BMW F01 F02 Antenna Diversity Amplifier Module - Used Original Parts

Diagnosis and Common Symptoms

From the workshop floor, the F01/F02 Antenna Diversity Amplifier is a frequent point of failure, almost always due to water ingress from the rear window seal. A faulty module disrupts critical radio frequency signals, leading to a cascade of frustrating electronic issues. Your primary diagnostic indicators will be a severe reduction in key fob range for locking/unlocking and intermittent or total failure of Comfort Access.

On the dash, you may see errors like "Remote control not detected" or "Key not present," even with the key inside the vehicle. Radio reception (AM/FM) will become poor, with excessive static or an inability to hold a signal. Diagnostically, we commonly see fault codes stored in the Car Access System (CAS) module, such as 801C20 (ZV aerial: line disconnection) or other communication faults related to the remote receiver.

Introduction

Restore your vehicle's remote functions and radio clarity with a professionally salvaged and fully tested Genuine BMW Antenna Diversity Amplifier. Each module is carefully removed from a donor vehicle and subjected to rigorous bench testing to ensure it meets factory signal processing specifications. This is the most reliable and cost-effective solution to rectify common key fob and reception issues without the expense of a new-from-dealer part.

Product Details

• Brand: BMW

• Model Compatibility: BMW 7 Series (F01 Sedan, F02 Long Wheelbase) / (2008-2015)

• Part Name: Antenna Diversity Amplifier / Aerial Amplifier Module

• Condition: Genuine Used (Tested Working)

• Notes: This module is located at the top of the rear windscreen. We strongly advise inspecting and replacing the rear window upper seal during installation to prevent repeat failure from water damage on the replacement unit.