What are the hidden features of the 2009 Audi A6L?

2 Answers
JacksonFitz
07/24/25 4:29am
Here are several hidden features of the Audi A6L: 1. Low-speed radar display: Automatically activates radar imaging and alerts when encountering obstacles at low speeds. 2. Daytime running lights option: Displays the daytime running lights option in MMI. 3. Lock confirmation beep: Shows the lock confirmation sound option in MMI. Navigate to 46 Central Comfort System, check bit6 of byte4 and save (requires MMI restart). Default is one beep, can be changed to two. 4. Auto-lock option: Displays the auto-lock setting in MMI, access via 46 Central Comfort System.
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GabriellaMarie
08/11/25 12:03am
I've been driving a 2009 Audi A6L for several years and accidentally discovered several hidden features that are quite practical. Entering the engineering mode is easy: just hold down the CAR and SETUP buttons on the center console for about 5 seconds, and it will display vehicle diagnostic data, such as battery voltage and coolant temperature. This has helped me avoid battery drain issues. You can also customize settings, like turning the daytime running lights on/off or adjusting their brightness, which saves power and looks stylish. According to forum discussions, you can activate the mirror dipping function when reversing—manually adjust the mirror position while reversing, and the system will remember it for automatic operation. These features make the car smarter, and I often use them to check the vehicle's condition. However, avoid tampering with core settings to prevent malfunctions. Overall, exploring these hidden options has added convenience to my driving experience.
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