N63TU1 CLASS ACTION SETTLEMENT SVC CAMPAIGN: OIL CONSUMPTION DIAGNOSIS/REPAIR
full bulletin at NHTSA ↗2015 BMW X6 engine problems
severe 3 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Complaints
3
Recalls
0
Avg fix
$3,100
1fire
When does it fail?
Of the 3 engine complaints filed for the 2015 BMW X6, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 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
No new NHTSA engine complaint has been filed on this vehicle in over 6 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Coolant is leaking from under the car which is equipped with the S63 engine. A low coolant warning might also be displayed (CC Message ID166).
full bulletin at NHTSA ↗Coolant is leaking from under the car which is equipped with the N63 engine. A low coolant warning might also be displayed (CC Message ID166).
full bulletin at NHTSA ↗For the eligible vehicles and for the issue described below, BMW of North America, LLC (BMW NA) is extending the limited warranty for the vehicle's delivery unit with in-tank pump to: 15 years/150,000 miles as determined by the vehicle's original in-service date.
full bulletin at NHTSA ↗CLASS ACTION SETTLEMENT: N54/N54T/N55 ELECTRIC ENGINE COOLANT PUMP . With the court's FINAL approval, BMW of North America, LLC (BMW NA) has entered a nationwide settlement with the plaintiffs in the following class action: Oliver, et al v. BMW NA, et al
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 3 most recent
Tl* the contact owns a 2015 BMW x6. While driving 60 MPH, the vehicle jerked, lost power, and the drive train malfunction warning indicator illuminated. The contact veered to the shoulder of the road and managed to drive at low speeds to park ave BMW (216 nj-17, rochelle park, nj 07662, (201) 843-7900). The dealer diagnosed that the crank shaft fractured and the engine needed to be replaced. The…
Tl* the contact owned a 2015 BMW x6. The contact stated that the vehicle as driven all morning and when the contact reached another patient home and parked the vehicle on the residential road. The contact was advised that the vehicle the vehicle was emitting smoke under the hood and within a moment, the vehicle was on fire. The fire department was present and extinguished the fire. However, the…
The contact owns a 2015 BMW X6. The contact stated that while driving at various speeds, the vehicle inadvertently shifted into neutral with the check engine warning light illuminated. The vehicle was not diagnosed nor repaired. The contact referenced NHTSA Campaign Number: 18V755000 (Engine and Engine Cooling) as a possible solution to the failure however, the Vin was not included. Neither the…
Had engine trouble with your 2015 BMW X6?
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 engine problem on the 2015 BMW X6?
It's a meaningful issue. 3 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Based on the 3 complaints filed, engine issues most often appear around 88,333 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 $3,100 for engine 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 engine?
No active recalls currently cover engine 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/2015/BMW/X6.
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.