Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2012A3 (8PA) L4-2.0L TURBO (CCTA)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULESERVICE AND REPAIRENGINE CONTROL MODULE, REPLACING
2012 Audi A3 (8PA) L4-2.0L Turbo (CCTA)
Engine Control Module, Replacing
2012 Audi A3 (8PA) L4-2.0L Turbo (CCTA)SECTION Engine Control Module, Replacing
Engine Control Module, Replacing
Removing
Special tools, testers and auxiliary items required
• Heat gun.
• locking pliers
• When the Engine Control Module (ECM) (J623) electrical harness connectors are disconnected, the adaptation values are erased and the DTC memory content remains intact.
Work procedure
Check the identification of the previous Engine Control Module (ECM) (J623) as follows:
- Connect the scan tool.
- Switch the ignition on.
- Using the scan tool, select "Vehicle information".
- Select " Calibration Identification" in vehicle information.
The electronic control module identification number will be displayed, e.g. 06A906032NA 4983
- Record the electronic control module identification number.
- End diagnosis and switch the ignition off.
Procedure
- Refer to the appropriate service information.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.