Mazda North American Operations (Mazda) is recalling certain 2018 Mazda3 vehicles, equipped with an incorrect exhaust valve spring
An engine stall can increase the risk of a crash.
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moderate 7 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Of the 7 engine complaints filed for the 2018 Mazda Mazda3, here's the actual mileage breakdown — failures cluster heaviest at 100,000-125,000 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.
An engine stall can increase the risk of a crash.
The contact owns a 2018 Mazda Mazda3. The contact stated that while his girlfriend was driving at 65 MPH, several unknown warning lights illuminated, and the vehicle stalled. The contact stated that his girlfriend was able to safely drive the vehicle to her destination. The vehicle was then towed to the dealer. The vehicle was diagnosed with rod knocks. The contact was informed that the engine…
The contact owns a 2018 Mazda Mazda3. The contact stated while driving 60 MPH, the vehicle inadvertently lost motive power. After restarting the vehicle, the vehicle returned to normal functionality. No warning lights were illuminated. The vehicle was towed to an independent mechanic, who was unable to determine the cause of the failure. The vehicle was then towed to the dealer, who determined…
I was parked in a downtown garage, and the vehicle would not start after many attempts, after about 45 minutes of trying (waiting 5 minutes between tries). The engine would turn normally and sounded like it was trying to start, but didn't fully engage. It finally did after 45 mins, and I drove it to the local Mazda dealer in Honolulu. I noticed the check-engine light was on at that time (but…
It's a documented issue but not catastrophic. 7 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
Based on the 7 complaints filed, engine issues most often appear around 109,333 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.
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.