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Chiptuning files » Solutions » Flex fuel mod for E85 or other fuel types » Audi » A6

Flex fuel mod for E85 or other fuel types for Audi A6

The engine adapts to the fuel that is in the tank, from petrol to E85 and any blend in between. This is not a fixed E85 calibration. 54 engines.

Audi A6 engines with Flex fuel mod for E85 or other fuel types

EngineGenerationFuelStockECURead tools
3.0 TFSIC9 04/2025Petrol367 hpBosch MG1CS202Autotuner
55 TFSI (3.0T)C8 Facelift 06/2023 2025Petrol (mild hybrid)340 hpBosch MG1CS002Autotuner, FLEX
RS6 4.0 TFSI V8C8 Facelift 06/2023 2025Petrol (mild hybrid)600 hpBosch MG1CS008Autotuner, FLEX
40 TFSI (2.0T)C8 07/2018 2023Petrol190 hpBosch MG1CS001, Bosch MG1CS111, Siemens/Continental Simos 18.10, Siemens/Continental Simos 18.4, Siemens/Continental Simos 19.7Autotuner
40 TFSI (2.0T) (2020 - 2023)C8 07/2018 2023Petrol204 hpSiemens/Continental Simos 19.7Autotuner
40 TFSI (2.0T) (2019 - 2023)C8 07/2018 2023Petrol204 hpSiemens/Continental Simos 19.7Autotuner
45 TFSI (2.0T) (2019 - 2023)C8 07/2018 2023Petrol224 hp
45 TFSI (2.0T)C8 07/2018 2023Petrol245 hpSiemens/Continental Simos 16, Siemens/Continental Simos 18.4, Siemens/Continental Simos 19.3, Siemens/Continental Simos 19.7Autotuner
45 TFSI (2.0T) (2018 - 2020)C8 07/2018 2023Petrol245 hpSiemens/Continental Simos 16, Siemens/Continental Simos 18.4, Siemens/Continental Simos 19.3, Siemens/Continental Simos 19.7Autotuner
45 TFSI (2.0T)C8 07/2018 2023Petrol265 hpSiemens/Continental Simos 19.7Autotuner, FLEX
45 TFSI (2.0T) (2020 - 2023)C8 07/2018 2023Petrol265 hpSiemens/Continental Simos 19.7Autotuner, FLEX
50 TFSI-e (2.0T PHEV) (2020 - 2021)C8 07/2018 2023Petrol hybrid299 hpSiemens/Continental Simos 19.8Autotuner
50 TFSI-e (2.0T PHEV) (2021 - 2023)C8 07/2018 2023Petrol hybrid299 hpSiemens/Continental Simos 19.8Autotuner
55 TFSI (3.0T)C8 07/2018 2023Petrol340 hpBosch MG1CS002Autotuner, FLEX
55 TFSI E-Quattro (2.0T)C8 07/2018 2023Petrol plug-in hybrid367 hpSiemens/Continental Simos 19.2, Siemens/Continental Simos 19.8Autotuner
55 TFSI-e (2.0T PHEV) (2020 - 2021)C8 07/2018 2023Petrol plug-in hybrid367 hpSiemens/Continental Simos 19.2, Siemens/Continental Simos 19.8Autotuner
55 TFSI-e (2.0T PHEV) (2021 - 2023)C8 07/2018 2023Petrol plug-in hybrid367 hpSiemens/Continental Simos 19.2, Siemens/Continental Simos 19.8Autotuner
RS6 4.0 TFSIC8 07/2018 2023Petrol (mild hybrid)600 hpBosch MG1CS008Autotuner, FLEX
RS6 4.0 TFSI V8 (Facelift) (11/2022 - ...)C8 07/2018 2023Petrol (mild hybrid)600 hpBosch MG1CS008Autotuner, FLEX
RS6 Performance 4.0 TFSI V8 (Facelift) (11/2022 - ...)C8 07/2018 2023Petrol (mild hybrid)630 hpBosch MG1CS008Autotuner
2.0 TFSIC7 2011 2014Petrol180 hpBosch MED17.1, Siemens/Continental Simos 18Autotuner, FLEX
2.8 FSIC7 2011 2014Petrol204 hpSiemens/Continental Simos 8.10Autotuner
2.0 TFSIC7 2011 2014Petrol211 hpBosch MED17.1, Bosch MED17.1.1, Bosch MED17.5.2Autotuner, FLEX
2.0 TFSI hybridC7 2011 2014Petrol plug-in hybrid245 hpBosch MED17.1.1Autotuner
2.0 TFSIC7 2011 2014Petrol252 hpBosch MED17.1, Siemens/Continental Simos 18.1, Siemens/Continental Simos 18.4, Siemens/Continental Simos 18.6Autotuner, FLEX
3.0 TFSIC7 2011 2014Petrol272 hpSiemens/Continental Simos 16.11, Siemens/Continental Simos 8.5Autotuner
3.0 TFSI CompressorC7 2011 2014Petrol300 hpSiemens/Continental Simos 12.1, Siemens/Continental Simos 12.2, Siemens/Continental Simos 16, Siemens/Continental Simos 18.1, Siemens/Continental Simos 18.10, Siemens/Continental Simos 18.2, Siemens/Continental Simos 18.3, Siemens/Continental Simos 18.6, Siemens/Continental Simos 8.3, Siemens/Continental Simos 8.31, Siemens/Continental Simos 8.5Autotuner
3.0 TFSi CompressorC7 2011 2014Petrol310 hpSiemens/Continental Simos 8.5Autotuner, FLEX
3.0 TFSI CompressorC7 2011 2014Petrol333 hpSiemens/Continental Simos 16.1, Siemens/Continental Simos 16.11, Siemens/Continental Simos 18.10, Siemens/Continental Simos 8.4, Siemens/Continental Simos 8.5Autotuner
2.0 TFSiC6 Facelift 2008 2010Petrol170 hpBosch MED9.1, Bosch MED9.1.5Autotuner
2.8 FSiC6 Facelift 2008 2010Petrol190 hpSiemens/Continental Simos 8.1, Siemens/Continental Simos 8.1xFLEX
2.8 FSiC6 Facelift 2008 2010Petrol220 hpSiemens/Continental Simos 8.1, Siemens/Continental Simos 8.6
3.2 V6 FSIC6 Facelift 2008 2010Petrol265 hpSiemens/Continental Simos 8.2Autotuner
3.0 TFSiC6 Facelift 2008 2010Petrol290 hpSiemens/Continental Simos 8.1, Siemens/Continental Simos 8.3, Siemens/Continental Simos 8.31, Siemens/Continental Simos 8.4, Siemens/Continental Simos 8.5Autotuner, FLEX
4.2 FSiC6 Facelift 2008 2010Petrol350 hpBosch MED9.1, Bosch MED9.1.1, Bosch MED9.1.xAutotuner, FLEX
2.0 TFSiC6 2004 2008Petrol170 hpBosch MED9.1, Bosch MED9.1.5Autotuner, FLEX
2.4i V6C6 2004 2008Petrol177 hpSiemens/Continental Simos 6.2, Siemens/Continental Simos 6.3Autotuner
2.4LC6 2004 2008Petrol180 hpSiemens/Continental SIMOS6.2/6.3FLEX
2.0 TFSiC6 2004 2008Petrol200 hpBosch MED9.1.5
2.8 FSIC6 2004 2008Petrol210 hpSiemens/Continental Simos 8.1
3.2 FSi V6C6 2004 2008Petrol255 hpSiemens/Continental SIMOS6.2/6.3, Siemens/Continental Simos 6.2, Siemens/Continental Simos 6.3Autotuner, FLEX
3.2L FSIC6 2004 2008Petrol265 hpSiemens/Continental Simos 8.2xFLEX
4.2 FSi V8C6 2004 2008Petrol335 hpBosch ME7.1.1, Bosch MED9Autotuner
1.8i 20vC5 1997 - 2004Petrol125 hpBosch ME7.5Autotuner, FLEX
1.8 TC5 1997 - 2004Petrol150 hpBosch ME7.1, Bosch ME7.5, Bosch ME7.5.5Autotuner, FLEX
2.4 V6C5 1997 - 2004Petrol170 hpBosch ME7.1Autotuner
2.8i V6C5 1997 - 2004Petrol174 hpBosch ME7.1Autotuner
1.8 TC5 1997 - 2004Petrol180 hpBosch ME7.5Autotuner
2.8 V6C5 1997 - 2004Petrol193 hpBosch ME7.1
3.0 V6C5 1997 - 2004Petrol220 hpBosch ME7.1FLEX
2.7TC5 1997 - 2004Petrol230 hpBosch ME7.1
2.7TC5 1997 - 2004Petrol250 hpBosch ME7.1, Bosch ME7.1.1Autotuner, FLEX
4.2 V8C5 1997 - 2004Petrol300 hpBosch ME7.1.1Autotuner, FLEX
S6 4.2 V8C5 1997 - 2004Petrol340 hpBosch ME7.1, Bosch ME7.1.1Autotuner

Other modifications for Audi A6

Engine performance

Stage 1Stage 2 BASEStage 3 BASEE85 or other special fuels modificationLaunch control

Gearbox

Gearbox TCU tuning

Sound and driving

Pops and bangsHardcut limiterVMAX speedlimit on/off higher/lowerStart/Stop System OffHardcut Popcorn limiter for diesel

Deactivations and fixes

DTC offCatalyst offDPF/OPF/GPF offEGR offAdBlue off

Immobiliser and cloning

IMMO_OFF
Results vary per vehicle, and what is possible can differ per software version. This applies to every modification we deliver, for the ECU and for the TCU. Upload your original file to check what is available for your vehicle.

Control units

Bosch ME7.1Siemens/Continental Simos 19.7Siemens/Continental Simos 8.5Siemens/Continental Simos 19.8Bosch MG1CS008Siemens/Continental Simos 18.4Bosch ME7.1.1Siemens/Continental Simos 8.1Bosch MED9.1Siemens/Continental Simos 18.10Bosch MED17.1Bosch ME7.5Siemens/Continental Simos 16Siemens/Continental Simos 19.2Bosch MED9.1.5Bosch MED17.1.1Bosch MG1CS002Siemens/Continental Simos 18.1Siemens/Continental Simos 18.6Siemens/Continental Simos 8.4

26 more on the vehicle pages.

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