Stage 1 BMW X1 E84 18D 2.0 Turbo-Diesel ECU Calibration File – 538406 (EDC17C41) O_7CWFUE534A

• Stage 1 file created with improved torque & fuel logic
• Software version 538406 verified on EDC17C41
• No CVN, VIN or emissions system interference
• CMD Flash tool compatibility confirmed​

• Developed for drivers seeking extra torque without emissions deletes
• Preserves factory drivability with enhanced load response
• Flash via CMD Flash or equivalent tool
• Ensure ECU ID 538406 matches before programming
• Off-road/closed circuit use only​