Why does the start-stop system in the new Passat not respond?
2 Answers
The main reasons why the start-stop system in the new Passat does not respond are as follows: Accidentally turning it off: Vehicles equipped with an automatic start-stop function usually have the system enabled by default. If it suddenly stops working, it might be because the automatic start-stop button was accidentally pressed, causing the system to turn off. Not meeting the start-stop conditions: The automatic start-stop in the new Passat requires certain conditions to be met. Specifically, the seat belt must be fastened, the left front door must be closed, and the engine must be in the start position. Some situations prevent the function from activating: The engine has not reached normal operating temperature, the automatic air conditioning has not reached the preset temperature, the battery charge is insufficient, the steering wheel is turned after stopping, the vehicle is in emergency braking, or the vehicle is reversing.
As a frequent driver of the new Passat, I've researched the issue of the start-stop system not responding quite a bit. The most common cause is insufficient battery power. The start-stop function has high voltage requirements, and when the battery is aging or used for frequent short trips, causing the charge to drop below the standard level, the system will self-protect and deactivate. Engine temperature is also a critical factor. If the engine is too cold after a cold start, or overheats in summer traffic jams, the start-stop will automatically pause to prevent damage. There are also system setting issues, such as the steering wheel not being unlocked or insufficient brake pedal depth, which can cause the system to not respond. Check the battery voltage first. If the power is normal, then see if any warning lights are on. Timely visits to the 4S shop for system updates or sensor replacements can resolve the issue.
