Fiat 500L 1.3 JTD .OLS Marelli 55274377 SW 4B45X110

This listing is a WinOLS .OLS project (not a .KP) for the Fiat 500L 1.3 JTD (Marelli).

This listing is an .OLS WinOLS project file. It is not a .KP pack and not an original flash / calibration file to write to the ECU.

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

Match hardware 55274377 and software 4B45X110 on the ECU sticker before you open this in WinOLS. A neighbouring software version on the same 500L can still be the wrong project.

Fiat 500L 1.3 JTD specifications

Price €15. A full ECU backup for clone or recovery is €20 on request. ECU flash repair after a failed write is €50.

Full backups and ECU flash repairs

• Full ECU backup (complete image for clone or recovery): €20 on request — this DAMOS listing is map definitions — it is not a flash file or a full backup.
• ECU flash repair after a failed write or brick: €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 ECU sticker before you buy.

FAQ — Fiat 500L 1.3 JTD WinOLS .OLS project

Is this a .KP or a flash file?

No. This Fiat 500L 1.3 JTD file is a .OLS WinOLS project only. Original flash files for the same car are listed separately at €11.

Which engine is this .OLS for?

This pack is named for the 1.3 JTD on the Fiat 500L.

Who can use this file?

Professional tuners and ECU specialists who already work in WinOLS. This is a digital product and cannot be refunded once paid.