How to Reset BMW Computer After Battery Change

BMW cars have a computer system that runs most of the diagnoses and displays of the vehicle. After maintenance tasks like an oil change or battery replacement, it becomes necessary to reset the BMW computer. If you don’t want to take professional service for that, you have to know how to reset BMW computer after battery change.

Why Does the BMW Computer Need a Reset?

These days, BMW cars come with a complicated electrical system consisting of a computer that controls the alternator. After replacing the battery, this computer should know about the change, so its software has information about the update. The main reason is that the computer stores electric energy, which is different from the primary battery.

how to reset BMW computer after battery change
A BMW computer. (Source: Heynneman European)

There are some certain advantages of performing a computer reset in BMW cars.

  • The computer reset is a way to inform the computer of successful new battery registration.
  • Resetting ensures that the battery of the BMW car registers 80% of the capacity as a reference point.
  • This process also confirms the restoration of the Current Odometer readings.
  • It also enables the computer to delete battery information storage allocation of values, such as battery temperature, voltage, current, and charge level.

Which BMW Models Need a Computer Reset?

In case of battery change in any of these models, computer reset becomes essential.

  • 7-Series cars from the year 2002 and later (E65/E66 chassis)
  • X5 cars of 2007 and later (E70 chassis)
  • 2003 and later 6-Series cars (E54/E63 chassis)
  • X5 cars of 2005 and later (E53 chassis and N62 engine)
  • X6 cars from the year 2008 and later (E71 chassis)
  • 3-Series cars of 2006 and later (E90/E91/E92/E93 chassis)
  • 5-Series cars of 2004 and later (E60/E61 chassis)


How to Reset BMW Computer After Battery Change

As you can understand the importance of the BMW computer reset from the earlier discussion, here are the steps.

  1. First of all, turn the ignition key of the BMW car to the accessory position once the lights and radio are on. You have to do this before starting the vehicle. Then, press and hold the “Trip” button, which is located on the instrument panel, until the red light comes on.
  2. Again, press the “Trip” button and hold until Reset appears.
  3. Then, press the same button for the third time. Now, the BMW computer will reset in no time.

The whole process of battery change and computer reset of BMW cars is not costly. Doing this on time will allow you to drive your BMW car without any problem. Despite all these facts, do not take this procedure lightly. There are motor shops with trained technicians who follow the warranty standards of the manufacturer. Consult such shops to get a safe and secure service.


You can save a lot of hassle if you know how to reset BMW computer after battery change. By following these steps, anyone can reset the computer of BMW cars without any hardship.