Audi RS6 (4F) 5.0T 4F5910552 0080 - ECU Stage 3

Make Audi
Model RS6 (4F)
Engine 5.0T (580)
ECU Supplier Bosch
ECU Model MED9.1.1
Mfgr. ID 4F5910552 0080
Supplier ID 398567
Misc. ID 55BC6A2JG_48C1_073
Project Type ECU Stage 3
Description

Stage 3 - 1000 PS, 1195 Nm

Requirements for the car:

  1. WMI (Aquamist) with minimum dual 1.0mm nozzles. The mapswitch output must be set to 5V and connected to the rear o2 inputs of both ECU's. The rear o2's must be removed. It must have 5V on the wire when WMI is turned on and everything OK and 0V when it is in failure state or turned off.
  2. Upgraded turbos, the car used turbos from Turbosystems.
  3. Full exhaust. E.g. 3" downpipes and 2.75" Milltek catback.
  4. Recommend upgrading the intercoolers because the stock ones usually leak on all these cars.
  5. Everything else is stock (HPFP etc).

There are multiple code modifications, so the full file has to be flashed, including the MPC area:

  1. Fixed limp mode / throttle cut when boost exceeds 2560 mbar.
  2. Added WMI mapswitching, the added maps can be found in the CSV.

Some notes:

  • DI window extended
  • Pressure sensor range extended
  • Full closed loop boost control with target boost of 1.5 bar. No half-assed "open loop" solutions in application mode.
  • 98 RON + WMI
  • You will most likely have to edit a large amount of parameters, especially the boost PID...
Images
Original Files
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4F5910552_0080_Original.zip
Modified Files
4F5910552_0080_Stage_3.csv
4F5910552_0080_Stage_3.zip
Credits 40