BMW of North America, LLC
An electrical short increases the risk of a fire.
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moderate 13 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Of the 13 engine complaints filed for the 2018 BMW X5, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 mi.
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.
Engine accounts for 19% of all owner complaints filed against this vehicle, across 6 categories tracked.
An electrical short increases the risk of a fire.
The contact owns a 2018 BMW X5. The contact stated that while the vehicle was parked, there was an abnormal sound coming from the engine compartment. The check engine warning light was illuminated. The vehicle was taken to a dealer where it was diagnosed that the thermostat was stuck opened, causing the check engine warning light to illuminate and the transmission oil coolant heat exchanger to be…
It's a documented issue but not catastrophic. 13 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
Based on the 13 complaints filed, engine issues most often appear around 69,324 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.
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.
Yes — 1 active recall(s) cover engine issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.