What Causes the Abnormal Noise in BYD Song's Transmission?

[VanBrady]

The reasons for abnormal noise in BYD Song's transmission are: 1. Bearing wear and damage; 2. Abnormal gear meshing clearance; 3. Gear tooth surface metal peeling, tooth breakage, or assembly misalignment; 4. Insufficient lubricant leading to poor lubrication; 5. Water ingress into the transmission; 6. Loose housing bolts; 7. Excessive clearance between the shift lever and shift fork groove in manual transmissions; 8. Long-term failure to replace transmission oil. The BYD Song has a body size of: length 4600mm, width 1830mm, height 1700mm, with a wheelbase of 2660mm. It is equipped with a 1.5T turbocharged engine, delivering a maximum power of 118 kW and a maximum torque of 245 Nm, paired with a 6-speed manual transmission.

[DiKeegan]

As a BYD Song owner who has driven the car for several years, I've encountered similar transmission noise issues. I remember one time when making a low-speed turn in the city, I heard a creaking sound that was particularly annoying. This kind of abnormal noise usually stems from several common causes: it could be due to aged or deteriorated transmission oil, where insufficient lubrication leads to increased gear friction; or it might be internal bearing wear, which tends to occur after tens of thousands of kilometers; additionally, damaged synchronizers or gear sets could also be the root cause, especially if you have aggressive driving habits and shift gears too forcefully. It's important to address it early—don't delay like I did, otherwise the noise will get worse and shifting will become jerky. I recommend checking the fluid first; if it's turned black or has an unusual odor, replace it immediately. If you can't handle it yourself, take it to a professional shop for diagnosis to prevent the problem from worsening.

[VanJulian]

From a mechanic's perspective, transmission noise is often caused by mechanical issues. In the BYD Song model, I've encountered many cases where abnormal sounds occur during acceleration or deceleration. The main causes include: loose or broken transmission bearings, which amplify friction noise; insufficient oil pressure or clogged oil passages affecting normal operation; and excessive gear clearance producing metal clanking sounds after wear. Troubleshooting requires systematic steps: first check oil pressure and quality, topping up or replacing if low. If that doesn't resolve it, open the transmission to inspect internal components like clutch plates or planetary gears. Remember not to rush into disassembly - conduct simple test drives first to confirm, otherwise effort may be wasted. Regular oil changes during maintenance can prevent most problems.

[VonAshlyn]

As a car enthusiast, I'm fascinated by transmission noises. Most of the abnormal sounds in BYD Song come from physical fatigue of gears or bearings. Imagine those high-speed rotating components - materials degrade and deform over time, like the rattling noise from worn aluminum alloy gears. Insufficient lubrication is another major factor; dirty oil leads to poor heat dissipation, causing noises. Driving habits significantly influence this too, with sudden acceleration/deceleration increasing load. Interestingly, some noises only appear at specific RPMs, like a humming sound around 2000 RPM. For diagnosis, you can record the sound or use mobile apps for analysis. Trying lower viscosity oil sometimes helps. Understanding the principles makes troubleshooting easier.

[IsabelLynn]

As a parent driving a BYD Song, I believe transmission noise must be taken seriously as it concerns the safety of the whole family. The noise could be a signal of gear or oil circuit problems, and it would be dangerous if the car suddenly stalls at high speed. Common causes include deteriorated oil quality, bearing corrosion, or internal component damage. If you hear regular noises like clicking sounds while driving, stop and check immediately. Never delay—take the car to a 4S shop for a comprehensive diagnosis to prevent small issues from turning into major failures. If the cost is not high, simply changing the oil might solve the problem. For regular maintenance, pay attention to checking the oil level periodically and prioritize smooth and safe driving.

[Harriet]

I've been driving this BYD Song for over a year, and recently there's been constant creaking sounds from the transmission. It's really annoying. Probably due to oil degradation or internal bearing wear, especially noticeable during low-speed turns. Another possible cause could be synchronizer fatigue, making gear shifts rough and noisy. The solution is simple: first check the transmission fluid - if it's cloudy or has metal particles, change it immediately. If that doesn't work, have a mechanic adjust the gear clearance. Drive gently in daily use, smooth operation can delay problems. If ignored, worsening noise might lead to expensive repairs. Regular maintenance is recommended for easy fixes.