Škoda Roomster Delphi DCM3.7 4F0909444AA / 03P906021H

Technical data

About this file

Typical uses: restoring a control unit to its factory software after a failed flash or a corrupt memory, a clean base before any change, comparing a read of your own with the original. The checksum is the one of the read; your programmer or the CARTESIAN app corrects it after a change.

In CARTESIAN this original file is the base for DPF off, EGR off, AdBlue (SCR) off, lambda off, swirl flaps off and DTC off, each saved with a correct checksum, and for returning a modified unit to stock.

How to use this file

1. Order with your e-mail address; the download link comes right after the payment and is valid for 30 days.
2. Open the file in your programmer, compare its numbers with your unit and check the checksum.
3. Write it only to a Delphi DCM3.7 whose label carries the same hardware and software numbers.

Before you write Compare the numbers on your control unit with this file, hardware number 4F0909444AA and software number 03P906021H. A file written to a unit with other numbers can damage it. Not sure? Give your own read to the search above: it is compared by content.

Other reads of this pair

The same hardware and software numbers, read from other vehicles or at other times; each has its page.

All reads of 4F0909444AA / 03P906021H

Other pairs of Delphi DCM3.7

Delphi DCM3.7 original files

The Delphi DCM3.7 unit page