This is true if you buy parts and labor from a dealership. Not so much if you can do the work yourself or have access to an independent shop you trust.
A "whistle" implies (to me) a very small leak. If there's enough pressure in the intake to generate a whistle then there's plenty of air going through the throttle body to the cylinders.
I don't have lane centering on my car, only lane keeping. The button on the end of your turn signal turns lane keeping on and off. If I turn off lane keeping on my car the digital speed indication enlarges and moves to the center of the display.
I like your logic, but I think there is one flaw: Overcharging a battery results in fairly obvious damage, and sometimes smoke and fire. I'm not aware of widespread reports of battery overcharge incidents with these cars.
Given the amount of throttle you're using, my guess would be a leak somewhere in the intake tract. The turbocharger in your car pressurizes the air going into the cylinders, but before it gets to the cylinders it's routed through the intake system and throttle body. The fact that it gets louder...
I didn't say it's because of the floor mat in your car. Please go back and carefully reread my posts. Ford moved the position of gas pedals in its later-model vehicles BECAUSE of an issue with floor mats in earlier models. The floor mats got on top of the gas pedal resulting in uncommanded...
I'll submit then that you don't have enough data to say the system is no longer working. Look over the list of parameters I posted previously; my guess is one or more of them were not present this morning when you system wasn't operating. Do you see a capital A in a circle with a line through it...
That's the lane centering display. Lane centering (different feature from lane keeping) is part of the CoPilot 360+ package, and it usually isn't visible until you turn on cruise control. Try turning cruise control on and off and see what happens.
I don't think oil draining will be an issue. The system generally won't keep the engine off for more than a minute or so. And since the car must be at operating temp for the system to engage, the oil will already be hot. The short off duration means oil will not have time to run off internal...
You're in WI. Wait until it gets a bit warmer this spring. The following list details the conditions that must exist for Auto start/stop to function. There are several there related to temperature.
You do not press the Auto-Start-Stop button.
Your vehicle exceeds an initial speed of 3 mph (5...
Not durability data (I don't believe that exists), but good info on the difference between standard starters and those designed for start/stop systems.
https://www.greencarreports.com/news/1109687_dont-start-stop-systems-wear-out-your-cars-starter