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To reset the check engine light on a BMW, you generally have two primary methods. The first approach involves using an OBD-II scanner. Connect the scanner to the OBD-II port under the dashboard. Once connected, navigate through the scanner's menu to find the option to erase or reset the codes. This action should clear the check engine light. Alternatively, for a more manual approach without diagnostic tools, you can try disconnecting the car's battery. Disconnect the negative battery cable and leave it unplugged for about 15 minutes to ensure the vehicle's electronic systems fully reset. However, this method may also reset other vehicle settings, so use it cautiously. It's important to note that if the issue triggering the check engine light isn't resolved, the light might return. Thus, it's advisable to diagnose and fix underlying problems causing the light to activate, not just reset it. Always consult your vehicle's manual or a professional mechanic for specific advice related to your BMW model.
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