What does the MED17.5.21 tool do?
Mapswitch for the Bosch MED17.5.21 (VAG, MB, Porsche, Ferrari). You can merge 2–8 finished calibration files into one VIN-locked file, or patch a single stock file from a WinOLS map list.
| Family | MED17 |
|---|---|
| Cars | VAG, MB, Porsche, Ferrari |
| How you build it | Multi-file, or one stock file plus a WinOLS map list |
| Map-list profile | med17521 |
How does multi-file work?
Upload one finished calibration per slot, starting at slot 1. The minimum is 2 files and the maximum is 8, plus a quick-toggle slot on Essential. Basic is up to 4 slots. The 17-character VIN sets the brand and the credit price. A wrong VIN is not refunded. Updates for the same VIN are unlimited, and the tunes are not stored on the server. Multi-file was developed with VehiCAL.
How does the map list work?
Upload the stock file and the WinOLS CSV of the maps to switch. The tool patches mapswitch into that file. Export the list with how to export a CSV from WinOLS, or copy one map’s address from map properties.
How do you switch maps?
- Cruise control: hold cruise down, then press up or down.
- Pedal: hold the brake, then press and release the accelerator.
- Quick toggle: hold cruise cancel to select the quick-toggle map.
The other MED17 ECUs are on the MED17 hub. Map slots are explained on the mapswitch page.