MED17 Bosch 538253 S-Max 2.0 STCI — Calibration File Stage 2  12A650

Elevate your 2012 Ford S-Max 2.0 STCI to true performance MPV status with this advanced Stage 2 calibration file. The bespoke turbo boost curve delivers instantaneous spool and sustains elevated boost pressure from 2 000 RPM through redline, yielding a 15–20 % increase in peak power while maintaining smooth, controllable delivery under all driving conditions. Injection timing and quantity maps are comprehensively overhauled to optimize atomization and combustion efficiency, resulting in a beautifully linear torque curve, eradicated flat spots, and a crisper throttle feel whether overtaking on the motorway or navigating city streets. Load-based torque and boost limiters are raised within safe OEM limits, unlocking an additional 50 Nm of torque for stronger mid-range pull and effortless acceleration even under full load.

Secondary systems receive targeted refinements: EGR flow parameters are recalibrated to reduce soot buildup, while DPF regeneration thresholds are extended to improve filter longevity without disabling emissions controls. Cold-start enrichment and idle stability maps are refined for smooth, stall-free startups in all climates. Transmission shift maps for the automatic gearbox are retuned to harmonize with the enhanced torque curve, delivering crisp, precise shifts with minimal shock. All calibration data undergoes full checksum correction and has been validated on a professional dynamometer. Installation is seamless via CMD Flash or any bench/OBD tool compatible with Bosch MED17 ECUs, ensuring a reliable upgrade with no compromise on daily usability.