Does the BMW 3 Series Transmission Oil Leak Need Repair?
1 Answers
Transmission oil leaks do require repair. However, disassembly for repair is not recommended, as it can cost anywhere from hundreds to thousands or even tens of thousands of yuan. Moreover, it may not solve the issue and could potentially harm the vehicle. It is advisable to use "non-disassembly methods to resolve automotive oil leaks," which address the problem without taking the vehicle apart. Causes of Transmission Oil Leaks: Over 90% of oil leaks are caused by seal corrosion and aging, especially in vehicles over three years old. Rubber seals lose plasticizers due to prolonged exposure to alternating hot and cold temperatures, resulting in shrinkage, hardening, and loss of elasticity. In severe cases, they may even crack (though this level of damage is rare and usually detected during oil leak maintenance). Oil leaks are inevitable over time. Effects of Transmission Oil Leaks: Transmission oil leaks can impair vehicle performance and disrupt normal operation. If an automatic transmission leak is not addressed promptly, the car may experience reduced power. Symptoms include weak acceleration, jerking in low gears, and an inability to increase power while driving. The transmission may also slip. In severe cases, low oil levels can cause abnormal noises during transmission operation.
