Overview
Submitting a BMW file through the JB Remap File Service Portal is straightforward — but the quality of your submission directly affects the quality and speed of the calibration you receive. This guide walks through the complete process.
What This Guide Covers
Ensure every file submission includes the correct information, the right file format, and sufficient context for the calibration engineer to deliver an optimal result on the first attempt.
Vehicle and Engine Applicability
All BMW ECU and TCU file submissions through the JB Remap File Service Portal.
Pre-Tuning Checks
Before submitting: verify you have a complete original read, gather vehicle details (VIN, year, engine, mileage), document current hardware modifications, note the reading tool and method used, and check for active fault codes.
Related BMW Resources
Ready to Get Started?
Submit your BMW ECU file through the JB Remap File Service Portal.