Does the Transmission Filter Need to Be Replaced?
2 Answers
The transmission filter needs to be replaced, typically when the transmission fluid is changed. Common types of automatic transmission filters include those for dual-clutch transmissions (DCT), automatic transmissions (AT), and continuously variable transmissions (CVT). Here is a brief introduction to the three types of transmissions: (1) Dual-clutch transmissions (DCT) are currently very popular due to their fast gear-shifting speed and high transmission efficiency. The structure of a DCT is similar to that of a manual transmission, but it features two sets of clutches—one for odd-numbered gears and the other for even-numbered gears. (2) Automatic transmissions (AT) are the most widely used, technologically mature, and have the highest production and R&D costs. They offer excellent gear-shifting smoothness and durability. (3) Continuously variable transmissions (CVT) have a simple structure, compact size, and lightweight design. Their production cost is relatively low, making them a common choice for many affordable family cars.
Last time I took my automatic transmission car for maintenance, the technician specifically checked the transmission filter. He said this thing is like a mask for the transmission, blocking metal shavings and sludge. Automatic transmission cars usually need it replaced every 40,000-60,000 km, while manual transmissions can last longer. If the filter gets completely clogged and oil flow is restricted, the transmission will grind dry like a fish out of water. I've seen cases where people didn't change the filter, and eventually the whole transmission started making loud rattling noises - the repair costs could reach half the car's value. Now I always follow the maintenance manual for regular checks, and it's most cost-effective to replace the filter during oil changes. When driving normally, try to avoid constantly hauling heavy loads - keeping the transmission load light can extend the filter's lifespan.
