How do I reset the computer on my BMW?

How do I reset the computer on my BMW?

How to Reset a BMW Computer

  1. Turn your ignition key to the accessory position when the lights and radio come on (before starting the car).
  2. Press and hold the “Trip” button on the instrument panel until the red light comes on.
  3. Press the “Trip” button a second time and hold until “Reset” appears.

How do I recode my BMW battery?


  1. Plug your BMW scan tool into the OBD2 port under the dashboard. …
  2. Turn ignition on, the key to position II. …
  3. Select BMW. …
  4. Scroll down to the Body menu 4.
  5. Scroll down to Power Supply (Battery) and press Enter.
  6. Select option 2 for Battery registration.

Will disconnecting my car battery reset the computer?

A. It depends on the car’s age and type of ECU used. On some older cars, disconnecting the battery will reset the system but in most new cars it does nothing, except potentially reset the clock and radio station presets.

How do I reset my BMW after changing the battery?

How To Reset BMW Computer After Battery Change?

  1. Step 1: Restart the controller.
  2. Step 2: Tap the “Trip” button to wake it up and glow.
  3. Step 3: Continue to press and hold that “trip” button and hold until the “Reset” button appears on the screen.
  4. Step 4: Reset.

Why do I need to Reset my BMW computer after battery change?

BMW’s primary reason for developing the new way of regulating the charging performance by reset of BMW computer after battery change is all about improving the engine performance of the vehicle. Unlike many people who think that the company is intended to make more sales, longer life batteries or protecting the car owner’s wallet.

What happens if you skip the BMW battery change?

But however, the vehicle owner must be warned of the danger of skipping the BMW computer battery change, because this can result in shortening the life of the battery in the vehicle. And, it can damage the entire components of the electrical system of the car.

Why is AGM battery sealed on BMW X5?

But the acid is instead bound into the fibre fleece glass. This is one of the reasons that no acid escapes in case the housing happens to damage. And moreover, the AGM battery is airtightly sealed to prevent water from entering into it.

What kind of battery does a BMW E90 have?

A 2006 BMW 330i E90 model will provides the following choices when programming a battery in: 90Ah, 90Ah AGM, 80Ah AGM, 80Ah, 70Ah, 70Ah AGM, 55Ah, 46Ah. And suppose our high spec model came with a 90Ah AGM battery and was programmed for it, but you wants to save money by fitting in a 55Ah lead/calcium battery.

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