2019-2022 BMW 8-Series 840i Oil Service Light Reset Guide (G14/G15)

Time needed: 3 minutes

Now I’ll walk you through how to reset the service light on this new BMW 840i. We’ll use the BC button on the end of the left stalk to do it. So let’s go ahead.

1. Turn the ignition switch to the Diagnostic Mode

   First all you need to do is press the START button 3 times in succession and just wait give it a second until the Diagnostic Mode message comes up on the dash

2. Long press the BC button

   Over here there’s a BC button in the left hand stalk. You can’t see it right now but you need to push on it and you hold down so this will bring you to service menu that it says reset possible
   
3. Find the ENGINE OIL

   Now we’re gonna cycle through the menu by short press the BC button and make sure you stop on the ENGINE OIL
   

4. Hold down the BC button

   Then what we’re gonna do is hold it down up one more time and it should says Perform Reset?

5. Release and hold it again

   To reset it you hold it down one more time and you’ll see reset in progress and there you go the car is resetting and it’ll says Reset Successful once it done