After stopping for a red light for a right turn vehicle does not accelerate in hybrid mode when commanded to do so. No alarms are present. Car is shown to be in Drive. After numerous attempts to switch transmission gears and restart the engine, switched to gas (sport) mode and was able to accelerate the car. Occurred on at least 3 occasions. A dangerous event because drivers behind the car could…
2021 BMW X5 powertrain problems
severe 22 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Complaints
22
Recalls
0
Avg fix
$2,500
3crashes
4injuries
When does it fail?
Of the 22 powertrain complaints filed for the 2021 BMW X5, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Among the 17 model years of BMW X5 in our records for powertrain problems, this one ranks #3 by owner-complaint volume.
Powertrain accounts for 23% of all owner complaints filed against this vehicle, across 5 categories tracked.
What owners are reporting 7 most recent
Unknown car started shaking on the highway and suddenly lost power. Shown error 'power train mailfunction'
I am writing to formally file a complaint and request an expansion of recall coverage regarding a starter motor failure on my 2021 BMW X5, which occurred at approximately 38,000 miles. Recently, my vehicle experienced a sudden failure to start. After inspection, the issue was diagnosed as a starter malfunction. I am aware that BMW has issued a recall addressing starter-related defects for…
Car had 2 alerts 2.5 hrs into journey, having gone I-675 to 16: 1. Drivetrain malfunction 2. Power supply. I had stopped for food. I got back in, turned on the engine, and these alerts came on immediately. I called BMW, they said car should not be driven. Had it towed to hilton head BMW. They've had it two days and say this is related to the recalled battery and they have no idea as of today…
The contact owns a 2021 BMW X5. The contact stated that while driving at various speeds, there was an abnormal grinding and clanking sound coming from the front end of the vehicle. The vehicle was taken to the local dealer, where it was diagnosed that the front differential was faulty and needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure, but no…
The vehicle shakes at low speeds with a jolt and vibration when turning. When I pressed the accelerator from a standstill, the gas pedal broke off from its floor mounted bracket.
Drivetrain - A drivetrain malfunction message came-up a few weeks back on the high-way indicating “It is safe to drive but with reduced power” and the vehicle suddenly slowed down on the highway with less power to drive putting us in unsafe condition. The vehicle has less than 25,000 miles. The incident was reported to a BMW dealer for reporting to BMW and with a request for investigation and…
Had powertrain trouble with your 2021 BMW X5?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2021 BMW X5?
It's a meaningful issue. 22 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Based on the 22 complaints filed, powertrain issues most often appear around 17,520 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2021/BMW/X5.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.