2018 BMW 340i — humming rises with road speed, not engine RPM
2018 BMW 340i xDrive, about 119,000 miles. There is a low hum that rises with road speed regardless of engine RPM.
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2018 BMW 340i xDrive, about 119,000 miles. There is a low hum that rises with road speed regardless of engine RPM.
2016 Ford Focus ST, about 155,500 miles. The engine shut off at a stop once, restarted right away, and has been normal since.
2023 Audi S5 Sportback, about 44,000 miles. High-mileage work means mileage-based intervals arrive constantly.