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Chiptuning files » ECU and TCU » Bosch MD1CS104

Bosch MD1CS104 tuning files

Engine control unit (ECU) · used in 6 vehicles in this catalogue

Modifications for this unit

Engine performance

Stage 1 Stage 2 BASE

Sound and driving

Exhaust flap control/off Cold start off - Catalyst heating off Start/Stop System Off VMAX speedlimit on/off higher/lower Idle RPM Mod

Deactivations and fixes

DTC off Catalyst off DPF/OPF/GPF off EGR off AdBlue off Swirl flaps off TVA off AGS off Readiness ok CVN correction Checksum Correction Smoke test fix EGT sensor off

Immobiliser and cloning

Which stage and which options are possible differs per vehicle with this unit. Open a vehicle below for its figures.

Vehicles with this unit

Vehicle	Generation	Fuel	Power	ECU
Audi A3 35 TDI (2.0D)	8Y Facelift 2024	Diesel	150 hp	Bosch MD1CS104
Audi A5 2.0 TDI	B10 11/2024	Diesel	204 hp	Bosch MD1CS104
Audi A6 2.0 TDI	C9 04/2025	Diesel	204 hp	Bosch MD1CS104
Audi Q3 2.0 TDI	FJ 09/2025	Diesel	150 hp	Bosch MD1CS104
Audi Q5 2.0 TDI MHEV	GU 09/2024	Diesel (mild hybrid)	204 hp	Bosch MD1CS004, Bosch MD1CS104
Audi Q5 40 TDI (2.0D)	GU 09/2024	Diesel (mild hybrid)	204 hp	Bosch MD1CS004, Bosch MD1CS104

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.

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Autotuner: Bench after remote unlock

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