How to Solve the Transmission Oil Leakage Issue in Changan Eado?

[SanJanelle]

If it is not a problem with wear-prone parts and is confirmed to be caused by quality issues, you can apply to the manufacturer for a transmission replacement or free repair within the warranty period. Below are the reasons for transmission oil leakage: 1. Leakage in a transmission that has never been disassembled or repaired and has been used normally is mainly due to quality issues with the components or lax installation procedures by assembly line operators; 2. Leakage in a transmission that has never been disassembled or repaired but has experienced certain faults or accidents is mostly caused by aggressive driving leading to abnormal temperature rises in the transmission oil, resulting in poor sealing material performance; 3. Leakage in a transmission that has been disassembled and repaired is mainly due to improper disassembly during transmission oil changes or major repairs, leading to damage of sealing materials, replacement with substandard sealing materials, or failure to tighten bolts according to the standard repair manual torque specifications. All non-standard operations can become potential causes of transmission oil leakage.

[VanMelanie]

I've been driving a Changan Eado for several years and once encountered transmission oil seepage. At that time, I first wiped the oil stains from the chassis and the bottom of the transmission with a cloth, then drove for a few days before checking underneath the car to locate the leak point. If it's confirmed to be an oil seal issue, it's mostly caused by aging sealing rings or loose screws leading to leakage. You can try tightening the screws with a wrench yourself, but honestly, it's better not to force it. Just take it to a familiar repair shop or 4S店—they usually don't charge much to replace the sealing ring or gasket. Remember, don't delay fixing transmission oil leaks for too long, as low oil levels can affect shifting and lifespan. Regular maintenance checks on oil levels and sealing conditions can save you trouble. Prevention is simple: pay attention to oil stains under the chassis when parking—early detection means easier fixes. Don't wait until it gets worse and becomes more costly to repair.

[Ronan]

As a new car owner with little experience, when I noticed transmission oil leakage, I tried to save money by attempting a DIY fix—adding more transmission oil. However, this didn’t resolve the leakage issue and instead made it worse. Later, I learned that the main causes of leakage are usually a damaged oil seal or loose connections, which require professional replacement of parts. Simple DIY repairs carry high risks, and improper handling can lead to even greater expenses. Now, my advice is to visit a repair shop or authorized service center immediately upon detecting oil stains. Let technicians use diagnostic tools to inspect and replace sealing components—this saves both hassle and money in the long run. During daily driving, pay attention to whether gear shifts are smooth, and check the ground for leaks when parked to prevent minor issues from escalating into major repairs. Always ensure thorough cleaning of oil residues to avoid secondary contamination—safety comes first.

[ArielLee]

Transmission oil leakage is often caused by seal wear or high-temperature deformation leading to dripping. The solution involves first cleaning the oil traces, then driving for a few days to locate the leak point, such as the oil pan or interface. If necessary, replace the gasket or tighten the screws. Prompt action is essential as low oil levels affect lubrication, reduce component lifespan, and increase failure risks. Regularly check seal conditions during maintenance for early prevention.