2021 BMW 840I Problems, Complaints & Recalls

Source: NHTSA · Updated Sep 26, 2025 · 0 owner complaints analyzed

Compared with other 840I years
Not enough data 4th of 7 for complaints
NHTSA crash rating
Not rated

NHTSA has received no owner complaints about the 2021 BMW 840I so far. There are 4 safety recalls covering this model year.

Complaints are unverified owner reports and are not adjusted for sales volume.

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2021 BMW 840I recalls (4)

Tap a recall to see the problem, the risk and the fix.

Electrical system:starter assemblySep 25, 2025 · NHTSA campaign 25V644000 · 145,102 vehicles

Problem: BMW of North America, LLC (BMW) is recalling certain 2020 340I, X6, 2020-2025 840I, 2020-2022 740LI, 2019-2020 X7, and X5 vehicles. After repeated attempts, the starter motor may overheat from an electrical overload.

Risk: An overheated starter motor can ignite nearby combustible material in the engine compartment, increasing the risk of a fire.

Fix: Dealers will replace the engine starter, free of charge. This recall includes vehicles repaired under recall 24V576 and those owners will need to have their vehicle repaired again. Owner notification letters were mailed February 9, 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 17, 2025.

Back over prevention: sensing system: camera; back over prevention:softwareFeb 19, 2021 · NHTSA campaign 21V096000 · 13,858 vehicles

Problem: 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."

Risk: If the driver relies on only the rearview camera image, the missing or reduced rearview image view can increase the risk of a crash or injury.

Fix: 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.

Service brakes, hydraulic:power assist:hydraulicFeb 10, 2021 · NHTSA campaign 21V062000 · 893 vehicles

Problem: 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 Coupe, X5 xDrive45e, 745 Le xDrive. The rotor and shaft within the integrated brake system may not have been welded properly and could separate during a hard braking event, possibly resulting in a loss of the Antilock Brake System (ABS) and braking assistance.

Risk: A loss of ABS and a reduction in braking assistance can increase the risk of a crash.

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.

Electrical system:12v/24v/48v batteryDec 9, 2020 · NHTSA campaign 20V761000 · 812 vehicles

Problem: 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 the 48-Volt battery and the starter-generator may not have been assembled properly, which can cause increased electrical resistance at the connections.

Risk: Increased electrical resistance can increase the risk of a fire.

Fix: BMW will notify owners, and dealers will inspect the connection between the 48-Volt battery and the starter-generator assembly, replacing it if necessary, free of charge. The recall is expected to begin April 12, 2021. Owners may contact BMW customer service at 1-800-525-7417.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

Other BMW 840I years

← 2020 840I · 2022 840I →

YearComplaintsRecalls
2025 840I01
2024 840I21
2023 840I02
2022 840I71
202104
2020 840I45
2019 840I02

See all BMW 840I problems by year, every BMW model, or the BMW VIN decoder.

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Frequently asked questions

What are the most common problems with the 2021 BMW 840I?

NHTSA has no owner complaints on file yet.

Was there a recall on the 2021 BMW 840I?

Yes, 4 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 2021 BMW 840I a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other 840I model years, the 2021 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.