Last updated: 2026-10-10

RELIABILITY SCORE: 69/100 (GOOD)

2021 BMW X7 Reliability Report

The 2021 BMW X7 has good reliability, but drivetrain failures, mainly the front differential and transfer case, can bring repair bills near $10,000.

Full Breakdown Compare Models

Recalls

Complaints

Complaint Rate

1.1per 10,000 sold

Est. Repair Cost

$1127

Annual Fuel Cost

$4,400

Detailed Score Breakdown

Complaint Severity83/100

Component-weighted complaints normalized by sales volume

Repair Costs50/100

Independent repair cost ratings

Recall Impact59/100

Recall count weighted by severity

Issue Diversity85/100

Breadth of reported problem categories

The Verdict

Consider

Mid-pack among X7 years, with front differential and transfer case failures as the main risk and nine recalls on record.

Top Issues to Watch

POWER TRAIN (6)
ENGINE (5)
STEERING (5)

Generation & Refresh (US)

Post-Redesign (Year 3)

2021 is year 3 of the First generation (G07).

Redesigned for the 2019 model year.
Well-established in its generation — most early issues should be resolved.
A refresh arrives in 2023.
1st generation X7 (US).

What this means for buyers

Well into the generation cycle — most design and manufacturing issues should be resolved by now.

2019: First generation (G07) Launch

Generation start — new platform.

2021: This Model Year

2021 is year 3 of the First generation (G07).

2023: Mid-Cycle Refresh

Updated features and styling tweaks.

Should You Buy the 2021 BMW X7?

Reliability is good, but only close to average against other 2021 SUVs. Among the eight scored X7 years, this one sits in the middle. The 2020 rates about the same. The 2022 rates better, with fewer complaints and far fewer recalls.

The drivetrain causes the most trouble. Front differential failure shows up between about 42,000 and 59,000 miles, with dealer repairs of roughly $9,000 to $11,500. Transfer case damage brings shuddering or jerking in low-speed turns, and a fluid service often does not cure it. Some owners report sudden engine failure, often after a "drivetrain malfunction" warning. Two electrical complaints involve fire, one with flames in the engine bay and no warning. Federal recall records cover the electrical system, seats, steering and service brakes, among other areas.

Ask for full repair records, especially any differential, transfer case or engine work, and confirm every recall was completed. A 2022 is worth pricing alongside.

Compared to the 2022 BMW X7, which scored 3 points higher. See also the 2020 BMW X7 for an earlier comparison.

Pros

+Acceptable reliability score
+Below-average complaint rate for SUV
+Well-established generation
+Only 36 complaints reported

Cons

−Above-average recall count
−POWER TRAIN: Front differential failure is the most common report (6 complaints)
−ENGINE: Sudden engine failure appears in several reports, often starting with a... (5 complaints)
−2 fire incidents reported in owner complaints

Compare 2021 BMW X7 With

2021 Toyota Sequoia

Reliability: 72/100

Good

2021 Nissan Armada

Reliability: 74/100

Good

Common Problem Categories

Safety

LOW RISK

9 manufacturer recalls issued

Other

HIGH RISK

POWER TRAIN (6)
ENGINE (5)

See detailed breakdown by component ↓

Recall Overview

recalls on record

The 2021 BMW X7 has 9 recalls on record, which is above average. A high count can flag multiple component concerns, though it also shows the manufacturer is actively addressing known issues.

NHTSA.gov →

Complaint Breakdown

1.1

per 10,000 sold

Segment avg: 16.7

LowAvgHigh

Very Low

Safety Incidents

Crashes

Fires

Injuries

Deaths

Data sourced from NHTSA complaint filings and manufacturer recall notices. Complaint narratives are owner-reported.

2021 BMW X7 Recall Details

9 recalls have been issued for the 2021 BMW X7. All recall repairs are performed free of charge at authorized dealerships.

20V7610002020-12-09

ELECTRICAL SYSTEM

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.

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.

22V6700002022-09-07

SEATS

BMW of North America, LLC (BMW) is recalling certain 2019-2022 BMW X7 xDrive40i, X7 Drive50i, X7 M50i vehicles with third-row seats. One or more of the compression springs that lock the backrest may not have been installed properly, and could dislodge or detach.

Consequence

In a crash, the seat backrest may not fully lock, increasing the risk of injury.

Remedy

Dealers will inspect the third-row seat and, if necessary, remove and reinstall improperly installed compression springs, and reinstall any missing springs, free of charge. Owner notification letters were mailed November 4, 2022. Owners may contact BMW customer service at 1-800-525-7417.

22V2670002022-04-20

VISIBILITY

BMW of North America, LLC (BMW) is recalling certain 2022 4 Series Gran Coupe (430i, 430i xDrive, M440i xDrive); 2019-2022 X5 sDrive40i, X5 xDrive40i, X5 xDrive50i, X5 M50i, X5M; 2021-2022 X5 xdrive45e; 2020-2022 X6 sDrive40i, X6 xDrive40i, X6 xDrive50i, X6M and 2019-2023 X7 xDrive40i, X7 xDrive50i, X7 M50i, X7 xDrive60i, X7 M60i, X7M, Alpina XB7 vehicles. The roof function control unit may be programmed incorrectly, allowing the sunroof to close without the key fob present inside the vehicle. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 118, "Power-Operated Window Systems."

Consequence

A sunroof that closes without the key fob present inside the vehicle can increase the risk of injury.

Remedy

Dealers will reprogram the roof function control unit, free of charge. Owner notification letters were mailed June 20, 2022. Owners may contact BMW customer service at 1-800-525-7417.

VIN History Report

Buying a used 2021 BMW X7? Check its history first

Power train problems lead owner complaints about the 2021 BMW X7, and 9 recalls were issued for it. A VIN check shows whether this car's recall work was done, plus accident, title, and odometer history.

Accidents
Open Recalls
Title History
Odometer Rollback

2021 BMW X7 NHTSA Safety Ratings

Crash Test Results by Configuration (expand)

Gas Powertrain

Rollover risk: 0.0%

Safety Technologies

Dynamic Head Restraints (Driver, Front Passenger)Head Restraint (Not Available)Advanced Belt Feature (Standard)Adjustable Upper Belt Anchorage (Rear Seat)Seat Belt Reminder System (Driver, Front Passenger)Frontal Air Bag (Driver, Front Passenger)Curtain (Driver, Front Passenger, Rear Seat, 3rd row)Torso/Pelvis (Driver, Front Passenger, Rear Seat)Knee (Driver, Front Passenger)Additional Air Bags (-)Meets Side Air Bag Out-of-Position Requirements (Yes)LATCH Locations (Rear Seat, 3rd row)Safety Power Windows (Anti-Pinch) (Standard)Safety Power Windows (Anti-Pinch) locations (Driver, Front Passenger, Rear Seat)

View full safety data on NHTSA.gov →

BMW X7Repair Costs & Maintenance

Maintenance Rating

2.5

Based on NHTSA complaint patterns, recall severity, and publicly available cost benchmarks.

Est. Annual Maintenance

$1127

Repair Frequency

0.7

unscheduled repair visits per year

Category-level averages derived from publicly available industry reports (AAA, CarMD). Model-level estimates produced by Auto Reliability Index.

MPG & Annual Running Costs

Gas

17 MPG

Running cost: $5,550/yr

Fuel + repair

15 city / 21 hwy MPG

Hybrid

21 MPG

Running cost: $4,700/yr

Fuel + repair

19 city / 24 hwy MPG

Running cost includes EPA fuel-cost estimate and independent repair-cost data (repair cost estimated at model level). Excludes routine maintenance, depreciation, and insurance. Data as of 2021 EPA label cycle.

Gas trims

Trim	Drive	Trans.	City	Hwy	Comb	Fuel Cost
X7 M50i 4.4L 8-cyl	All-Wheel Drive	Automatic (S8)	15	21	17	$4,400

Hybrid trims

Trim	Drive	Trans.	City	Hwy	Comb	Fuel Cost
X7 xDrive40i 3.0L 6-cyl	All-Wheel Drive	Automatic (S8)	19	24	21	$3,550

Used Buying Checklist

Key things to inspect or verify before purchasing a 2021 BMW X7.

Check service records for front differential or transfer case replacement, and ask whether either repair has been quoted.
Make slow, tight turns while accelerating in a parking lot and feel for shudder, jerking or skipping.
Look under the front of the car for differential oil leaks and smell for burning oil after the test drive.
Have stored codes read for drivetrain malfunction or low oil pressure, and listen for engine knocking or grinding.
Fold and raise the second- and third-row power seats several times and confirm each one latches with no warning.
Inspect the sunroof glass for cracks or chips and confirm both daytime running lights work.
Start the car several times and watch for a "Repeat Start Attempt" message or slow cranking.
Right after starting, shift into Drive and confirm the brake pedal presses normally, not hard and high.

2021 BMW X7 Common Problems by Component

36 owner complaints grouped by vehicle system.

POWER TRAIN (6)ENGINE (5)STEERING (5)FUEL/PROPULSION SYSTEM (3)ELECTRICAL SYSTEM (3)SEATS (3)UNKNOWN OR OTHER (3)EXTERIOR LIGHTING (2)Other (6)

POWER TRAIN

6 complaints

Front differential failure is the most common report. It shows up between about 42K and 59,000 miles, and dealer repairs run from roughly $9k to $11,500. Some owners say the replacement part is the same design as the original. Transfer case damage causes shuddering and jerking in low-speed turns, plus a loss of power while turning and accelerating. In one case the car lost all drive to the rear wheels. Other reports raise concerns about the oil pump and describe a water pump pulley that broke apart. That threw the accessory belt, cut alternator power and caused a sudden coolant loss.

6 complaints total

ENGINE

5 complaints

Sudden engine failure appears in several reports, often starting with a "drivetrain malfunction" warning. Symptoms include a low oil pressure warning, knocking or grinding noises, a burning smell and limited power. Failures are reported anywhere from about 32,000 to 87000 miles. Repair estimates reach $15,000, and one quote for a replacement engine was $46,500. In one case the failure followed fan blades breaking off and puncturing the radiator. Another report filed here describes a front differential failure that leaked and burned oil with no dash warning. Losing oil pressure while driving can leave the car disabled.

5 complaints total

STEERING

5 complaints

Shuddering, jerking or a skipping feeling at low speed is the main complaint. It is worst when accelerating while turning, pulling away from a stop or climbing a hill. Owners trace it to the transfer case. A fluid service done under a technical bulletin often fails to fix it, and replacement then costs about $9,000–$10,000. Some dealers cannot reproduce the problem. A separate report describes the car jerking into the next lane during a highway merge. Driver assistance errors appeared, the screens went black and power steering had failed weeks earlier.

5 complaints total

FUEL/PROPULSION SYSTEM (3 complaints)

FUEL/PROPULSION SYSTEM

3 complaints

The most serious report is a sudden loss of drive from a failed high-pressure fuel pump. The car stopped in traffic and set itself to Park with no warning. It could not be shifted into Neutral to push it clear or load it for towing. Another filing raises concern about the engine oil pump's plastic internal part, which can fracture and drop oil pressure, although that car had not failed. A third report complains about a short fuel gauge reading but names a different manufacturer.

3 complaints total

ELECTRICAL SYSTEM (3 complaints)

ELECTRICAL SYSTEM

3 complaintsSafety-related

Fire is the main concern: 2 of the 3 reports involve fire. In one, a burning smell and vapor from the vents turned into flames in the engine bay, with no warning beforehand and a family inside. In the other, smoke filled the cabin and a box on the rear seat caught fire. The third report describes hard starting. The car fails on the first try, shows a "Repeat Start Attempt" message and strains to turn over on the second try.

3 complaints total2 fires

SEATS (3 complaints)

SEATS

3 complaints

Power-folding seats that jam or fail to latch are the common thread. Third-row seats get stuck upright while the motor runs and the latch will not release. Others show a "third row rear seats not fully locked" warning with passengers seated, in one case at about 43,000 miles. A dealer suggested loose compression springs inside the seat. Second-row seats have also folded down and locked in place. Owners worry that an unlatched seatback could collapse in a crash or trap a child.

3 complaints total

UNKNOWN OR OTHER (3 complaints)

UNKNOWN OR OTHER

3 complaints

The main pattern is sunroof glass shattering while driving. Owners report no impact, debris or flying objects at the moment it broke. Glass that breaks suddenly at speed can startle the driver and scatter shards. The one other report here names a front differential failure and adds no detail. It matches the drivetrain failures described under other headings.

3 complaints total

EXTERIOR LIGHTING (2 complaints)

EXTERIOR LIGHTING

2 complaints

Sunroof glass breaking while driving shows up here too, with one injury reported. The closed glass panel shattered mostly outward. The other report involves a burned-out LED daytime running light that also damaged its module, so the whole headlight had to be replaced for $8000 at about 28k miles. BMW refused to cover it because the car's warranty had expired by age, although it was still within the mileage limit. A failed headlight can also mean failing a state inspection.

2 complaints total1 injury

SERVICE BRAKES (2 complaints)

SERVICE BRAKES

2 complaints

The more serious report is a brake pedal that sticks high and hard after starting the car and shifting into Drive. The car lurches forward as the brakes ease. This lasts 10 to 60 seconds before the pedal returns to normal, with no warning lights. Dealer software updates did not stop it from happening again. The other complaint is grinding when braking that gets louder while turning. The dealer called it pad and rotor stiction and said it was normal operation.

2 complaints total

ENGINE AND ENGINE COOLING (1 complaints)

ENGINE AND ENGINE COOLING

1 complaint

2025-11-18

The contact owns a 2021 BMW X7. The contact stated that while driving at 20 MPH and depressing the accelerator pedal, the vehicle went into LIMP Mode. The message "Pull Over and Turn Off Your Car - You Have Lost All the Water In the Radiator" was displayed. The contact was able to pull over to the side of the road. The vehicle was able to restart, but was towed to Hawkeye Motorsports LLC, where it was diagnosed that the water pump pulley had shattered. The mechanic replaced the coolant pump, coolant lines, and belts. Additionally, the coolant lines were tested. The vehicle was repaired. The manufacturer was contacted and informed that reimbursement assistance could only be provided if the VIN was included in a related recall. The manufacturer referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 79,000.

When Do 2021 BMW X7 Problems Start?

Based on owner complaint patterns, here's when common issues tend to appear.

42,000–59,000 milesFront differential failure

Best & Worst BMW X7 Years

Best BMW X7 Years to Buy

Based on reliability index score

Top Pick

Good

BMW X7 Reliability Score Trend

Scores 0–100. Higher is better. Current year highlighted.

BMW X7 reliability scores by year
Year	Score	Rating
2019	68/100	Good
2020	67/100	Good
2021	69/100	Good
2022	72/100	Good
2023	69/100	Good
2024	70/100	Good
2025	71/100	Good
2026	62/100	Good

BMW X7 Reliability Compared to Other Years

Reliability scores compared across model years
Year	Score	vs Prior Year	Rating	Recalls	Complaints
2026	62/100	-9	Good	2	4
2025	71/100	+1	Good	4	26
2024	70/100	+1	Good	7	62
2023	69/100	-3	Good	8	41
2022	72/100	+3	Good	2	18
2021(selected)	69/100	+2	Good	9	36
2020	67/100	-1	Good	12	52
2019	68/100	—	Good	11	44

Frequently Asked Questions

Is the 2021 BMW X7 reliable?

Yes, it has a good reliability standing, though it is only close to average among 2021 SUVs. Within the X7 line it sits in the middle of eight scored years. Owners filed 36 complaints, and the ones filed describe costly drivetrain and engine failures.

What are the most common problems with the 2021 BMW X7?

Power train complaints lead, followed by engine and steering. Owners report front differential failure, transfer case damage that causes shuddering in turns, and sudden engine failure. Electrical complaints are fewer but include two involving fire. Most of the costly failures involve the drivetrain.

Does the 2021 BMW X7 have front differential problems?

Yes, it is the most common power train complaint. Failures are reported between about 42,000 and 59,000 miles. Dealer repairs run from roughly $9,000 to $11,500, and some owners say the replacement part is the same design as the original.

How many recalls does the 2021 BMW X7 have?

Federal records show 9 recalls. They cover the electrical system, seats, visibility, back over prevention, service brakes, steering, exterior lighting, and equipment and tires. Check with a dealer, using the VIN, that each one has been completed on the car you are considering.

Is the 2022 BMW X7 more reliable than the 2021?

Federal and owner records favor the 2022, which rates better. It has 18 complaints and 2 recalls, against 36 complaints and 9 recalls for the 2021. The 2020 rates about the same as the 2021, with 52 complaints and 12 recalls.

Don’t buy a 2021 BMW X7 without checking its VIN first — hidden accidents, title issues, and open recalls could cost you thousands.

Look Up a VIN →

How we score the 2021 BMW X7

Of the four inputs behind this score, the 2021 BMW X7 does best on how many systems draw complaints (85/100) and worst on repair costs (50/100). Scores weight complaint severity at 35%, repair costs at 30%, recall impact at 20%, and the spread of complaints across systems at 15%, with complaint counts adjusted for US sales. Read the full methodology.

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