Original file

Audi A3 Bosch MED17.5.2104E907309A / 1037527778

An original (stock) flash read of the Bosch MED17.5.21 control unit, fitted in Audi A3, hardware number 04E907309A and software number 1037527778, 2,560.00 KB. The file is supplied exactly as it was read from the unit, byte for byte; nothing is changed in it.

Technical data

Vehicle
BrandAudi
Car modelA3
Engine1.4 petrol 122PS
Fuelpetrol
Displacement1.4
Power122.4PS / 90.0kW
Control unit
Control unitBosch MED17.5.21
ECU makerBosch
Hardware number04E907309A
Software number1037527778
File
File typeOriginal flash read
File size2,560.00 KB
File keye1d78cfcf9dd222d
Price15 €

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 lambda off, EGR off, flaps off, start/stop 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 Bosch MED17.5.21 whose label carries the same hardware and software numbers.

Before you write Compare the numbers on your control unit with this file, hardware number 04E907309A and software number 1037527778. 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.

VehiclesSizeFrom the file nameContentsPriceAdd to cart
Flash4,096.00 KBFlash15 €Add to cart
Audi A32,560.00 KBFlash15 €Add to cart
Audi A32,560.00 KBFlash15 €Add to cart
Audi A3 - A3 Berline 1.4 TSI4,096.00 KBFlash15 €Add to cart
Audi 8V 1.4 TSI2,560.00 KBFlash15 €Add to cart

All reads of 04E907309A / 1037527778

Other pairs of Bosch MED17.5.21

HardwareSoftwareVehicles
04E907309A04E906016FVolkswagen VII MKI
04E907309A04E907309AVolkswagen Golf
04E907309A1037525859Audi A3 1.4 TFSI, Audi A3
04E907309A1037527755Audi A3 1.4 TSI/TFSI, Audi Leon 1.4 TSI, Seat
04E907309A1037530099Audi A3, Audi A3 - A3 Berline
04E907309A1037530186Volkswagen Golf 1.2 TSI, Volkswagen Golf 7
04E907309A1037530196Audi
04E907309A1037531172Škoda Octavia

Bosch MED17.5.21 original files

The Bosch MED17.5.21 unit page