Experiencing rough shifting or other problems with your 09a Transmission? Before considering expensive repairs, some simple DIY steps might solve the issue. Many common 09a transmission problems stem from contaminated fluid and filters.
Often, valve bodies are wrongly blamed, when the real culprit is dirty fluid hindering performance. Cleaning the valve body can sometimes help, but focusing on fluid and solenoids is often more effective and budget-friendly. Solenoids, in particular, can get stuck due to debris. Removing and soaking them, then bench testing to ensure movement, can resolve many no-code issues.
Experimenting with fluids can also be beneficial. Pentosin 202 hydraulic fluid has shown positive results in cleaning and improving the performance of various transmissions, including 09a units in VW and Audi vehicles, as well as American and Japanese cars. Its thinner viscosity helps it act as a cleaning agent, reaching and lubricating stuck components. This approach has been successful in resolving torque converter and shift issues.
Don’t be misled by claims that only specific fluids can be used. Practical experience shows that alternative fluids can be effective and cost-saving. By focusing on fluid changes, solenoid cleaning, and considering alternative fluids like Pentosin 202, you might be able to resolve your 09a transmission problems without breaking the bank.
