Audi A3 transmission requires maintenance. The claim that the transmission is maintenance-free is a misconception; regular inspections, servicing, and maintenance are crucial. Consequences of not maintaining the transmission: Long-term use of the transmission without maintenance can lead to system blockages, wear, and corrosion, resulting in poor fluid flow in the torque converter and sluggish gear shifting. Additionally, moisture and dust from the air can enter the transmission through the breather holes, and prolonged lack of maintenance can cause transmission failure or even render it unusable. Therefore, it is essential to regularly replace the transmission fluid and perform maintenance. Necessity of replacing transmission fluid: Transmission fluid primarily serves to lubricate the gears inside the transmission, clean metal debris, reduce operating temperatures, and protect the inner walls of the transmission. After the transmission reaches a certain mileage, the fluid can degrade due to high temperatures and pressure, leading to various transmission issues. Transmission fluid replacement intervals: For manual transmissions, attention should be paid to fluid degradation around 20,000 kilometers. If shifting becomes stiff or gear engagement is difficult, it may be time to replace the transmission fluid. For automatic transmissions, the fluid is typically replaced every 60,000 to 100,000 kilometers, depending on the transmission model. However, if the vehicle is frequently driven at high speeds, earlier replacement should be considered.
