• Acting as the point of contact between the plant and customer in the case of any complaints or quality problems (series production quality and warranty), incl. on site at the customer's premises if required • Responsible for initiating, coordinating and tracking remedial measures, incl. the approval of deviations by the customer, in coordination with the technical departments; incl. drawing up the presentation and communicating with the customer • Coordinating and carrying out customer audits in collaboration with the customer, incl. tracking the remedial measures • Responsible for monitoring the 8D reports in the customer portals (report on problems solved and cancellation of rejected complaints), and initiating the relevant measures to obtain final agreement on the 8D reports • Responsible for carrying out the warranty process at the plant as per VDA, internal specifications and Customer-Specific Requirements (CSR) incl. initiating an NTF (no trouble found) process if necessary • Responsible for recording the warranty parts, incl. analysing the costs and documenting warranty services and warranty statuses, as well as obtaining the specified KPIs • Analysing warranty-related data from the field (incl. access to customer warranty portals), and requesting special warranty parts if required, in order to optimise the drafting of contracts with customers • Other duties, as assigned