2021 BMW M340I — Owner-Reported Problems

NHTSA Office of Defects Investigation Snapshot 2026-08-22 11 complaints · 6 recalls
Most-reported system: ENGINE (7 complaints · 63.6%)
Safety signals:
  • Crashes 0
  • Fires 0
  • Injuries 0
  • Deaths 0
Compare with 2020 →
NHTSA Consumer Complaints Snapshot 2026-08-21 Open source record Read our complete data methodology →

Complaint counts reflect self-selected reports and are not normalised for production sales volume. We publish no reliability scores, superlatives, or vehicle rankings.

Component Problem Distribution

Share of owner complaints filed for each vehicle system (unaffected by sales volume)

Component Problem Distribution ENGINE appears in 7 of 11 owner complaints (63.6%) in this vehicle snapshot. ENGINE: 7 complaints, 63.6% of reports ENGINE 7 · 63.6% POWER TRAIN: 3 complaints, 27.3% of reports POWER TRAIN 3 · 27.3% STEERING: 1 complaints, 9.1% of reports STEERING 1 · 9.1% UNKNOWN OR OTHER: 1 complaints, 9.1% of reports UNKNOWN OR OTHER 1 · 9.1% 0% 25% 50% 75% 100%

UNKNOWN OR OTHER is an NHTSA classification artifact and is always listed last.

View component data as a table
System / Component Complaints Share of Reports Safety Reports (Crashes / Fires)
ENGINE 7 63.6% 0 crashes · 0 fires
POWER TRAIN 3 27.3% 0 crashes · 0 fires
STEERING 1 9.1% 0 crashes · 0 fires
UNKNOWN OR OTHER 1 9.1% 0 crashes · 0 fires
NHTSA Consumer Complaints, NHTSA Safety Recalls, and NHTSA Defect Investigations Snapshot 2026-08-22 Open source record Read our complete data methodology →

Complaint counts reflect self-selected reports and are not normalised for production sales volume. We publish no reliability scores, superlatives, or vehicle rankings.

Problem & Recall Timeline

Observed complaint volume and manufacturer recall actions over time

Problem & Recall Timeline Owner reports in this snapshot begin in Oct 2022; the first recall shown was reported in Dec 2020. 2022-Q4: 1 owner reports 1 2023-Q4: 2 owner reports 2 2025-Q2: 1 owner reports 1 2025-Q4: 1 owner reports 1 2026-Q1: 1 owner reports 1 2026-Q2: 4 owner reports 4 2026-Q3: 1 owner reports 1 Owner reports Dec 2020 Jul 2026 Recall campaign 20V761000 ◆ Recall campaign 20V761000 Recall campaign 21V096000 ◆ Recall campaign 21V096000 Recall campaign 21V298000 ◆ Recall campaign 21V298000 Recall campaign 21V554000 ◆ Recall campaign 21V554000 Recall campaign 23V211000 ◆ Recall campaign 23V211000 Recall campaign 23V584000 ◆ Recall campaign 23V584000 Investigation DP22005 ● Investigation DP22005
View timeline records as a table
Date Record type Count Record identifier
2022-Q4 Owner reports 1
2023-Q4 Owner reports 2
2025-Q2 Owner reports 1
2025-Q4 Owner reports 1
2026-Q1 Owner reports 1
2026-Q2 Owner reports 4
2026-Q3 Owner reports 1
Recall campaign 1 20V761000
Recall campaign 1 21V096000
Recall campaign 1 21V298000
Recall campaign 1 21V554000
Recall campaign 1 23V211000
Recall campaign 1 23V584000
Defect investigation 1 DP22005
NHTSA Safety Recalls Snapshot 2026-08-22 Open source record Read our complete data methodology →

Safety Recalls (6)

Official safety recall campaigns filed with NHTSA

  1. Manufacturer action

    Recall campaign 20V761000

    Report date
    Component:
    ELECTRICAL SYSTEM
    Consequence:
    Increased electrical resistance can increase the risk of a fire.
    Remedy:
    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.
    View authoritative NHTSA record →

  2. Manufacturer action

    Recall campaign 21V096000

    Report date
    Component:
    BACK OVER PREVENTION
    Consequence:
    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.
    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.
    View authoritative NHTSA record →

  3. Manufacturer action

    Recall campaign 21V298000

    Report date
    Component:
    SEAT BELTS
    Consequence:
    An improperly installed seat belt assembly may not restrain an occupant as expected, increasing the risk of injury.
    Remedy:
    BMW will notify owners, and dealers will inspect the front seat belt buckle assembly connection and, if necessary, replace it, free of charge. Owner notification letters were mailed on June 25, 2021. Owners may contact BMW customer service at 1-800-525-7417.
    View authoritative NHTSA record →

  4. Manufacturer action

    Recall campaign 21V554000

    Report date
    Component:
    Not available in the source record
    Consequence:
    During a crash, a seat belt retractor that does not function as intended increases the risk of injury.
    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).
    View authoritative NHTSA record →

  5. Manufacturer action

    Recall campaign 23V211000

    Report date
    Component:
    Not available in the source record
    Consequence:
    An improperly welded seat frame may not properly restrain the occupant during a crash, increasing the risk of injury.
    Remedy:
    Dealers will replace the seat frame and back rest, free of charge. Owner notification letters were mailed May 22, 2023. Owners may contact BMW customer service at 1-800-525-7417.
    View authoritative NHTSA record →

  6. Manufacturer action

    Recall campaign 23V584000

    Report date
    Component:
    ELECTRICAL SYSTEM
    Consequence:
    An audible chime that does not properly alert the driver to fasten their seat belt increases the risk of injury in a crash.
    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.
    View authoritative NHTSA record →
NHTSA Consumer Complaints Snapshot 2026-08-21 Open source record Read our complete data methodology →

Complaint counts reflect self-selected reports and are not normalised for production sales volume. We publish no reliability scores, superlatives, or vehicle rankings.

Complaint Narrative Explorer

Verbatim owner-reported defect narratives from NHTSA public records

Data: NHTSA Office of Defects Investigation · snapshot 2026-08-21
Safety incident filters
Showing 0 of 11 complaints · page 1 of 1

No complaints match the current filters.
EPA Fuel Economy Database Snapshot 2026-08-21 Open source record Read our complete data methodology →

Estimated Ownership Cost

EPA fuel economy ratings and annual operating cost estimates

Data: US EPA Fuel Economy Guide · snapshot 2026-08-21
Supported range: 1,000–60,000 miles per year
Supported range: $1.50–$10.00 per gallon
55% city45% highway
Estimate unavailable

EPA fuel-economy data is unavailable for this vehicle.

No estimate is shown when required EPA values are unavailable.

 Open Ownership Cost Calculator →

Adjacent Model Years

Immediate preceding and succeeding model year records

NHTSA Consumer Complaints Snapshot 2026-08-21 Open source record Read our complete data methodology →

Complaint counts reflect self-selected reports and are not normalised for production sales volume. We publish no reliability scores, superlatives, or vehicle rankings.

Methodology & Data Integrity

Data sourced from NHTSA Office of Defects Investigation. Snapshot date: 2026-08-21.

Read our complete data methodology → Sources