BestCarRank
Bmw

2021 Bmw X4

Problems, Recalls & Reliability Report

Excellent Reliability

Quick Summary

The 2021 Bmw X4 has 7 owner complaints filed with NHTSA — that's 0.4x the segment average of 16. The most common issue is seats/restraints problems (29% of all complaints), specifically: both rear seat belts have broken off in the same spot. went to use the driver's side rear seat belt and found it had been broken (frayed off). moved to the passenger side and found the exact same thing. this could have been a bad situation if in an accident had occurred where they had not completel. There are 7 recalls issued for this model year.

7

Total Complaints

7

Recalls Issued

/5

Safety Stars

0.4x

vs Segment Avg

Known Problems(top 5 of 5)

SEATS/RESTRAINTS

2 complaints
29%
  • BOTH rear seat belts have broken off in the same spot. Went to use the driver's side rear seat belt and found it had been broken (frayed off). Moved to the passenger side and found the exact same thing. This could have been a bad situation if in an accident had occurred where they had not completel
  • Went to sit in driver rear seat and put on my seat belt and found it frayed apart. Thought this was od and tried the rear passenger side only to find the exact same thing. Took it to the dealer in Visalia, CA. They said that they have never seen anything like that before. After discovering that both
Typical onset: 50K miles Est. repair: $500

BOTH rear seat belts have broken off in the same spot. Went to use the driver's side rear seat belt and found it had been broken (frayed off). Moved to the passenger side and found the exact same thing. This could have been a bad situation if in an accident had occurred where they had not completel

— NHTSA complaint filing

Recalls (7)

BACK OVER PREVENTION: SENSING SYSTEM: CAMERA30/09/2020

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. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

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

Fix: BMW will notify owners, and dealers will inspect and, if necessary, program the rearview camera with updated software. The recall began November 18, 2020. Owners may contact BMW customer service at 1-800-525-7417.

Fuel Cost Calculator for 2021 Bmw X4

Live EIA prices
Per year
$3,001
Per month
$250
Per mile
25.0¢
MPG
16
City driving (worst-case MPG)
$3,429/yr
Highway driving (best-case MPG)
$2,527/yr

Based on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.

5-Year Gas Price History

EIA weekly retail data · 2021 → today
Current
$4.00
5-year low
$2.78
5-year high
$5.01
Since 2021
+27%

Source: US Energy Information Administration weekly retail gasoline prices.

Estimated Insurance Cost for 2021 Bmw X4

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.
Full coverage / year
$2,373
Full coverage / month
$198
Liability only / year
$732
vs US avg
+42%
How this estimate is calculated
US base full-coverage premium$1674
× state (US)1.00x
× vehicle class (suv-luxury)1.35x
× theft risk1.00x
× safety rating1.00x
× vehicle age1.05x
= Full coverage estimate$2373

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Bmw X4 Service Intervals

Oil change
10K mi / 12 mo
Tire rotation
10K mi
Brake fluid
24 months
Transmission fluid
60K mi
Engine coolant
100K mi
Spark plugs
60K mi
Cabin air filter
15K mi
Engine air filter
30K mi
Differential (AWD/4WD)
60K mi

Condition-Based Service (CBS) tells you exactly when service is due. Transmission fluid was labeled 'lifetime' but many owners service at 60K-100K.

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Bmw New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)
4 yr / 50K mi
Powertrain
4 yr / 50K mi
Hybrid/EV battery
8 yr / 100K mi
Corrosion (rust perforation)
12 yr / unlimited mi
Roadside assistance
4 yr / unlimited mi

Corrosion is unlimited miles for 12 years

These are the terms for a new Bmw. If you're buying a used 2021 X4, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Bmw dealer for VIN-specific remaining warranty.

Estimated Repair Costs

SEATS/RESTRAINTS(~50K mi)
$500
ENGINE(~50K mi)
$500
SUSPENSION(~50K mi)
$500
OTHER(~50K mi)
$500
TRANSMISSION(~50K mi)
$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 7 owner complaints for this specific year, here's what to check or ask about:

  • SEATS/RESTRAINTS: BOTH rear seat belts have broken off in the same spot. Went to use the driver's side rear seat belt and found it had been broken (frayed off). Moved to the passenger side and found the exact same thing. This could have been a bad situation if in an accident had occurred where they had not completel

    Typically appears around 50K miles. Repair cost ~$500

  • ENGINE: The contact owns a 2021 BMW X4. The contact received notification of NHTSA Campaign Number: 25V636000 (Electrical System). While the vehicle was in park(P), there were abnormal sounds coming from the engine. The contact stated that when the vehicle was shifted into drive(D) and the brake pedal was d

    Typically appears around 50K miles. Repair cost ~$500

  • SUSPENSION: What component or system failed or malfunctioned, and is it available for inspection upon request? - Suspension How was your safety or the safety of others put at risk? - Its giving head ache and body pain, driver & passengers are jumping / shaking / feeling very uncomfortable Has the problem been

    Typically appears around 50K miles. Repair cost ~$500

  • OTHER: transfer case AWD/xDrive system drivetrain components The dealer diagnosed a transfer case failure on the BMW X4 xDrive. Vehicle displayed drivetrain malfunction warning. Repair estimate exceeds $20,000. The vehicle has under 50,000 miles. The issue appears consistent with known xDrive transfer cas

    Typically appears around 50K miles. Repair cost ~$500

  • RECALLS: Verify all 7 recalls have been completed — free at any Bmw dealer
  • General: Get a pre-purchase inspection from an independent mechanic ($100-$200)

NHTSA Safety Rating

No NHTSA safety rating available

At a Glance

Complaints
7
Recalls
7
Fire reports
0
Crash reports
0
Injury reports
0
Segment avg
16

Check a Specific VIN

See recalls for YOUR 2021 Bmw X4