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2021 BMW 840iProblems, recalls & complaints

NHTSA has logged 0 owner complaints about the 2021 BMW 840i. It is covered by 5 safety recalls, and for recall 25V-644 the manufacturer reports only 74% of affected cars repaired.

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CarFlaw IndexNot enough dataHigher is better (0–100)
Safety recalls5Lowest repair rate 74%Owner complaints00 with a crash, fire or injuryTop problem0—

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through August 12, 2026. Updated daily.

Complaints by system

Where the 2021 BMW 840i has problems

0 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

5 recalls

2021 BMW 840i recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

74%repaired · 2026 Q3

Electrical system: starter assembly

Recall 25V-644 · Sep 25, 2025 · 145,102 vehicles · 106,842 repaired

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

Problem, fix and repair progress →

96%repaired · 2023 Q1

Sensing system: camera

Recall 21V-096 · Feb 19, 2021 · 13,858 vehicles · 13,324 repaired

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.

Problem, fix and repair progress →

97%repaired · 2023 Q1

Service brakes, hydraulic

Recall 21V-062 · Feb 10, 2021 · 893 vehicles · 868 repaired

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

Problem, fix and repair progress →

Show 1 more recall
98%repaired · 2022 Q4

Electrical system: 12v/24v/48v battery

Recall 20V-761 · Dec 9, 2020 · 812 vehicles · 796 repaired

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

Problem, fix and repair progress →

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with BMW.

Best & worst years

2021 vs. every other 840i year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the 840i median. How we score

'19'20'21'22'23'24'25'26
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated

Own a 2021 840i?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.