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How to Open the Hood of an Audi A4 Without a Key

Model: Audi A4 B9 - Years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
Part: Key

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Video tutorial

This feature is increasingly common in mid to high-end vehicles, such as the Audi A4. The video shows in detail what to do if you don't want to use the key, or if your hands are occupied, to open the trunk simply by passing your foot under the infrared sensor located at the rear of the vehicle.

This works because the key you possess, for example in your pants pocket, emits a code that is detected and recognized by the infrared sensor, which in turn communicates the opening command to the control unit, as illustrated.


Updated on 27 June 2026 by ScegliAuto


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How to Remove the Toll Tag Holder from the Car Windscreen

The toll tag holder is usually attached to the car windscreen to ensure that the toll tag functions immediately when passing through barriers. However, if you decide to remove the holder, you should follow this procedure: - Insert the toll tag into the holder; - Pull the holder inwards to detach it from the windscreen; you can use a glass scraper or a stiff plastic card to assist you; After removing the holder, it is essential to remove the adhesive from the windscreen. To remove the adhesive, we recommend using a solvent-based spray that will remove the glue without clouding the area.

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by ScegliAuto

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