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Fitting an Additional Chip Tuning Unit

Model: Audi A3 MK 2, 8P - Years 2003-2013
Part: Accessory kit

Before proceeding, obtain the tuning kit for the vehicle in question. Open the bonnet and access the installed control unit. Remove the original connector from the original control unit using a tool. Connect one end of the Y-cable, included in the kit, to the control unit and the other end to the connector just disconnected. After connecting the new additional control unit to the third connector of the kit's wiring, position the new control unit in a suitable location, away from intense heat sources, and secure it with plastic ties. Make the power connections directly to the battery.

Updated on 5 February 2026 by ScegliAuto

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