
118 transmission is Aisin's 6AT. Introduction to transmission: A device that changes speed ratio and direction of motion. Used in automobiles, tractors, ships, machine tools, and various machines to alter the torque, speed, and direction of motion transmitted from the driving shaft to the driven shaft under different working conditions. Gear-driven transmissions generally consist of a housing and several pairs of gears. Functions of the transmission: Changes the driving force and speed of the vehicle (shifting) without altering the engine's speed and torque; allows the vehicle to move in reverse (reversing); enables the engine to idle without stalling (neutral).

As a 118 owner for several years, I'd like to talk about its transmission. The BMW 118 typically comes with an 8-speed automatic transmission, which operates very smoothly without any noticeable gear shifts, especially comfortable in urban traffic congestion. The fuel efficiency is also good, with an average consumption around 7 liters, making it worry-free even on long highway drives. I remember once driving in mountainous areas where the transmission responded super quickly, automatically adjusting gears according to the slopes—it was incredibly smart. This transmission is very reliable and rarely has issues, but if you frequently drive aggressively, it's recommended to check the transmission fluid every 60,000 kilometers to maintain optimal condition. Overall, it significantly enhances the driving pleasure and is highly recommended. Paired with this transmission, the BMW 118 is truly a great companion for daily commuting.

Having worked on quite a few 118 models, I must say the most common issue is with the 8-speed automatic transmission. It features a reasonable structural design and clear shifting logic. The driving experience is smooth and quiet, but over time, you might notice some jerking, especially at low speeds, often due to aging transmission fluid or dirty sensors. For maintenance, it's best to change the oil every 50,000 kilometers to extend its lifespan. Compared to the manual version, which is rarer but offers a stronger sense of control and is more suited for enthusiasts, this transmission has good heat resistance, making it ideal for city commuting. It also boasts high fuel efficiency and moderate maintenance costs. In short, it's a solid choice, but regular maintenance is key to avoiding minor issues.

In the car enthusiast circle, discussions about the 118 often highlight how exhilarating the manual transmission version is, with its smooth gear shifts and sheer driving pleasure. Unfortunately, it's quite rare nowadays. Most automatic variants feature an 8-speed design, offering quick response and quiet operation, while the manual mode still delivers strong handling feel. I've tested it on the highway—the acceleration is linear without being abrupt, complemented by an engine note that amplifies the sporty vibe. For daily city driving, it's fuel-efficient and hassle-free, with minimal maintenance worries. The transmission performs reliably, with few reported failures. If you value driving experience, this model is worth a try. Overall, it strikes a great balance.

For daily commuting with a 118, my personal experience is that the automatic transmission dominates, especially the 8-speed design. It's effortless to drive with no pressure, shifts incredibly fast with almost no noise, and doesn't tire you out even in heavy traffic. The fuel economy is quite good, averaging around 8 liters, and maintenance isn't troublesome—just routine checks. It's highly reliable; after several years of use, I've never encountered any issues. Compared to the manual version, it's more suitable for city life, offering simplicity and comfort in operation. If buying used, pay attention to any unusual noises from the transmission and get it repaired promptly. Overall, it's highly practical and meets all needs.

Following the evolution of the 118, manual transmissions were an option in earlier years, but the current models predominantly feature 8-speed automatic transmissions. The driving experience is smooth and efficient, with precise gear shifts enhancing overall performance. Fuel economy has improved significantly, averaging 6.5 liters, and the newer models are even more fuel-efficient. Compared to the older 6-speed automatic, the new 8-speed responds faster and reduces jerking in traffic. Maintenance-wise, regular oil changes are recommended to prevent long-term wear. Overall, it's reliable and well-suited for various road conditions, with thoughtful design and notable progress.


