Disabling ASD (Active Sound Design): Pros & Cons

Active Sound Design (ASD) broadcasts synthesized engine noise through the car's speakers. It's standard on most post-2013 petrol and post-2016 diesel F/G-series models. Why Disable? • Hear the real engine (especially on cars with downpipe/exhaust mods) • Reduce noise during highway cruising at low RPM • A fully 'untricked' sound experience How to Code It You need to modify ASD-related FA values in the HU_NBT or HU_MGU module. OBDThink ships with a ready-made template for this. Module: HU_NBT Parameter: ASD_ENABLE Current: aktiv Change to: nicht_aktiv On some cars ASD is controlled from the AMP module instead of HU. OBDThink auto-detects the correct module. Things to Be Aware Of When you disable ASD, expect this: low-RPM engine sound disappears entirely — some drivers find this 'dead'. The excitement feel in Sport mode drops. EVs don't have it, so it doesn't apply. Reverting OBDThink auto-backs up every change. Revert to factory with one tap.