What are the disadvantages of a manual-automatic transmission?

[SanLawson]

The disadvantages of a manual-automatic transmission are as follows: The manual-automatic transmission has higher technical requirements, and the application of advanced technology usually means higher maintenance costs and more stringent usage requirements. Although many vehicles are equipped with manual-automatic transmissions, the manual mode is rarely used. Additionally, this technology is not yet fully mature, and compared to conventional automatic transmissions, it has slightly higher fuel consumption. More information about manual-automatic transmissions is as follows: 1. A manual-automatic transmission combines the manual shifting and automatic shifting of a car, integrating the advantages of both automatic and manual transmissions. 2. It minimizes the power loss of the transmission system. Essentially, it is still a type of automatic transmission, but because it incorporates the characteristics of manual shifting, allowing free adjustment of gears and engine speed, it offers more driving pleasure than a conventional automatic transmission.

[RiverLee]

I think the semi-automatic transmission has quite a few drawbacks. After driving this type of car for a while, firstly, the fuel consumption is relatively high. In city traffic jams, the automatic mode frequently shifts gears, resulting in significant power loss, and the fuel costs are often much higher than with a manual transmission. Then there's the expensive maintenance cost. Last time there was a minor issue with the transmission, replacing a small part cost several hundred, which was troublesome and time-consuming. Although the manual mode allows you to shift gears yourself, the response is much slower than a pure manual transmission, and there's always a bit of delay when accelerating, which isn't satisfying. Additionally, the complex structure adds weight, making the car less agile and more fuel-consuming on long trips. Although it's convenient not having to press the clutch, the overall cost-performance ratio isn't as good as a manual transmission. It's suitable for lazy people but not economical enough.

[Max]

As a car enthusiast who frequently tinkers with vehicles, I see the main drawbacks of the automated manual transmission in terms of performance and reliability. The transmission efficiency is relatively low, and the power delivery isn't direct when you step on the throttle, leading to higher fuel consumption, especially noticeable at high speeds. The manual mode operation isn't responsive enough, with noticeable delays, making it difficult to precisely control the RPM when racing. The structure is overly complex, making repairs expensive and difficult for regular shops to handle, often requiring specialized 4S dealerships, which adds to the cost. The added weight also affects the car's handling, making cornering less smooth. Compared to a pure manual transmission, it lacks that sense of unity between driver and machine. The advantage is the convenience of automatic mode, but the accumulated fuel and maintenance costs over time can be quite burdensome.

[AmyFitz]

Commuting daily with a manual-automatic transmission car has several drawbacks. In urban traffic jams, fuel consumption is high, with frequent gear shifts in automatic mode causing the fuel gauge to drop rapidly. Maintenance costs are expensive, especially the pricey transmission fluid replacements. Manual shifting can sometimes be jerky and unresponsive. The complex structure makes repairs troublesome when issues arise. The upside is the simplicity of automatic operation, but long-term costs are higher compared to manual transmissions.