The auto start/stop function is a simple tech feature that has a huge impact on fuel economy. When you come to a complete stop, BMW automatic start/stop kicks into gear and shuts off the engine as your brake pedal depresses. The second you lift your foot off the brake or turn the steering wheel, BMW automatic start/stop puts the engine back Turn off Auto Start Stop (ASS) Function. Bought a 2018 X3 M40i (15K mile vehicle) about 30 days ago. The dealer informed they could NOT turn off the auto start/stop function (ASS) like they did on my wife's 2013 X3. Thanks to Bimmerfest somebody post a firm in Canada could do it and it could be done remotely (I'm in southern CA) for $!20 US. First, we're presuming that you actually do have stop-start (BMW first installed this system in 2008 IIRC). The previous owner may have 'coded it off' which means that S/S should obey its last setting if you accidently hit the S/S 'off' button. Try hitting the S/S button again and see what happens. In an auto, basically if you come to a stop with your foot on the brake, the car shuts off. Not 100% of the time, and its "aggressiveness" depends on several conditions, but that's the gist of it. Then when you release the brake to go to accelerate, the starter engages and starts it back up quickly. On our currently owned 2019 M550i turning that feature off every time we start the car is no trouble for us. However, now we read that BMW will not be providing the 2024 X3 vehicles with a pushbutton for disabling the engine start-stop function in the "economy" or "comfort" modes. I am not sure if that applies to the 2024 X3M Competition as well ? Hey so the new bmws with the b58 engine has a mild 48V battery in addition to the 12v battery. The start/stop function is controlled via the mild hybrid battery as are the other electronics. This mild hybrid has a more efficient start stop system than ones before which used the alternator to crank a start. mfvuDe. See how the car runs on the highway, anything below 78-79C generally means tstat needs replacing. Since the problem goes away with restart, it sounds electrical. That always leads me to check the MAF's (and when you unlock the OBC, you can do the dynamic MAF test, #4, option #2) and the 4 CPS. Regards, Jerry. We just had two BMW,s delivered today. One is a 330xi sedan with a build week of 44 and the other is a 440xi coupe with a build week of 46. BOTH VEHICLES HAVE THE START STOP BUTTON just like our previous 2014 models. The start/stop is only active if you want it to be. The info this new poster has is obviously completely incorrect. An engine restart will often reset the limp mode and allow the vehicle to operate normally. How to get a car out of limp mode: Park your vehicle in a safe location. Move the shifter to the “PARK” position. Turn off the ignition or press STOP if the vehicle has a Start/Stop button. Wait at least 60 seconds. Next, turn on the engine. Start Auto Start Stop function. Red lights, traffic jams, road works - in everyday driving situations there are countless instances where the engine is idling, unnecessarily burning fuel. The Auto Start Stop function, a BMW EfficientDynamics technology, makes this a thing of the past. The Auto Start Stop function switches off the engine when the If its dead- you won't need the bucket. -Pull the back seat (lower cushion) out and listen for the pump- its easier to hear with the seat out and the insulation removed. -With the seat out you can check if there is power to the pump at the harness while cranking. Wow the dealer took you for a ride, the oil level sensor will not stop your car from running. most likely is was the faults from when your replaced the cam sensors (which will stop your car from running) and yes your autozone scan tool will delete the oil level sensors out of the dme. generic scans tool just scan dme (and maybe the egs no sure

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