1. Getting Started - Prepare for the repair
2. Remove Cover - Locate interior fuse box and remove cover
3. Locate Bad Fuse - Find the fuse that is tied to the bad component
4. Remove Fuse - Take out the fuse in question and assess if blown
5. Test Component - Secure the cover and test component
6. More Info. - Additional information on interior fuses
The video above shows how to check for blown fuses in the interior fuse box of your 2009 BMW 135i and where the fuse panel diagram is located. If your map light, stereo, heated seats, headlights, power windows or other electronic components suddenly stop working, chances are you have a fuse that has blown out. If your 135i is experiencing electrical problems, you should always check the fuses first, because they are relatively easy to check and cheap to change. Some BMWs have multiple interior fuse boxes even the trunk - the video above will show you where the interior fuse box of your 2009 135i is located. The more electronics your 135i has, the more fuses it has. Some components may have multiple fuses, so make sure you check all of the fuses that are linked to the component in question.
If you need to replace a blown fuse in your 135i, make sure you replace it with one that has the same amperage as the blown fuse. If checking and replacing the fuse for the component in question doesn't work, we recommend seeking assistance from a trusted professional mechanic. They should be able to figure out if the component needs to be replaced or if there is a short or some other problem with your 135i.
Hans Angermeier has produced over 100,000 videos showing drivers how to fix things on their cars. He has broad expertise on basic repair procedures covering the majority of cars on the road.
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