Description
2007-2009 Audi Q7 Bose MMI Audio Amplifier – OEM 4L0035223D
Genuine OEM Bose premium audio amplifier for select 2007-2009 Audi Q7 4L vehicles equipped with the factory Bose sound system and MMI 2G MOST fiber-optic audio system.
This is an original Audi/Bose component, not an aftermarket replacement. It is designed to communicate with the vehicle’s factory MMI audio system and power the original Bose speaker system.
Part Information
- Brand: Genuine Audi / Bose
- Audi Part Number: 4L0035223D
- Formatted Part Number: 4L0 035 223 D
- Part Type: Premium Audio Amplifier
- Audio System: Bose
- Infotainment System: MMI 2G
- Communication: MOST Fiber Optic
- Chassis: Audi Q7 4L
- Condition: Used Genuine OEM
Vehicle Fitment
Fits select:
- 2007 Audi Q7 with factory Bose audio
- 2008 Audi Q7 with factory Bose audio
- 2009 Audi Q7 with factory Bose audio
Applications may include Q7 vehicles equipped with 3.6L, 4.2L and other engines depending on factory audio equipment.
IMPORTANT: This amplifier is intended for vehicles equipped with the factory Bose sound system. It is not intended as a replacement for the standard non-Bose amplifier.
OEM Number
The primary hardware number for this listing is:
4L0035223D / 4L0 035 223 D
Other numbers may be encountered within the same Audi Q7 Bose amplifier family, including:
- 4L0035223A
- 4L0035223B
- 4L0035223C
- 4L0035223E
- 4L0910223D
- 4L0910223G
These numbers should not automatically be assumed to be interchangeable. Hardware revision, software version and vehicle equipment can differ. For the best compatibility, match the number on your original amplifier to 4L0035223D.
Common Symptoms of Bose Amplifier Problems
A faulty Audi Q7 Bose amplifier may be associated with symptoms including:
- No sound from the audio system
- Intermittent audio
- Some speakers not producing sound
- Distorted or weak audio
- MMI audio system malfunction
- MOST fiber-optic communication faults
These symptoms can also be caused by wiring, fiber-optic network faults, water intrusion or other MMI components. Proper diagnosis is recommended before replacing the amplifier.
Genuine OEM Bose Component
This is an original factory Audi/Bose amplifier manufactured for the Q7’s premium audio system. Purchasing the correct original OEM component maintains compatibility with the vehicle’s factory speakers, wiring and MMI system.
Condition
This is a used genuine OEM component and may show normal cosmetic wear consistent with age and previous use.
Please review all product photographs carefully. The photographs show the actual condition of the item being offered.
Electrical connections, fiber-optic connection, housing and mounting points should be compared with your original unit before installation.
Only the amplifier and components shown in the photographs are included.
Important Audi Component Protection / Coding Notice
This component may require programming, coding, adaptation and/or Audi Component Protection removal after installation.
Installation of a replacement amplifier does not guarantee immediate plug-and-play operation. Depending on the vehicle and replacement unit, a qualified Audi/VW specialist or properly equipped repair facility may be required to complete installation and vehicle-specific configuration.
Programming, coding and Component Protection services are not included with the purchase of this amplifier.
Water Damage Inspection
Audi Q7 audio electronics can be exposed to moisture or water intrusion. Before installing a replacement amplifier, inspect the amplifier mounting area, connectors and surrounding vehicle area for evidence of water intrusion and correct any leaks before installation.
Fitment Verification
The most reliable way to verify compatibility is to compare the complete Audi part number on your original amplifier with:
4L0035223D / 4L0 035 223 D
Please also confirm that your vehicle is equipped with the factory Bose sound system.
If your original amplifier has a different part number or revision, please contact us before ordering.
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