What is the situation when the Audi transmission fault returns to normal after restarting?
2 Answers
This is an occasional fault, most likely caused by a disorder in the circuit system. After restarting, it returns to normal and can continue to be used. The following is a related introduction about the transmission: 1. Main functions: Change the transmission ratio, expand the range of changes in driving wheel torque and speed to adapt to frequently changing driving conditions, while allowing the engine to work under favorable conditions. When the engine rotation direction remains unchanged, the car can only reverse; by using neutral gear, the power transmission is interrupted, allowing the engine to start, shift gears, and facilitate gear shifting or power output of the transmission. 2. Working principle: Manual transmissions mainly consist of gears and shafts, achieving speed and torque changes through different gear combinations; while automatic transmissions (AT) are composed of hydraulic torque converters, planetary gears, and hydraulic control systems, achieving speed and torque changes through hydraulic transmission and gear combinations.
Last time I drove my friend's Audi A6, I also encountered the issue where the transmission warning light came on but returned to normal after a restart. I asked a mechanic, and he said the most common cause is a temporary glitch in the control computer software, just like a phone freezing and working fine after a reboot. Audi's DSG transmissions are prone to this, especially after high temperatures or rough driving. Another possibility is disrupted sensor signals, such as the wheel speed or temperature sensors being affected by dust or moisture, causing incorrect data that leads the computer to misjudge a fault. During a restart, the system performs a self-check again, and it returns to normal. However, don’t underestimate this issue—if ignored for too long, it could lead to serious problems like clutch wear or loose wiring, which may gradually worsen and cause the transmission to suddenly lock up. I recommend going to a 4S shop or a chain repair shop to plug in an OBD scanner and read the fault codes. If there are stored codes, address them with targeted repairs. Spending a few hundred dollars early can save you thousands in major repairs later. By the way, you can also check the transmission fluid yourself—if it’s too dark or dirty, it’s time for a change.
