Audi A3 1.9 TDI original file Bosch EDC15 HW 0281010122 · 038906012C · SW 350850

This is the factory calibration of the 2001 Audi A3 1.9 TDI (66 kW, 90 hp), for its Bosch EDC15 ECU with hardware 0281010122, part number 038906012C and software 350850 (1037350850). Use it to put the car back to standard, to recover the ECU after a failed write, or as the base of a tune of your own.

An original holds every map as the factory wrote them: injection quantity and timing, boost and rail pressure, the torque and smoke limiters, the speed limiter and the emissions controls. Tuners start a file from it; workshops use it to put a car back to standard.

The Audi A3 1.9 TDI carries the 1.9 TDi engine, 90 hp and 210 Nm from the factory. On this engine, Stage 1 usually gives about 120 hp and 265 Nm (+30 hp, +55 Nm); Stage 2 usually gives about 130 hp and 285 Nm (+40 hp, +75 Nm). Typical figures for a healthy engine: your car's own result depends on its condition, fuel and parts.

For software 350850 of the Audi A3 1.9 TDI we sell the original, Stage 1, Stage 2 and Stage 3. Stage 1 and Stage 2 each come in two versions, tuned from different reads of this software. Every file downloads straight after payment.

The Bosch EDC15 ECU in this car is read and written over OBD and on the bench, with tools such as CMD Flash and Alientech Kess V2. Keep your own read: compare its hardware and software numbers with the ones on this page before you write the file.

EGR off, DTC off and speed limiter (Vmax) off can be built on this file on request, for off-road and competition use: send us your read through our file service and our engineers add them (any file £50, from £30 in packs).

Hardware 0281010122 is the number on the Bosch ECU's label. Software 350850 (1037350850) is the calibration inside it: a read with hardware 0281010122 and another software number needs a different file. Part number 038906012C is the car maker's number for this ECU.