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In a very competitive environment, product development in automobile industry needs to be fast paced with best in quality to stay ahead in the race. Therefore a clear understanding of customer requirements is essential in successful design and development of systems. Failure in any system development step can result in costly design and tooling changes, schedule delays and ultimately, customer dissatisfaction. A team was formed to design and develop an automotive system by applying Design for Six Sigma Green Belt methods and tools. The hypothesis of this study was that a substantial opportunity exists to increase project efficiency while providing what customer wants, by following a standardized statistical work practice for managing requirements throughout the life of product development using the methodology of Design for Six Sigma DMADV (Define, Measure, Analyze, Design and Verify). In this paper an automotive HVAC system is designed following DFSS methodology.