Audi A8 D4 4.2 TDI Diesel ECU Engine Control Unit - Genuine OEM 4H0907409

Replace a faulty or damaged diesel engine computer with this Genuine OEM Audi Engine Control Unit, part number 4H0907409.

This Bosch EDC17CP24 control unit is designed for selected Audi A8 D4 vehicles equipped with a compatible 4.2 TDI diesel engine-management system.

The ECU controls essential engine functions, including fuel injection, turbocharger operation, emissions management, sensor information and communication with other vehicle control modules.

Product Features

• Genuine OEM Audi and Bosch engine-management component
• Audi part number 4H0907409
• Alternative part number format 4H0 907 409
• Bosch part number 0281015766
• Alternative Bosch number format 0 281 015 766
• Bosch EDC17CP24 diesel engine control unit
• Suitable for selected Audi A8 D4 4.2 TDI models
• Original factory housing and electrical connections
• Replacement for a compatible faulty or damaged ECU

Common Symptoms of a Faulty ECU

• Engine does not start or starts intermittently
• Engine warning light remains illuminated
• Loss of power or reduced-performance mode
• Fuel-injection or turbocharger-control faults
• No communication with the engine control unit
• Multiple engine-management fault codes
• Internal electronic, moisture or corrosion damage

Vehicle Compatibility

This ECU may be suitable for selected Audi A8 D4 vehicles equipped with a compatible 4.2 TDI diesel engine.

Compatibility depends on the vehicle production date, engine code, emissions specification, complete part-number suffix, Bosch number, hardware number and software version.

Please compare every number on the replacement ECU with the original module before purchasing. Different suffix versions of 4H0907409 may not be interchangeable, even when the housing and electrical connectors appear identical.

Coding and Programming Requirements

Coding, programming or professional ECU cloning is normally required when installing this engine control module into another vehicle.

A standard replacement ECU may require immobiliser adaptation, VIN and security-data matching, vehicle-specific software programming and diagnostic fault-code clearing before the engine will start and operate correctly.

If the original ECU data is professionally cloned onto a compatible replacement unit, separate immobiliser adaptation may not be required. An unmatched new, remanufactured or used ECU should not be considered plug-and-play.

Installation Information

Professional installation by an Audi technician or qualified automotive electronics specialist is strongly recommended.

The vehicle should be diagnostically tested before replacing the ECU to confirm that the control unit is responsible for the fault. Power supplies, earth connections, wiring, sensors and communication networks should also be inspected.

After installation, the ECU should be correctly programmed and the vehicle should be scanned and tested to verify communication with the immobiliser, transmission, emissions and engine-management systems.