Audi MIB2 Firmware Update | MHI2_US_AUG22_K3345 | MU1439 Official Software

Essential Performance & Stability Upgrade for North American Audi A4, A5 & Q5

Upgrade your Audi’s infotainment system to the official MHI2_US_AUG22_K3345 firmware (MU Version: 1439). This update is specifically designed for the AUG22 branch of the MIB2 (MHI2) platform found in North American models. If your system is experiencing lag, smartphone connection issues, or occasional freezes, this official firmware release provides the necessary fixes to restore a premium MMI experience.

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🔍 How to check your firmware version?

Before purchasing, it is crucial to verify that this update is compatible with your car’s hardware and region.

1. Use the MMI control wheel to navigate to Settings.
2. Select System Maintenance.
3. Tap on Version Information.
4. How to verify? Look at the first line of text. If your current version starts with MHI2_US_AUG22_, this is the correct update for your car.

🔗 [Full Compatibility Guide]: click here.

Changelog: What’s New in K3345 (MU1439)?

The K3345 firmware update addresses several software limitations and technical bugs:

• Smartphone Interface Refinement: Improves the stability of Apple CarPlay and Android Auto, reducing random disconnections and “black screen” errors. Please note, this update will not enable Apple CarPlay / Android Auto, if you want to enable this service, you will need this script (click here).
• Bluetooth Connectivity: Faster pairing and more reliable synchronization of contacts and media metadata for the latest US mobile devices.
• System Fluidity: Optimized menu scrolling and faster response times when using the MMI touch controller and steering wheel buttons.
• Navigation Enhancements: Fixes occasional GPS positioning errors and improves the initialization speed of 3D maps.
• Audio Stability: Resolves rare sound distortion or muting issues in the Bang & Olufsen 3D sound system.
• Backup Camera Fixes: Faster activation of the rearview or 360-degree camera feed when shifting into reverse.

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Vehicle Compatibility (MIB2 US AUG22 Branch)

This firmware is designed specifically for North American (US/Canada/Mexico) Audi models within the AUG22 software family.

Supported Models:

• Audi A4 / S4 / RS4 (B9) (2017 – 2019)
• Audi A5 / S5 / RS5 (F5) (2018 – 2019)
• Audi Q5 / SQ5 (FY) (2018 – 2020)

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Choose Your Delivery Method

🚀 Option 1: Instant Digital Download

• Immediate Access: Receive your secure download link via email immediately after checkout.
• Verified Data: All files are CRC-checked to ensure 100% security and integrity for your Audi’s electronics.
• Fastest Solution: Ideal for users with their own SD card (Class 10, 16GB+ recommended).

📦 Option 2: Pre-Loaded SD Card (Worldwide Shipping)

• Plug & Play: We ship a professional-grade, high-speed SD card pre-loaded with the official K3345 US firmware.
• Zero Technical Risk: No need to worry about slow downloads or formatting errors—simply insert and follow our guide.
• Tracked Delivery: Secure international shipping with tracking provided to the US and Canada.

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🛠 Installation & Technical Support

We provide the resources you need for a successful and safe update:

• Online Installation Manual: Access our detailed, step-by-step online guide on how to perform the update via the Red Engineering Menu (REM).
• Official Software: We provide only genuine, untouched Audi software for 100% vehicle safety.
• Expert Assistance: Our technical team is available via email to support you during the installation.

🔗 [Official Online Installation Guide & Video]: click here.

Why Choose MMI Updates?

• US Market Specialists: We ensure you get the correct North American firmware to avoid region lock errors.
• Verified Safety: All firmware is tested on real hardware to ensure a flawless update process.
• Expert Support: We understand the B9/FY platform and the specific needs of MIB2 users.