BMW F55 F56 Active Sound Amplifier 65129363496 - Used Original Parts

Diagnosis and Common Symptoms

From a technical standpoint, the Active Sound Design (ASD) module is an integral part of the vehicle's acoustic experience, particularly in SPORT mode. Failure is typically electronic. When this module fails, you will notice a distinct lack of engine sound enhancement inside the cabin, making the drive feel unusually quiet. Diagnostic scans using ISTA-D will often reveal specific fault codes pointing directly to the ASD module, such as B7F8C7 - ASD: Communication Fault or B7F8D1 - ASD: Internal ECU Fault. In some cases, a failing amplifier can introduce distortion or static into the audio system, as it's wired in-line with the speakers.

Introduction

Restore the signature acoustic profile of your MINI with this Genuine Used Active Sound Amplifier. Sourced directly from a donor vehicle, each module is rigorously bench-tested by our technicians to ensure it meets factory operational standards. This part provides a reliable, cost-effective solution to restore the dynamic driving soundtrack engineered by BMW, without the expense of a brand-new component.

Product Details

• Brand: BMW / MINI
• Model Compatibility: F55 (5-Door Hatch), F56 (3-Door Hatch)
• Part Name: Active Sound Design (ASD) Amplifier Module
• Condition: Genuine Used (Tested Working)
• Notes: This module receives real-time engine data (RPM, load, speed) via the CAN bus to generate a synthesized engine note through the vehicle's speakers. A faulty unit will not respond to drive mode changes and can cause communication errors on the network.