This listing is a WinOLS .OLS project for BMW 3 Series G20 B58.

This listing is an .OLS WinOLS project. It is a professional calibration resource, not an original flash file.

The archive is left as packed. It contains .OLS project file(s).

Match hardware MG1CS201 and software R4C9J7A5BKONY8 before you write. Verify exact HW/SW before programming.

Intended for professional calibration use in WinOLS or an equivalent toolchain.

Related services

• this DAMOS listing is a calibration definition/resource — not a flash file. A full backup is a different product.
• Corrupted ECU File Repair (digital file after a failed write, not physical ECU electronics): €50 — contact support with HW/SW and the tool you use.

Professional use only

These files are intended for professional tuners, ECU specialists and workshops. You must understand flashing, checksums, boot/bench recovery and the risk of a no-start. We do not sell this as a DIY kit for untrained use.

Digital product — no refund after payment

This is a digital file delivered after payment. Once it is paid we cannot refund, reverse or take back the download. Check hardware and software numbers on the controller sticker before you buy.

FAQ — BMW 3 Series G20 B58 WinOLS .OLS project

Is this a flash file?

No. This BMW 3 Series G20 B58 file is a .OLS WinOLS project only.

Who can use this resource?

Professional tuners and calibration specialists who already work with DAMOS / A2L / map packs. Digital product — no refund after payment.