Support and discussion for BMW CAS4 Editor v1.0 for mask 1L15Y. Edit ECU Secret Key SK ISN and CAS Secret Key. Change VIN and mileage. EGS ISN sync. Key frequency and remote ID. Manage eight key slots. Export to TXT with auto checksum fix. Works with XPROG-M UPA-S Orange5 VVDI Prog Rosfar. CAS4 only not CAS4 Plus. Also searched as CAS 4.

BMW CAS4 Editor v1.0 — 1L15Y SK ISN VIN ODO — Community Help​

Free CAS4 Editor for 1L15Y. View and edit ECU SK ISN and CAS SK. Change VIN and odometer. Sync EGS ISN. Set key frequency 315 433 868 and edit remote ID. Check all eight key slots. Checksums corrected on save. Compatible with XPROG-M UPA-S Orange5 VVDI Prog Rosfar.

Quick intro
CAS4 Editor v1.0 targets MC9S12XDP512 with mask 1L15Y. It exposes deep data for repairs cloning and synchronization. Open EEPROM dump make changes with Edit Data or EGS ISN Sync then save. The tool writes corrected checksums which keeps files consistent for programming.

Click to expand...

Identify your module — 1L15Y only

• Designed for CAS4 with 1L15Y mask
• Not for newer CAS4 Plus and not for CAS3 or CAS3 Plus
• If unsure read the label or the MCU mask before editing

What is inside

• Overview and screenshots
• Change log and compatibility notes
• Guides for VIN and mileage edits SK and ISN workflow EGS sync
• Key management tips frequency and remote ID editing
• Troubleshooting and known errors
• Download link and setup notes

Common questions

• SK or ISN does not save — recheck mask 1L15Y and write full dump then read back for verify
• EGS sync fails — confirm matching ISN in ECU and CAS then repeat sync and cycle ignition
• Keys not detected — review slot status and frequency then rewrite key data and save
• VIN or mileage not applied — ensure correct area edited and no read only file flag
• Checksum warning — save through the editor which repairs checksum automatically

Download and full details — CAS4 Editor v1.0 for 1L15Y