vehicles. A small portion of the rearview image may be slightly obscured.
SEAT BELTS
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 (2
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
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 Co
ELECTRICAL SYSTEM:12V/24V/48V BATTERY
BMW of North America, LLC (BMW) is recalling certain 2021 M340i xDrive, M440i xDrive Coupe, 530i, 530i xDrive, 540i, 540i xDrive, 740Li, 740Li xDrive, 840i Gran Coupe, 840i xDrive Gran Coupe, X5 sDrive40i, X5 xDrive40i, X6 sDrive40i, X6 xDrive40i, and X7 xDrive40i vehicles. The connection between t
POWER TRAIN:DRIVELINE:DRIVESHAFT
BMW of North America, LLC (BMW) is recalling certain 2020-2021 530i xDrive, 540i xDrive and 2021 740Li xDrive vehicles. The output shafts (left/right) which transfer power from the driveshaft to the rear wheels may break due to a heat treatment error during supplier production.
In November 2025 my breaks quit working. I had AAA haul my car to a repair shop. They ran the codes on the car and found that it was related to a recall on 2021 BMW 540i's for the oil vacuum pump assembly, pan and gasket. I then had it towed to BMW and found out that my vin was not in the recall. BMW quoted me $4587 to repair this on a car with 45,000 miles. I then had it towed to a repair shop that replaced the oil vacuum pump assembly, oil pan, gasket and bolts for about $3700. I think that my vin should have been included in the recall. It was a obviously a common problem with my model and I should not have to pay this much on a car with 45,000 miles. I also had to pay $283.81 for BMW to diagnose it.
We notice the lose of braking power right after we started the car on 4/30 morning. The car was totally fine before that. took it to the BMW dealer they said the problem is "Vacuum/oil pump failing internally. fault for brake booster pressure switch, no brake boost" I find that there is a recall for the exact problem but it doesn't include my vehicle The "Part 573 Safety Recall Report 21V-598" stated that when It does happen it will cause damage to the oil/vacuum pump. I think recall 21V-598 should include my vehicle
Unintended car acceleration, with complete brake failure. No software warning icons in dash, no collision avoidance or ABS triggered even though car so equipped. Crashed into rear end of stationery vehicle,. [XXX] , MN police were called. Incident report # attached. (1st image) Western National Insurance Co. notified.Claim # attached (2nd image) Car will be inspected @ BMW dealership in Bloomington, MN 7/25/23. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Unintended car acceleration, with complete brake failure. No software warning icons in dash, no collision avoidance or ABS triggered even though car so equipped. Crashed into rear end of stationery vehicle,. [XXX] , MN police were called. Incident report # attached. (1st image) Western National Insurance Co. notified.Claim # attached (2nd image) Car will be inspected @ BMW dealership in Bloomington, MN 7/25/23. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Unintended car acceleration, with complete brake failure. No software warning icons in dash, no collision avoidance or ABS triggered even though car so equipped. Crashed into rear end of stationery vehicle,. [XXX] , MN police were called. Incident report # attached. (1st image) Western National Insurance Co. notified.Claim # attached (2nd image) Car will be inspected @ BMW dealership in Bloomington, MN 7/25/23. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The contact owns a 2021 BMW 540I. The contact stated that on multiple occasions, the front and rear passengerâs and driverâs side seat belts failed to detach after being connected. The contact stated that he forced the rear passengerâs side seat belt to detach with a screwdriver. No warning lights was illuminated. The vehicle was taken to the dealer where the dealer stated that candy was lodged in the buckle. The contact stated that the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and a case was opened. The failure mileage was approximately 10,000.
Mileage: 10,000
Intermittent vibration at highway speeds. Brought to the BMW dealership and they stated the right front wheel was out of round. I never hit a pothole or anything that would cause damage. The dealer "repaired" the wheel, but the problem still exists. Brought the vehicle back and am now told that BMW has started offering non-run flat tires on new cars. I feel that the run flat tires coupled with the low-profile wheels could be the issue. Also, feel that the wheels are poorly made and are prone to being warped.
Intermittent vibration at highway speeds. Brought to the BMW dealership and they stated the right front wheel was out of round. I never hit a pothole or anything that would cause damage. The dealer "repaired" the wheel, but the problem still exists. Brought the vehicle back and am now told that BMW has started offering non-run flat tires on new cars. I feel that the run flat tires coupled with the low-profile wheels could be the issue. Also, feel that the wheels are poorly made and are prone to being warped.
2021 BMW 540I. CONSUMER WRITES IN REGARDS TO MULTIPLE DEFECTS DUE TO BATTERY MANAGEMENT ISSUE. THE CONSUMER STATED THE VEHICLE HAS EXPERIENCED MULITPLE OCCASIONS OF FAILURES WITH THE BREAKING SYSTEM. THE DRIVER HAD TO PRESS THE PEDAL TO THE FLOOR IN ORDER TO STOP THE VEHICLE. THE EMERGENCY BRAKING SYSTEM ENGAGED WITHOUT WARNING, THE AUTOSTART ENGAGED INDEPENDTLY, AND LIGHTING/SPEAKER/SUNROOF MALFUNCTION.
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.