Volkswagen · Mk7 (MQB) · 2015–2021
Golf / GTI / Golf R / SportWagen / Alltrack 2015–2021 engine ECU part numbers
5 engines, 7 ECU part-number families. Find the controller your car runs, then clone it onto a donor or adapt it remotely.
Engines and their ECUs
| Engine | Engine codes | ECU family | Part-number prefix |
|---|---|---|---|
| 1.8 TSI (EA888 Gen3) | CXBB | Continental Simos 18.1 or Bosch MED17.5.25 (by build) | |
| 2.0 TSI (GTI) | CXCA, CXCB, DKFA | Bosch MED17.5.21 / MED17.5.25 or Simos 18 (by build) | |
| 2.0 TSI (Golf R) | CJXC, DJHA | Bosch MED17.5.21 | |
| 1.4 TSI (Golf, 2019–2021) | DGXA | Continental Simos / Bosch MED17 (by build) | |
| 2.0 TDI (2015) | CRUA | Bosch EDC17C64 |
2.0 TSI (GTI)
CXCA, CXCB, DKFA
Bosch MED17.5.21 / MED17.5.25 or Simos 18 (by build)
Three different ECU part-number families sit on the same 2.0T across Mk7 build years. Text the label — a donor from the wrong family will not clone.
The part-number prefix is the family-level part of the label (for example 06J 906 026 CK). A donor must match the full number, which we confirm against your VIN for free before you buy.
Clone the Golf / GTI / Golf R / SportWagen / Alltrack ECU — $350 flat
Mail your original and a donor with the same full part number. VIN, immobilizer data, coding and adaptations are copied across on the bench, typically within 24 hours of arrival. Factory immobilizer stays on.
Volkswagen engine ECU cloneOn-car software step — remote ODIS, $250
Some cars still want an on-car step after a module swap: a software version management (SVM) update, coding, or a basic-settings adaptation. Plug a J2534 pass-thru interface into the car and we run the factory ODIS software on it from our bench — no dealer visit. The same session covers coding after any other VW or Audi module replacement.
Book the VW / Audi remote sessionFrequently asked questions
Which engine ECU does a 2015–2021 Golf / GTI / Golf R / SportWagen / Alltrack have?
It depends on the engine. The 1.8 TSI (EA888 Gen3) (CXBB) runs Continental Simos 18.1 or Bosch MED17.5.25 (by build), part-number prefix 5G0 906 259 or 06K 907 425. The 2.0 TSI (GTI) (CXCA, CXCB, DKFA) runs Bosch MED17.5.21 / MED17.5.25 or Simos 18 (by build), part-number prefix 06K 907 309 or 06K 907 425 or 5G0 906 259. The 2.0 TSI (Golf R) (CJXC, DJHA) runs Bosch MED17.5.21, part-number prefix 06K 907 309. The 1.4 TSI (Golf, 2019–2021) (DGXA) runs Continental Simos / Bosch MED17 (by build), part-number prefix 04E 906 023 or 04E 907 309. The 2.0 TDI (2015) (CRUA) runs Bosch EDC17C64, part-number prefix 04L 906 016 or 04L 907 309. The label on your module settles it in seconds.
Can you clone the ECU on a Golf / GTI / Golf R / SportWagen / Alltrack Mk7 (MQB)?
Yes — every engine ECU on this generation is a routine bench clone. Mail your original and a donor with the same full part number and we copy the VIN, immobilizer data, coding and adaptations across for $350 flat, typically within 24 hours of arrival.
Will a cloned Golf / GTI / Golf R / SportWagen / Alltrack ECU need dealer adaptation?
Usually not — it leaves the bench carrying your VIN, immobilizer data, coding and adaptations. If the car still asks for an on-car step, we run it remotely with ODIS over your J2534 interface for $250.