Do it yourself
Frequently asked questions about cars and motorcycles

How to Reset the Onboard Computer Module

Model: BMW Serie 3 E46 - Years 1998-2006
Part: Warning light – error code

It may happen that the activation of certain warning lights, such as the control lights or ABS traction light, prompts you to reset the module of your car. You can perform this operation with a few key steps, without needing to call a mechanic. Gather your wrenches, gloves, and pliers. The vehicle must be turned off and disconnected for at least twelve hours, as if it were completely drained and unable to discharge current to us in any way. Open the hood of your car and secure it with the prop rod. Then, open the cover that protects the battery compartment to locate the positive battery connector. Carefully disconnect the positive connector by unscrewing the nut that holds it in place with a wrench. After some time, reconnect the positive connector to the corresponding terminal of the car battery. A quarter of an hour later, the dashboard warning light should be off.

Updated on 21 February 2026 by ScegliAuto

Video tutorial

Related tutorials

BMW Serie 3 (1998-2006 / E46) Today's vehicles have computers that assist with maintenance by reminding the driver of service operations when the preset mileage is reached. Among …
BMW Serie 3 (2012-2019 / F30, F31) In this tutorial we can see how to reset the on-board computer of the BMW 3 Series, a very simple and fast operation, useful in case the iDrive syste…
BMW Serie 3 (2005-2013 / E91, E90, E92) In order to reset the on-board computer of the BMW 3 Series, you have to turn the key to turn on the instrument panel, so that you can use the radio …

Other guides you may be interested in

    Frequently Asked Questions

    • Serie 3 2012-2019 - What does the red brake light on the BMW 3 Series mean? Read answer
    • Serie 3 2012-2019 - What does the BMW 3 Series F30 blue battery light mean? Read answer
    • Serie 3 2005-2013 - What does the yellow engine fault warning light on the BMW E90 mean? Read answer
    • Serie 3 2012-2019 - Where is the paint code of the BMW 3 series 320d located? Read answer

How to Remove the Original Radio from a Renault Trafic

How to remove the original radio from a Renault Trafic? Follow this video closely to perform the removal: use the original or aftermarket metal keys to detach the stereo, insert the keys into the holes on the plastic cover of the stereo, pull the stereo towards you as shown in the video, and extract the radio while being careful of the various wiring (disconnect the power connectors and the antenna cable). Finally, reinstall the original radio or a generic brand with the appropriate adapter for the input and connector.

Watch the video!


by ScegliAuto

More videos