: Your vehicle's integration level (software version) might be newer than the DATEN files in your NCS Expert installation, making some parameters "unrecognizable".

The most frequent solution is to ensure your work folder is "clean" before starting. Navigate to your C:\NCSEXPER\WORK folder. Open FSW_PSW.MAN with Notepad.

: Manually entering a value that the specific module version doesn't support (e.g., setting a battery capacity that wasn't an option for your build year).

The error code (often translated as "FSW faulty" or "FSW invalid") is a common obstacle when coding BMW vehicles using NCS Expert . It typically indicates that the software has encountered an unrecognized parameter or a corrupted manipulation file in your working directory. What Causes COAPI-1141?

inside the file and save it so it is 0KB in size. Do not delete the file itself, just its contents. Error When Coding For New Battery Ah - Bimmerpost

: A non-empty FSW_PSW.MAN file from a previous coding session can conflict with a new module read.

: Windows sometimes hides file extensions, causing users to accidentally create a file named FSW_PSW.MAN.txt , which NCS Expert cannot read. How to Fix COAPI-1141 1. Clear the Manipulation File