What are the disadvantages of a CVT transmission?
3 Answers
CVT transmissions have the following advantages and disadvantages: 1. Advantages: Excellent fuel economy. A CVT can achieve continuously variable transmission over a wide range, allowing for optimal matching between the drivetrain and engine conditions. By using the transmission's stepless speed adjustment to adapt to various vehicle speeds, the engine can operate at its optimal conditions for extended periods, thereby improving combustion efficiency and fuel economy. 2. Disadvantages: Limited maximum torque capacity and slightly lower stability. CVT transmissions use chains (or belts, etc.) for power transmission, so when handling high torque, the requirements for the transmission chain are quite stringent (no breaking, slipping, etc.). As a result, early CVT transmissions could not be installed in high-power vehicle models.
I've been driving a CVT car for several years, and the driving experience is really not great. When accelerating, it always feels a bit sluggish—the engine revs up with a humming sound, but the speed doesn't pick up quickly. People call it the 'rubber band effect.' Especially when overtaking or going uphill, even if you press the accelerator hard, there's no direct push-back feeling, which makes me miss the crisp responsiveness of old-school automatic transmissions. This issue isn't too noticeable in congested city driving, but it becomes obvious on highways. Some friends say you'll get used to it, but I recommend test-driving it in different road conditions before buying to see if you can tolerate it. Additionally, the slow response of CVTs might also be related to computer control—the system is tuned conservatively for fuel efficiency, but it sacrifices driving fun. Overall, if you're a driving enthusiast, you might find it disappointing because it lacks the direct control feel of traditional transmissions.
As someone who frequently helps friends with car repairs, I must say CVT transmission repairs are too costly. These transmissions are prone to issues like chain wear or sensor failures, and repairs often cost thousands. I've seen too many cars break down after just tens of thousands of kilometers. Replacing the entire transmission at a dealership is outrageously expensive, while smaller shops may be cheaper but struggle to find parts and lack professional expertise, often leaving hidden problems. The CVT's inherent design makes it less durable, especially aging quickly under high loads. When buying a car, check the warranty terms carefully—some brands offer decent five-year coverage. Otherwise, long-term maintenance costs may outweigh the fuel savings. Overall, CVTs aren't a reliable choice. I recommend DCT or AT transmissions, which have far fewer issues.
