When owners discuss "Engineering Mode" on a Peugeot 2008, they are usually referring to one of two distinct interfaces:

Go to the settings menu on your screen.

Before attempting a map update via the MyPeugeot app, you can use this mode to pull up the exact, unedited build number of your NAC/RCC firmware to ensure compatibility. Safety and Risks: A Word of Caution

Look at the row of toggle/piano keys directly beneath the touchscreen.

The entry method varies slightly depending on the model year and whether your vehicle uses the older SMEG system or the newer RCC/NAC TomTom system. Step-by-Step Entry Method

: Changing parameters in these menus can cause system instability or disable navigation and emergency call features.

To enter the hidden menu, you must trigger the password prompt using a specific button combination on your central touchscreen. Follow these exact steps:

These are used to troubleshoot issues. They can provide detailed error messages and real-time data on the vehicle's systems, helping diagnose problems without needing to connect external diagnostic equipment.