Rt3 Upgrade 651 Na 663 Build 890 Can42 New Work [2026]

While official Peugeot/Citroën dealers may no longer stock these older discs, they are often available in community forums such as the Peugeot Forums or the French Car Forum .

: Firmware starting with 5.x is for older VAN-bus vehicles. Do not attempt to install 6.63 on a 5.x system, as it will brick the unit. rt3 upgrade 651 na 663 build 890 can42 new

: Burn the disc at the slowest possible speed (e.g., 1x or 2x) using tools like ImgBurn to avoid read errors during the update. While official Peugeot/Citroën dealers may no longer stock

: Download the .iso or .rar file and burn it to a high-quality CD-R (not a CD-RW). : Burn the disc at the slowest possible speed (e

: Remove any existing navigation maps and insert the firmware CD.

: Keep your engine running throughout the entire process. If the car enters "Economy Mode," the power will cut and permanently damage the RT3 unit.