VOLKSWAGEN · MED17.1.21 ECU · petrol

VOLKSWAGEN JETTA MED17.1.21 tuning files

The VOLKSWAGEN JETTA on the MED17.1.21, mapped from stock file to finished result. Stock output across the matched variants spans 122–204 HP. It is a petrol platform, tuned for response and clean power delivery. Every file is matched to the exact calibration on your vehicle and signed off by an operator.

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Available solutions

Solutions that apply to the MED17.1.21 on this petrol platform. The exact set depends on the specific engine and software version.

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

Engine variants & ECU software

9 distinct variants for the VOLKSWAGEN JETTA on the MED17.1.21 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 1400 204HP
Engine code: CRJA
Controller brand: BOSCH
ECU: MED17.1.21
Stock power: 204 HP
ECU SW: 8492
ECU HW: 04E906023L
SW upgrade: 04E906023L_8492
Calibration: 04E906023L

Variant 2

ECU

Catalog engine: 1400 150HP
Engine code: CRJA
Controller brand: BOSCH
ECU: MED17.1.21
Stock power: 150 HP
SW upgrade: 04E906023A_8491

Variant 3

ECU

Catalog engine: 1400 150HP
Engine code: CRJA
Controller brand: BOSCH
ECU: MED17.1.21
Stock power: 150 HP
ECU SW: 8491
ECU HW: 04E906023A
SW upgrade: 04E906023A_8491
Calibration: 04E906023A_8491

Variant 4

ECU

Catalog engine: 1400 122HP
Engine code: CZTA
Controller brand: BOSCH
ECU: MED17.1.21
Stock power: 122 HP
SW upgrade: 04E906023BK_6854

Variant 5

ECU

Catalog engine: 1400 122HP
Engine code: CZTA
Controller brand: BOSCH
ECU: MED17.1.21
Stock power: 122 HP
ECU SW: 5007
ECU HW: 04E906023BK
SW upgrade: 04E906023BK_5007
Calibration: 04E906023BK

Variant 6

ECU

Catalog engine: 1400 122HP
Engine code: CRJA
Controller brand: BOSCH
ECU: MED17.1.21
Stock power: 122 HP
ECU SW: 7715
ECU HW: 04E906023A
SW upgrade: 04E906023A_7715
Calibration: 04E906023A

Variant 7

ECU

Catalog engine: 1400 122HP
Engine code: CRJA
Controller brand: BOSCH
ECU: MED17.1.21
Stock power: 122 HP
ECU SW: 6022
ECU HW: 04E906023A
SW upgrade: 04E906023A_6022
Calibration: 04E906023A

Variant 8

ECU

Catalog engine: 1400 122HP
Engine code: CZTA
Controller brand: BOSCH
ECU: MED17.1.21
Stock power: 122 HP
ECU SW: 3532
ECU HW: 04E906023AK
SW upgrade: 04E906023AK_3532
Calibration: 04E906023AK_3532

Variant 9

ECU

Catalog engine: 1400 122HP
Engine code: CZTA
Controller brand: BOSCH
ECU: MED17.1.21
Stock power: 122 HP
ECU SW: 3670
ECU HW: 04E906023AK
SW upgrade: 04E906023AK_3670
Calibration: 04E906023AK_3670

Related vehicles

Other vehicles built on the MED17.1.21 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the VOLKSWAGEN JETTA on the MED17.1.21?

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 MED17.1.21 ECU software on this model?

Yes — the VOLKSWAGEN JETTA on the MED17.1.21 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.