Ecotune Software - VAG 3.0/4.0 S TDI (2017 onwards)
SKU: VAG3040STDI
Transform your V6 or V8 diesel with Ecotune 3.0 & 4.0 S TDI software. Massive torque gains and refined power delivery, professionally installed at MGM Leeds.
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Fast UK Delivery
Delivered in 2-3 Business DaysFast UK Delivery on all Orders, please see delivery information.
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30 Day Money Back
GuaranteeAll returns must be postmarked within fourteen (14) days of the purchase date. All returned items must be in new and unused condition, with all original tags and labels attached.
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Ecotune’s recalibration for the VAG 3.0 and 4.0 S TDI engines represents the pinnacle of diesel performance engineering. Designed to unlock the hidden potential of these sophisticated power units, our software provides a dramatic increase in mid-range pull and overtaking ability. By refining injection timing and boost pressure, we achieve a perfect balance between high-output performance and the everyday drivability you expect from a premium German vehicle.

Why Choose Ecotune S TDI Software?
- Torque Management: Optimized torque curves provide effortless acceleration across the entire rev range.
- Dynamic Response: Reduced turbo lag for sharper throttle input and more immediate power delivery.
- Efficiency Gains: Improved combustion efficiency can lead to better fuel economy during steady-state cruising.
- Precision Calibrations: Specifically mapped to work within the thermal limits of the 3.0 and 4.0 TDI turbochargers.
- MGM Leeds Expertise: Flashed in-house by our technicians to ensure your vehicle is performing at its peak.
Available Tuning Options
We offer tailored calibrations for both engine and transmission to ensure a cohesive driving experience. Please specify your preference when booking at MGM Leeds.
Engine ECU Remap
Unlocks the primary power and torque increases for the 3.0 or 4.0 TDI unit while maintaining all factory emissions and safety hardware.
ECU + TCU Integration
Strongly recommended for S TDI models. Remaps the gearbox to increase torque limits and optimize shift points to match the new diesel power band.
Workshop Installation & Service
This software is a professional service provided exclusively at our state-of-the-art facility. We do not offer remote tuning for this specific platform due to the precision required.

Vehicle Compatibility
This software is compatible with high-output V6 and V8 diesel variants across the VAG range, including Audi S-models and performance SUVs.
| Engine Type | Popular Models |
|---|---|
| 3.0 S TDI (Single/Bi-Turbo) | Audi S6, S7, SQ5, A8 TDI |
| 4.0 S TDI (Triple-Turbo/MHEV) | Audi SQ7, SQ8, Bentley Bentayga Diesel |
Pre-Tuning Requirement: Vehicles must be free of DPF or EGR fault codes prior to installation. Check your potential torque figures using our Tuning Calculator.
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MOORFIELD GARAGE LIMITED is an Introducer Appointed Representative of Ideal Sales Solutions Ltd, t/a Ideal4Finance. Ideal Sales Solutions Ltd is a credit broker and not a lender (FRN 703401). Finance available subject to status. The rate offered is always provisional and will depend upon your personal circumstances, the loan amount and the term.