YearToAvoid

2021 BMW X3 Reliability Data: Problems & Recalls

Avoid The 2021 BMW X3 ranks 4th worst among 21 model years with a complaint index of 85 and carries 10 recall campaigns. Owners most often reported electrical system problems, followed by engine issues, resulting in an Avoid verdict relative to other X3 years.

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

YearToAvoid Scorecard

Complaint Index
85/100
#4 of 21 X3 years
Verdict
Avoid
vs. other years of this model
Complaints
110
unique NHTSA reports
Recalls
10
1 Park Outside
Crashes
5
reported in complaints
Fires
2
Injuries
2
Top issue
Electrical System
Best nearby year
2023
rated Best
NHTSA overall rating
5 / 5 ★
EPA combined MPG
23.5
21 city / 27 hwy
Injuries / deaths
2 / 0

Top 2021 BMW X3 problems

Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.

  1. Electrical System36 (33%)
  2. Engine29 (26%)
  3. Other24 (22%)
  4. Structure & Body13 (12%)
  5. Collision Avoidance & Cameras7 (6%)
  6. Brakes6 (5%)
  7. Fuel System6 (5%)
  8. Steering5 (5%)
  9. Suspension, Wheels & Tires5 (5%)
  10. Transmission & Powertrain5 (5%)

A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.

What owners report

  • Some owners report sudden unintended acceleration while parking or shifting into park, leading to collisions.
  • Engine compartment fires have been reported, in one case starting minutes after the vehicle was parked.
  • Forward collision avoidance and braking systems reportedly failed to prevent a crash after a lead vehicle stopped suddenly.
  • Parking distance control has been described as locking up the brakes unexpectedly during low-speed reversing.
  • Steering has been reported as unstable on highways, requiring constant corrections to keep the vehicle in its lane.
  • Electrical system complaints include the vehicle shutting down at a stoplight and the instrument console going black while driving.
2021 BMW X3 complaints: complaints filed per month7Oct 2020Jul 2021Feb 2022Aug 2023Aug 2024Apr 2025Dec 2025Jun 2026
110 complaints filed with NHTSA from Oct 2020 to Sep 2026; peak Nov 2024 (7).

2021 BMW X3 recalls

10 NHTSA recall campaigns list this model year.

  1. NHTSA 26V056000Jan 30, 2026Electrical System87,394 vehicles

    Electrical system:starter assembly

    BMW of North America, LLC (BMW) is recalling certain 2021-2023 Toyota Supra, 2022-2023 2 Series Coupe, 2021-2024 5 Series (xDrive), 2021-2022 Z4, 2022-2024 4 Series (Gran Coupe), 2021-2024 4 Series (Convertible and xDrive Convertible), 2021-2023 4 Series (Coupe), 2021-2024 3 Series, 2021-2023 X4, 2021-2024 X3 vehicles. Please see the recall report for a complete list of all models. The engine starter may overheat and catch fire due to wear on an internal component.

    Risk: Fire increases the risk of injury.

    Remedy: Dealers will replace the engine starter, free of charge. Owner notification letters were mailed July 21, 2026. Owners may contact BMW customer service at 1-800-525-7417 or Toyota's customer service at 1-800-331-4331. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning March 24, 2026.

  2. NHTSA 25V636000Sep 23, 2025Electrical System199,674 vehiclesPark Outside

    Electrical system:starter assembly:relay

    BMW of North America, LLC (BMW) is recalling certain 2019-2021 BMW 330i, 2019-2022 BMW Z4, 2020-2022 BMW 530i, X3, X4, Toyota Supra, 2021-2022 BMW 430i, 430i Convertible, and 2022 BMW 230i vehicles. The engine starter relay may corrode, causing the relay to overheat and short circuit.

    Risk: A short circuit in the starter relay may increase the risk of a fire.

    Remedy: Owners are advised to park their vehicles outside and away from structures until the remedy is complete. Dealers will replace the engine starter, free of charge. Owner notification letters were mailed February 6, 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 14, 2025.

  3. NHTSA 24V764000Oct 15, 2024Structure & Body8,725 vehicles

    Structure

    BMW of North America, LLC (BMW) is recalling certain 2018-2022 X3 sDrive30i, X3 xDrive30i, X3 M40i, and X3 M vehicles. The attachment for the rear cargo rail may become damaged in a rear crash and result in the cargo rail detaching.

    Risk: Interior rear cargo rail detachment during a crash can increase the risk of injury.

    Remedy: Dealers will replace the rear cargo rail attachment bolts, free of charge. Owner notification letters were mailed December 12, 2024. Owners may contact BMW customer service at 1-800-525-7417. Vehicles in this recall were previously remedied for this issue under recall number 24V-534 and will need to have the new repair completed.

See all 10 recalls for the 2021 BMW X3 →

2021 BMW X3 fuel economy and fuel cost

City
21 MPG
Highway
27 MPG
Combined
23.5 MPG
Annual fuel cost (EPA)
$3,375
15,000 mi/yr
Fuel
Premium
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2021 compared with other X3 years

Complaint Index by model year (0 = fewest issues, 100 = most)0255075100’05’06’07’08’09’10’11’12’13’14’15’16’17’18’19’20’21’22’23’24’25
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2019Avoid951701025
2020Avoid8010916 !23.5
2021Avoid851101023.5
2022Avoid7577723
2023Best015423

All BMW X3 years: best and worst →

Frequently asked questions

Is the 2021 BMW X3 reliable?
NHTSA data shows the 2021 X3 has a complaint index of 85, the 4th worst of 21 model years tracked, with an Avoid verdict relative to other X3 years.
What is the top problem area for the 2021 BMW X3?
Electrical System complaints lead with 36 complaints, 33% of the total, at a median mileage of 50,000 miles.
Does the 2021 BMW X3 have recalls?
NHTSA lists 10 recall campaigns for the 2021 X3, covering electrical system, structure and body, fuel system, and collision avoidance camera issues, though none are do-not-drive recalls.
How does the 2021 X3 compare to other X3 years?
Its complaint index of 85 is higher than most other X3 years; only the 2007, 2013, and 2019 model years scored higher, all also rated Avoid.
What fuel economy does the 2021 BMW X3 get?
EPA rates the 2021 X3 at 23.5 mpg combined (21 city / 27 highway), with an estimated annual fuel cost of $3,375.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.