AUDI · MED17.5.5 ECU · petrol

AUDI A3 MED17.5.5 tuning files

Tuning file coverage for the AUDI A3 running the MED17.5.5 ECU. The matched variants sit between 122 and 125 HP from the factory. Petrol calibration here is about crisp response and a result that holds up day to day. We match the right calibration to your exact software and validate it before delivery.

Upload your file →All A3 coverage

Available solutions

Applicable work for the MED17.5.5 on this petrol. The available set firms up once the exact engine and software are known.

Stage 1 Stage 2 Swirl Flaps OffLambda / O2OPF/GPF Off

Engine variants & ECU software

35 distinct variants for the AUDI A3 on the MED17.5.5 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 1400 16v TFSI 125HP
Engine code: CAXA
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 7356
ECU HW: 03C906016AA
SW upgrade: 03C906016AA_7356
Calibration: 03C906016AA_7356

Variant 2

ECU

Catalog engine: 1400 16v TFSI 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 1037502868
ECU HW: 0261S04652
Calibration: 03C906016F_5048

Variant 3

ECU

Catalog engine: 1400 16v TFSI 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 1037516947
ECU HW: 0261S04652
SW upgrade: 03C906016F_9063
Calibration: 03C906016F_9063

Variant 4

ECU

Catalog engine: 1400 16v TFSI 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 1037399977
ECU HW: 0261S04652
SW upgrade: 03C906016F_3598
Calibration: 03C906016F_3598

Variant 5

ECU

Catalog engine: 1400 16v TFSI 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 5889
ECU HW: 03C906016S
SW upgrade: 03C906016S_5889
Calibration: 03C906016S_5889

Variant 6

ECU

Catalog engine: 1400 16v TFSI 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 4985
ECU HW: 03C906016S
SW upgrade: 03C906016S_4985
Calibration: 03C906016S_4985

Variant 7

ECU

Catalog engine: 1400 16v TFSI 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 7355
ECU HW: 03C906016S
SW upgrade: 03C906016S_7355
Calibration: 03C906016S_7355

Variant 8

ECU

Catalog engine: 1400 16v TFSI 125HP
Engine code: CMSA
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 7938
ECU HW: 03C906016BL
SW upgrade: 03C906016BL_7938
Calibration: 03C906016BL_7938

Variant 9

ECU

Catalog engine: 1400 16v TFSI 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 5888
ECU HW: 03C906016T
SW upgrade: 03C906016T_5888
Calibration: 03C906016T_5888

Variant 10

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 8545
ECU HW: 03C906016AN
SW upgrade: 03C906016AN_8545
Calibration: 03C906016AN_8545

Variant 11

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 4669
ECU HW: 03C997016J
SW upgrade: 03C997016J_4669
Calibration: 03C997016J_4669

Variant 12

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
SW upgrade: 03C997016E_2119
Calibration: 03C997016E_2119

Variant 13

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
SW upgrade: 03C906016CP_3980
Calibration: 03C906016CP_3980

Variant 14

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 2120
ECU HW: 03C997016F
SW upgrade: 03C997016F_2120
Calibration: 03C997016F_2120

Variant 15

ECU

Catalog engine: 1400 125HP
Engine code: CMSA
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 9970
ECU HW: 03C906016BL
SW upgrade: 03C906016BL_9970
Calibration: 03C906016BL_9970

Variant 16

ECU

Catalog engine: 1400 125HP
Engine code: CAXA
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 9090
ECU HW: 03C906016AA
SW upgrade: 03C906016AA_9090
Calibration: 03C906016AA_9090

Variant 17

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 4668
ECU HW: 03C997016H
SW upgrade: 03C997016H_4668
Calibration: 03C997016H_4668

Variant 18

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 9897
ECU HW: 03C906016T
SW upgrade: 03C906016T_9897
Calibration: 03C906016T_9897

Variant 19

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 2125
ECU HW: 03C997016J
SW upgrade: 03C997016J_2125
Calibration: 03C997016J_2125

Variant 20

ECU

Catalog engine: 1400 125HP
Engine code: CAXA
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 9092
ECU HW: 03C906016AG
SW upgrade: 03C906016AG_9092
Calibration: 03C906016AG_9092

Variant 21

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 9094
ECU HW: 03C906016T
SW upgrade: 03C906016T_9094
Calibration: 03C906016T_9094

Variant 22

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 2124
ECU HW: 03C997016H
SW upgrade: 03C997016H_2124
Calibration: 03C997016H_2124

Variant 23

ECU

Catalog engine: 1400 125HP
Engine code: CAXA
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 9089
ECU HW: 03C906016AC
SW upgrade: 03C906016AC_9089
Calibration: 03C906016AC_9089

Variant 24

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 2810
ECU HW: 03C997016Q
SW upgrade: 03C997016Q_2810
Calibration: 03C997016Q_2810

Variant 25

ECU

Catalog engine: 1400 125HP
Engine code: CAXA
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 9091
ECU HW: 03C906016AF
SW upgrade: 03C906016AF_9091
Calibration: 03C906016AF_9091

Variant 26

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 8544
ECU HW: 03C906016T
SW upgrade: 03C906016T_8544
Calibration: 03C906016T_8544

Variant 27

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 1037505629
ECU HW: 0261S04653
Calibration: 03C906016G_6351

Variant 28

ECU

Catalog engine: 1400 125HP
Engine code: CAXA
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
SW upgrade: 03C906016E_8178
Calibration: 03C906016E_8178

Variant 29

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 9093
ECU HW: 03C906016S
SW upgrade: 03C906016S_9093
Calibration: 03C906016S_9093

Variant 30

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 9895
ECU HW: 03C906016S
SW upgrade: 03C906016S_9895
Calibration: 03C906016S_9895

Variant 31

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 8542
ECU HW: 03C906016S
SW upgrade: 03C906016S_8542
Calibration: 03C906016S_8542

Variant 32

ECU

Catalog engine: 1400 125HP
Engine code: CAXC
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
SW upgrade: 03C906016S_3600
Calibration: 03C906016S_3600

Variant 33

ECU

Catalog engine: 1400 125HP
Engine code: CMSA
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 125 HP
ECU SW: 9085
ECU HW: 03C906016BL
SW upgrade: 03C906016BL_9085
Calibration: 03C906016BL_9085

Variant 34

ECU

Catalog engine: 1400 122HP
Engine code: CAXC
Generation: 8P Mk2 2008-2012
Matched gains engine: 1.4 TSI 122
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 122 HP
Stage 1 power: 145 HP
Power increase: +23 HP (+19%)
Stock torque: 200 Nm
Stage 1 torque: 250 Nm
Torque increase: +50 Nm (+25%)
ECU SW: 7354
ECU HW: 03C906016T
SW upgrade: 03C906016T_7354
Calibration: 03C906016T_7354

Variant 35

ECU

Catalog engine: 1400 122HP
Engine code: CAXA
Generation: 8P Mk2 2008-2012
Matched gains engine: 1.4 TSI 122
Controller brand: BOSCH
ECU: MED17.5.5
Stock power: 122 HP
Stage 1 power: 145 HP
Power increase: +23 HP (+19%)
Stock torque: 200 Nm
Stage 1 torque: 250 Nm
Torque increase: +50 Nm (+25%)
ECU SW: 7227
ECU HW: 03C906016AG
SW upgrade: 03C906016AG_7227
Calibration: 03C906016AG_7227

Related vehicles

Other vehicles built on the MED17.5.5 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the AUDI A3 on the MED17.5.5?

Stage 1, Stage 2, Swirl Flaps Off, Lambda / O2, OPF/GPF Off. The exact set depends on the specific engine and software version.

Do you cover the MED17.5.5 ECU software on this model?

Yes — the AUDI A3 on the MED17.5.5 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.

How is the file delivered?

Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.