Audi R8 5.2 V10 FSI ECU File – 420910552C / 400762 / SW 0040 (Bosch MED9.1 Performance Tune)

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Audi R8 5.2 V10 FSI ECU File – 420910552C / 400762 / SW 0040 (Bosch MED9.1 Performance Tune)

  • Thread starter Thread starter Bin
  • Start date Start date
  • Tagged users Tagged users None
Audi R8 5.2 V10 FSI ECU File – 420910552C / 400762 / SW 0040 (Bosch MED9.1 Performance Tune)
This Stage 1 tuning file delivers a noticeable performance enhancement for the 5.2-liter V10 FSI engine in the 2011 Audi R8. Tailored for Bosch MED9.1 ECU hardware with software version 0040 and ID 400762, it ensures improved throttle dynamics, optimized fueling, and refined ignition timing. Suitable for road and track use, while maintaining smooth drivability and reliability under aggressive load.

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A new product by Bin is available: Audi R8 5.2 V10 FSI ECU File – 420910552C / 400762 / SW 0040 (Bosch MED9.1 Performance Tune) 0261S02465 - Stage 1 remap for Audi R8 5.2 V10 FSI — sharper throttle, refined fuel maps and maximum safe gains on Bosch MED9.1 ECU.


Audi R8 5.2 V10 FSI ECU File – 420910552C / 400762 / SW 0040 (Bosch MED9.1 Performance Tune) 0261S02465

Description​

ParameterValue
Producer:Audi
Series:R8
Model:5.2 V10 FSI
Model Year:2011
Type (Engine):Petrol
Displacement:5.2
Gear:Automatic transmission
Producer (ECU):Bosch
Build (ECU):MED9.1
ECU-Nr. Prod:420910552C
ECU-Nr. ECU:0261S02465
Software:400762
SW-Version:0040
Checksum:No CS
Cpu:Freescale PowerPC
Eprom 8-Bit sum:BC7C
Nested Versions:1 modified version included (Stage 1) + Original for reference
Project Size:2 097 152 bytes
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Extended Product Information​

  • Stage 1 file for naturally aspirated 5.2L V10 FSI
  • Throttle response recalibrated for sharper input and more linear power delivery
  • Optimized fuel and ignition maps to extract safe gains without sacrificing reliability
  • Lambda targets refined for better part-throttle economy and full-load enrichment
  • Speed limiter raised; engine revs to factory-safe limits
  • Torque request mapping adjusted for improved midrange urgency
  • Checksum section left untouched – verify manually if needed
  • Compatible with Bosch MED9.1 (SW 0040 / ECU ID 400762)
  • Ideal for use with sport exhaust systems and improved cooling
  • Delivered with original and modified versions


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