BMW F01 F02 Active Seatbelt ACL Module - Used Original Parts

Diagnosis and Common Symptoms

As a senior technician, I frequently diagnose Active Seatbelt ACL Module failures in the F01 and F02 7 Series chassis, usually stemming from internal electrical faults or dropped communication on the PT-CAN bus network. The ACL module controls the motorized pre-tensioning system, which provides the initial "comfort fit" pull when you buckle up and handles emergency pre-crash belt tightening. When this module fails, drivers will immediately see an illuminated Airbag/SRS light on the instrument cluster accompanied by a "Restraint System Defective" or "Seatbelt tensioner faulty" warning on the iDrive screen. Furthermore, the physical seatbelt will lose its electronic retraction capabilities upon startup. When scanning the vehicle with ISTA, common fault codes include 930A40 (Active seat belt: internal fault), 930A45 (Active seat belt: communication fault), or similar ACSM-related belt drive errors.

Introduction

Restoring the complex safety systems in your 7 Series requires components that meet strict factory standards. This Genuine Used Active Seatbelt ACL Module has been rigorously tested in our facility to ensure flawless communication and tensioning logic. Unlike unreliable aftermarket alternatives that often fail to clear restraint system warnings, this authentic BMW part guarantees seamless integration with your vehicle's safety network. Installing a tested, original module ensures your pre-crash safety features operate precisely as the manufacturer intended.

Product Details

• Brand: Genuine BMW
• Model Compatibility: BMW 7 Series F01, F02 (2009-2015)
• Part Name: Active Seatbelt ACL Control Module
• Condition: Genuine Used (Tested Working)
• Notes: This module operates on a secure network and requires professional installation. Once installed, it must be coded and initialized using BMW ISTA software to synchronize with the vehicle's Advanced Crash Safety Module (ACSM) and clear stored fault codes.