03P906021A 9978 CFWA Delphi DCM3.7 Volkswagen Polo (1.2 TDI 75hp) Original ECU File
About this file
This is the original ECU file 03P906021A 9978 CFWA for Volkswagen Polo 1.2 TDI 75hp: Delphi DCM3.7, hardware (HW) 03P906021A, software (SW) 9978. To buy it, use Quick buy below — €20 by card, no registration, a ready-to-use .bin file by e-mail — or buy it with a file-service account (register or log in and top up your balance). Also you can find all available options on our platform for emissions removal (DPF, EGR, AdBlue) or improving power with stage 1/2/3 or ECO tuning.
This is an original (stock) read of a Delphi DCM3.7 control unit. Our catalogue lists it for the Volkswagen Polo 1.2 75hp.
Its numbers in the catalogue: hardware (HW) number 03P906021A and software (SW) number 9978.
One other file in our catalogue has the same pair of numbers (03P906021A / 9978), and it has the same listed numbers, vehicle and engine: the catalogue lists this file more than once.
In our catalogue the hardware number 03P906021A is on 12 files for 2 vehicles.
All Volkswagen Polo Delphi DCM3.7 files: 150 in our catalogue.
What you receive
- The original (stock) read of this ECU, exactly as read — no modifications.
- A ready-to-use .bin file by e-mail — nothing to unpack or rename.
- The original read only — no full backups, EEPROM, SGO, VBF or other formats.
Before you order
- All sales are final. Check HW, SW and calibration against your own read before you buy.
- Different tools expect different file sizes when writing to the ECU — make sure the file suits your device.
- Not sure? Ask us on WhatsApp before buying.
File specifications
| Brand name and model | Volkswagen Polo |
| Engine power | 1200 75HP |
| Engine code | CFWA |
| ECU brand name | DELPHI |
| ECU model name | DCM3.7 |
| ECU hardware | 03P906021A |
| ECU software | 9978 |
| ECU calibration | 03P906021A_9978 |
| ECU SW upgrade | 03P906021A_9978 |
| Also written as | 03P 906 021 A · 03P906021A 9978 |
| Other files with these numbers | HW 03P906021A |
2 files with these numbers
They share the hardware and software numbers; the calibration and the vehicle tell them apart. Compare them with your own read — this page is 03P906021A 9978.
- 03P906021A 9978Volkswagen Polo 1.2 75hp · CFWAthis page
- 03P906021A 9978Volkswagen Polo 1.2 75hp
Get this original file — alone or with its WinOLS map pack
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Original + map pack
The original .bin and its map pack (CSV) — for WinOLS and compatible software
- 57 tuning maps for this software version — Engine Torque, Rail, Turbo System, Injection System…
- X / Y axes labelled correctly, correct factors
- One ZIP by e-mail: .bin + .csv map pack
- Axes checked against this original: 79 of 79 read correctly
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- Map definitions only — no tuned file, no support
- All sales are final — check HW / SW before you buy
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Maps in this map pack · 57
Open the map pack page →Loading…
WinOLS map pack for this file 57 maps
A WinOLS map export (CSV) made for this software version: tuning maps only, with correctly labelled X and Y axes and the correct factor for the data values — no maps for switching off emissions or errors. Maps by category:
For example: Limiter of Maximum torque, Maximum torque limiter f(fuel_T), Rail pressure, Rail pressure limiter f(RPM,Fuel_Q), Limiter of Turbo pressure, Limiter of Turbo pressure f(APS), Injection time, Smoke limitation - Lower Lambda value…
We modify this exact ECU for you
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- DPF / FAP OFF
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- AdBlue / SCR OFF
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