Does Auto Start-Stop Affect the Engine?

[AxelFitz]

Auto start-stop has a certain impact on the engine, but the effect is minimal and will not affect the engine's lifespan. When car manufacturers design engines with auto start-stop, the system is rated for 500,000 cycles. Even if the engine starts 100 times a day, it would take about 17 to 18 years to reach that limit. The real significant impact on the engine occurs during cold starts, when the oil system and lubrication are not yet fully operational. In contrast, auto start-stop involves hot starts, where the engine is already lubricated. Even with frequent starts and stops, engine wear is minimal. The start-stop function only stops the engine from running, but the oil system remains active, ensuring good lubrication when the car restarts, which also helps protect the engine.