That's fine if the vehicle is completely stopped, but those systems should always be available if the car is moving.Īudi owners often complain that those systems shut off way too early, well before the vehicle has come to a stop. Depending on the situation, the transmission, power steering, and power brakes are also disengaged. The engine isn't the only thing that shuts down when the start-stop system activates. Power Steering and Brakes Shut Off When Needed ∞ Complaints about the transmission hesitating or lurching can be particularly dangerous in a busy intersection. Not only will acceleration be delayed, but multiple owners say the acceleration isn't dependable even once the car gets rolling. With Audi vehicles that isn't always the case and acceleration can suffer. The theory being that the engine and transmission will be ready by the time the driver's foot reaches the accelerator.
#Disattivare start e stop audi a3 driver
The system is designed to restart the engine once the driver takes their foot off the brake pedal. There are multiple defects in Audi's implementation that make the cars dangerous to drive. Multiple Defects in Audi's Start-Stop Design ∞Īudi owners have more to worry about than the standard menu of start-stop concerns. And that's when most engine wear occurs, particularly on the starter and transmission.Īll this for what amounts to a marginal gain of 3% fuel efficiency. A start-stop system can increase the number of times your engine is started on an average day to dozens or maybe even hundreds of times, depending on your commute. Then there's the valid concerns about wear and tear. Some of the more aggressive systems will even shut the engine down before the car comes to a complete stop. If you've ever driven a car with a start-stop system you likely remember the first time you pull up to a red light and the engine shuts off. It's become very popular with automakers as they compete to squeeze every fraction of a mile out of a gallon of gas.īut while automakers might love, owners aren't so sure.įirst off, it's a little disconcerting. The technology shuts off your engine and transmission when you don't need it to improve fuel efficiency and reduce emissions output. The benefits of start-stop systems are clear.
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