The TPS is a sensor located on the throttle body of a vehicle that monitors the position of the throttle pedal. Its primary function is to relay information to the engine control unit (ECU) regarding the Crankshaft Position Sensing of the throttle valve.
4. Four-Wheel Drive (4WD): Four-wheel drive systems are designed for off-road use and provide enhanced traction by sending power to all four wheels. 4WD is often found in trucks and SUVs built for rugged terrain.
Another common concern among Audi A3 owners is related to engine performance. While Audi is known for producing powerful and efficient engines, some drivers have reported issues such as engine stalling, rough idling, and decreased fuel efficiency.