Audi A6 S6 RS6 A7 S7 RS7 4G MMI 3G+ GPS Navigation Multimedia Main Unit - Genuine OEM 4G0035670G

Replace a faulty or damaged factory infotainment computer with this Genuine OEM Audi MMI 3G+ Navigation Main Unit, part number 4G0035670G.

Also identified as the J794 information-electronics control module, this unit manages compatible factory navigation, audio, radio, media, telephone and vehicle-menu functions through the Audi MMI system.

Product Features

• Genuine OEM Audi infotainment component
• Audi part number 4G0035670G
• Alternative part-number format 4G0 035 670 G
• MMI 3G+ navigation and multimedia main unit
• J794 information-electronics control module
• Diagnostic control-module address 5F
• Integrated GPS navigation functionality
• Compatible radio, media and telephone management
• Designed for selected Audi 4G-platform vehicles
• Original factory connectors and mounting design

Common Symptoms of a Faulty MMI Unit

• MMI system does not start
• System repeatedly restarts or shuts down
• Navigation remains unavailable or stuck loading
• Display remains blank despite receiving power
• CD or DVD media is not recognised
• Radio, audio or multimedia functions operate intermittently
• Bluetooth or telephone functions are unavailable
• No communication with control module 5F
• Infotainment-related diagnostic fault codes are stored

Vehicle Compatibility

This unit may be suitable for selected Audi A6, S6, RS6, A7, S7 and RS7 vehicles built on the 4G platform and equipped with a compatible factory MMI 3G+ navigation system.

Compatibility depends on the vehicle production date, market region, MMI version, display, amplifier, telephone preparation, navigation specification, software version and factory equipment.

Please compare part number 4G0035670G, the hardware number, software information, electrical connectors and all additional label details with the original unit before purchasing.

Model names alone should not be used to confirm compatibility. Similar-looking MMI units may contain different regional software, telephone hardware, navigation configurations or enabled equipment.

Coding and Programming Requirements

Component-protection removal, coding and vehicle-specific commissioning are normally required when installing this MMI main unit into a different vehicle.

The replacement J794 control module may require adaptation transfer, new coding, parameterisation, component-protection removal and navigation recovery activation using Audi-compatible diagnostic equipment with authorised online access.

The unit must be configured to match the vehicle's MMI display, audio system, telephone equipment, navigation region, parking equipment and other installed factory options.

Navigation map compatibility and activation status should also be checked. A used unit from another vehicle should not be considered plug-and-play.

If the vehicle's original unit is professionally repaired and reinstalled into the same vehicle, additional component-protection removal is not normally required.

Installation Information

Professional installation by an Audi technician or experienced automotive infotainment specialist is strongly recommended.

The vehicle should be diagnostically scanned before replacement to confirm that the MMI main unit is responsible for the fault. The display, control panel, antennas, power supply, wiring and MOST fibre-optic network should also be inspected.

Where possible, the original unit should remain available during replacement so its coding and adaptation information can be transferred to the replacement module.

After installation and commissioning, the navigation, radio, audio, media, telephone, Bluetooth, display and vehicle-menu functions should be tested for correct operation.