Set your car to "Auto" mode (not dynamic, comfort, etc.). Make sure car is on level ground. Close doors. If any doors are opened during the procedure, it will be interrupted. Make sure your car is NOT in a towing or tire changing mode.
Load up VCDS, go to Module 34 - Level Control
Go to "10 - Adaptation", take note of 4 values titled as "Body height front left wheel house edge" - mine were set to around 384 from factory.
Take the values you noted above, and ADD your desired drop in millimeters (mm) to each value, write it down... So if your left front wheel was 384.5, your new value will be 401.5. Repeat for the other wheels. It is not critical to be 100% precise here, rounding the values is fine. Note that maximum Audi-approved drop is 17mm from what I've gathered. You can go lower, but if you go lower, you're also affecting other systems, such as cameras, adaptive cruise, etc., so be careful.
Technically, if you want this procedure to be done properly, instead of taking existing values, you will measure all 4 wheels after completion of the step 7, and then add your drop value if desired. Suspension height values are measured from the center of the wheel to the edge of the fender.
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