Why is the M mode so loud?

[LeAaliyah]

The reason why the M mode is so loud is because manual upshifting has not been performed. Here is an introduction to the M mode: 1. Introduction: The M mode refers to a setting found on the fully manual function dial of a camera. 2. Function: In addition to this, the function dial of a fully manual camera also has P, A, and S modes. Generally, digital cameras refer to P, A, and S as partial manual functions, while M is called the fully manual function. 3. Method: The M mode can also refer to a gear position in cars with a manual-automatic transmission. This means it can shift gears automatically or manually. To shift manually, move the gear lever to the M+ or M- position. Pushing the gear lever towards M+ increases a gear, while pushing it towards M- decreases a gear.

[OscarRose]

When driving an automatic transmission car with manual mode, I noticed that the M mode is indeed quite loud, mainly due to higher engine RPM. In automatic mode, the computer shifts gears automatically, keeping the RPM at a quiet level. However, in manual mode, I have to select the gears myself, and sometimes I rev higher before shifting—like when climbing hills or accelerating—which makes the engine roar. Actually, this sound isn’t a bad thing; it gives me direct feedback—I can hear the car working hard, reminding me to upshift in time to protect the engine. Some cars are designed with exhaust systems that amplify the sound in manual mode to enhance driving enjoyment, just like how sportier models sound more thrilling. If the noise becomes excessive, it might indicate engine overload or exhaust issues, so regular maintenance checks are recommended. In short, the roar in M mode is part of the charm of performance cars—once you get used to it, you might even enjoy this 'growl,' as it gives a greater sense of control. Don’t forget to check tires and soundproofing pads to reduce additional vibration noise.

[StJulian]

As someone who frequently works on cars, I've found that the louder noise in M mode stems from the collaboration between the transmission and engine. In manual mode, when I operate the paddle shifters or gear lever, the engine RPM often exceeds the set points of automatic mode, resulting in increased roaring; if driving a turbocharged car, the quicker turbo response makes the sound even more pronounced. This isn't a defect but rather a design feature to let drivers sense the engine's condition—high RPM means greater power output. Relatedly, the transmission's gear ratio changes more directly in manual mode, transmitting vibrations into the cabin. Additionally, the exhaust system might be intentionally tuned to be louder in manual mode to enhance the sporty feel. I recommend avoiding sustained redline RPM in M mode during regular driving, as it can easily damage the engine; if the noise is unusually sharp, check for exhaust leaks or aging soundproofing materials. Understanding these aspects helps prevent misdiagnosing issues and extends the vehicle's lifespan.

[Pete]

I've been driving automatic transmission cars for many years, and recently tried the manual (M) mode. The engine suddenly became much louder, which startled me. After asking some car-savvy friends, they explained that in manual mode the engine has to rev higher by itself, unlike the smooth gear shifts in automatic mode, making the sound rougher. I think this relates to my driving habits - I tend to shift gears at higher RPMs, especially when driving on mountain roads or overtaking on highways, making the noise more noticeable. This isn't a malfunction; many cars are designed this way as a reminder to control speed. If the noise seems excessive, check for loose parts in the engine bay or try changing the engine oil. Simply put, the roar in M mode is part of the driving experience - you'll get used to it. Don't worry too much, and if it's really uncomfortable, just switch back to automatic mode.