Audi Q7 BOSE Amplifier 4L0 035 223A - Used Original Parts
RM 1,200
Condition: Used (Original)Description
Product Title
Audi Q7 BOSE Amplifier 4L0 035 223A - Used Original Parts
Diagnosis and Common Symptoms
From a workshop perspective, failure of the J525 BOSE amplifier in the Audi Q7 (4L) is a frequent and definitive issue. The primary cause is often water ingress in the rear luggage compartment, leading to corrosion and short-circuiting of the internal board. Diagnosis via a proper scan tool (VCDS/ODIS) will typically reveal an optical bus break in the MOST ring, and the amplifier control module will be unreachable.
Common symptoms of a failed 4L0 035 223 A amplifier include:
- Complete loss of all audio output (radio, navigation, telephone).
- Loud popping or crackling noises from the speakers, especially on startup.
- The MMI (Multi Media Interface) system becoming slow, freezing, or randomly rebooting, as the failed amplifier breaks the MOST fiber optic loop.
- Diagnostic fault codes such as
00463 - Digital Sound System Control Module (J525): No Signal/Communication.
Introduction
Restore the full acoustic performance of your Audi Q7's sound system with this Genuine BOSE amplifier. Each unit is professionally salvaged from a donor vehicle and subjected to rigorous bench testing to confirm full functionality of all channels and MOST bus communication. This is a direct-fit, tested component guaranteed to resolve the common symptoms associated with amplifier failure, providing a reliable and cost-effective repair.
Product Details
- Brand: Audi (BOSE System)
- Model Compatibility: Audi Q7 (4L) | 2005 - 2015
- Part Name: BOSE Amplifier / Digital Sound System Control Module (J525)
- Condition: Genuine Used (Tested Working)
- Notes: This unit will have "Component Protection" active upon installation. This is a standard Audi security feature that must be deactivated online by an Audi dealership or a qualified independent specialist with the correct diagnostic tools. We strongly advise confirming the source of any water leaks before installing this replacement part.
Shipping
Location: Kuala Lumpur, Malaysia Shipping: West Malaysia RM50 (Estimate) / East Malaysia RM80 (Estimate) Delivery: 1-2 working days Packaging: Secure anti-static packaging, heavy-duty shock absorption. (We send actual photos/videos of the unit and packaging before shipping)
Warranty and Return Policy
- 30-day exchange warranty from the date of receipt.
- Proof of professional installation by a qualified workshop is required for warranty claims.
- No returns if the item is opened, modified, tampered with, or damaged due to incorrect electrical wiring.
- Exchange only for confirmed internal electronic defects.
How to Order
- WhatsApp us to confirm compatibility with your specific VIN.
- Send your chassis number or a clear photo of your old unit label.
- Confirm order details and stock availability.
- Receive actual product photos and diagnostic test confirmation.
- Make payment via bank transfer.
- Item is shipped immediately with tracking details provided.
Contact Us
William – https://wa.me/60102992988 Lok – https://wa.me/60177720143
Price Notice
Price is estimated only. Actual price depends on current stock levels, specific part number revisions, and unit condition. Please WhatsApp us for a formal quote.
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