2013-2017 Audi A4 A5 S4 S5 Q5 Bang & Olufsen Audio Amplifier OEM 8T1035223A

Product Description

This part number (8T1035223A) identifies the Bang & Olufsen (B&O) Sound System Amplifier used in a wide range of Audi models from 2012 to 2017.

As a high-end audio component, this unit is notorious for water damage in certain models (like the Q5) due to sunroof drain leaks. Used units are in high demand as a "plug-and-play" replacement for failed amps.

Title

2013-2017 Audi A4 A5 S4 S5 Q5 Bang & Olufsen Audio Amplifier OEM 8T1035223A

Description

Product Overview

Up for sale is a genuine OEM Audi Bang & Olufsen (B&O) Amplifier. This is the high-output "booster" unit responsible for the premium 14-speaker surround sound experience.

Manufacturer: Lear Corporation (for Audi)
Part Number: 8T1035223A (8T1 035 223 A)
System Type: Bang & Olufsen (Option Code 9VK or 8RF)
Audio Tech: MMI 3G+ compatible

Condition Report

Tested: Pulled from a vehicle with a fully functional audio system. No "static," "channel clipping," or total sound loss issues.
Internal Health: Inspected for corrosion. This unit shows no signs of the common water damage/oxidization on the pins or internal board.
Casing: Aluminum heat-sink is clean; all plastic mounting tabs are intact.

Vehicle Compatibility

Fits many B8 and B8.5 chassis vehicles with the Bang & Olufsen package:

Audi A4 / S4: 2013, 2014, 2015, 2016
Audi A5 / S5 / RS5: 2012, 2013, 2014, 2015, 2016, 2017
Audi Q5 / SQ5: 2012, 2013, 2014, 2015, 2016, 2017
Audi Allroad: 2013, 2014, 2015, 2016
Note: This part is for vehicles with the Bang & Olufsen system. It will not work in vehicles with the standard Audi Concert or Bose systems.

⚠️ CRITICAL: Component Protection

Audi vehicles use a security system called Component Protection.

The Catch: After you plug this unit in, you will likely only hear sound from one side of the car, or the sound may be muted entirely.
The Fix: You must take the car to a dealership or an independent shop with ODIS/GeKo access to "unlock" the amplifier to your vehicle's VIN. This is a standard anti-theft measure for Audi electronics.