If its not a panic stop and you have time, just smoothly rear brake, start letting the throttle go, downshift to first gear one-by-one. Front brake if needed. Also the most proper way to downshift is rev-matching, there are videos about it on youtube so you can watch. The stop start functions in cars these days relies on a number of variables. Dependant on engine temp and such. The engines are higher compression for one. The starter motors are high torque and ring gears are wider in some cases. The engine also stops in a specific position to fire up immediately with almost no cranking. So the wear is minimal. A 6 year old starter that has been good for 6 years doesn’t just all of a sudden start cranking the engine slower. If you have held the starter for a prolonged period of time say 10 or so seconds, then stopped, and cranked it again without giving the starter time to cool, the insulation around the field windings can break down causing it to The sensors need a few seconds to warm up and work properly. So the ECU is basically blind on startup. After a few seconds the ECU gets the data and then enters a closed loop cycle where it constantly adjusts fuel input based on it's sensor data. With an OBD2 scanner you can see this is short term fuel trim and long term fuel trim. Start stop is related to how often you access your drive. If you do not open your drive or have any software installed on it that is running or if it is not your main drive then it will stop reading or writing. The moment you open file explorer and open your drive will spin up again for data to be read. If it is a hard drive you will actually Is this a sign that my battery is bad? No, not necessarily, start/stop is not always consistent. It does what it wants to when it wants to. Don't really care for start-stop, is there a way to permanently disable it? With a tune. I tried to disable the auto engine start button in the settings, but that had no effect. Mazda makes this relatively easy to do by first triggering Auto Hold with a light brake press and i-Stop with a slightly harder brake press. A very light accelerator press also reduces jerkiness starting up again as the brakes let up first and engine starts up at the same time. 2. weirdbutok5. When I start the engine manually 99% of the time it starts no problem. But 1% of the time the engine will start and run for one or two seconds and immediately stop as if I've stalled it, although the glow plug light flashed and the message says bring to workshop. After this it'll start up no problem when I start it. W1sAT.