BMW EWS editor

Inspect the dump, edit its values and save a separate copy.

Open an EWS dump

Supports EWS 1, 2, 3, 3+ and 4, including the alternate layouts.

Raw binary only: exactly 512 or 1,024 bytes.

This service is free. Upload first, then sign in or create a free account to process your files and save your results.

Identify your EWS module

Photos, PCBs & main chips

Compare the housing label, HW / SW version and chip marking. Photos are examples, and a matching case does not confirm the correct dump layout.

EWS3.2

Early EWS3 example
Main chip
Motorola MC68HC(7)11EA9 family
Early-board mask
2D47J · ZC424139CFN shown
Example label
61.35-8 374 945 · HW 01 / SW 03
PCB
Separate early EWS3 board; ELMOS 10029A beside the MCU.

3.2 is a system revision; the housing says EWS3. These early EWS3 examples do not establish a unit's 3.2 identity. Confirm it through diagnostics.

EWS4.3

Label confirmed
Main chip
Motorola / Freescale MC9S12 (HCS12) family
Common mask
2L86D
Example label
61.35-9 145 097-02 · HW 06
Software shown
V2 03 0006 · CEL P/N 5404

The PCB photo is from a different EWS4.3 unit. Board details and component placement can vary with the hardware revision.

MCU means microcontroller. Codes such as 2D47J and 2L86D are chip mask identifiers, not module versions. Photos are credited to their linked sources. Reference checked 23 September 2026.