What are the reasons for the Volkswagen Tayron's auto start-stop not working?
2 Answers
Volkswagen Tayron showing auto start-stop failure is generally due to insufficient battery storage, as auto start-stop vehicles have higher battery requirements, or throttle valve malfunctions. When Volkswagen owners encounter auto start-stop issues, it is recommended to visit a 4S shop or auto repair shop as soon as possible to have a technician diagnose the cause, avoiding unnecessary losses for the owner. Below are the reasons for auto start-stop not working: Insufficient Battery: The vehicle has not reached the ideal working condition, possibly due to insufficient battery charge or low voltage. Coolant Too High or Too Low: The engine coolant temperature is either too high or too low. Excessive Temperature Difference: The vehicle does not meet the driver's settings, with the set air conditioning temperature differing too much from the interior temperature. Low-Speed Driving: During low-speed driving, the starting speed does not reach 5 km/h, with repeated acceleration and speed below 15 km/h.
As an auto mechanic, I've dealt with many Volkswagen Tayron issues. The auto start-stop system not working is usually caused by insufficient battery power, as frequent starts and stops increase power consumption, especially in older vehicles or after short trips where the battery tends to drain due to aging. Another common reason is sensor failure - for instance, if the temperature sensor detects the engine hasn't fully warmed up or the AC is operating under heavy load, the system automatically disables start-stop. Additionally, not pressing the brake pedal firmly enough or excessive steering wheel turning can trigger safety mechanisms. I've seen owners repeatedly return for repairs over this, only to find wiring shorts or ECU setting errors. I recommend first testing battery voltage - anything below 12 volts might be the culprit, or simply visit a 4S shop to scan for trouble codes rather than risking component damage through DIY attempts. Regular charging during routine maintenance can prevent this issue.