Why is the Mazda startup sound loud?
2 Answers
Mazda's startup sound is loud due to its high compression ratio. Below is an introduction to related content about FAW Mazda: 1. Same price range: Many Chinese people may perceive Mazda as low-end because of its low entry threshold and its relatively niche status compared to other brands' models in the same price range. 2. Exterior: Including appearance, space, comfort, and interior, Mazda vehicles are not as refined or high-end, leading many to believe that driving a Mazda lacks prestige. 3. Advantages: Mazda cars are quite good, with no issues in quality. While the power may not be outstanding, the fuel consumption is very low. Most importantly, Mazda's handling is excellent, featuring an Acceleration Vectoring Control System, and the Atenza has long been known as the 'King of Corners'.
I've also been looking into the loud startup noise of Mazda vehicles recently. This actually stems from the cold-start design of their engines. The Skyactiv engines use an ultra-high compression ratio, and the fuel injectors deliberately spray extra fuel during startup to rapidly heat up the catalytic converter, causing the RPM to surge to around 1500 - hence the noticeable noise. Moreover, the exhaust manifold integrated cylinder head design makes the exhaust sound particularly pronounced when cold. However, pay close attention to the type of noise: if you hear persistent metallic knocking or increased vibration, it might indicate engine mount deterioration or belt tensioner issues. Additionally, in northern winters when oil viscosity increases, the added engine load can amplify startup noise. Ultimately, this is characteristic of Mazda's design - it's completely normal once the engine warms up for 30 seconds and the RPM drops.
