As a Sales Engineer, you will need to master following:

• calculate costs of repair operations
• check finished vehicles for quality control
• coordinate automotive repair and maintenance service
• implement sales strategies
• issue sales quotations for repairs or maintenance
• keep up-to-date on manufacturer's policies
• maintain parts inventory
• maintain vehicle records
• manage vehicle services' financial resources
• negotiate sales contracts
• prospect new customers
• provide customer information related to repairs
• purchase vehicle parts

More generally, a sales engineer is also versed in:

• achieve sales targets
• advise customers on motor vehicles
• apply health and safety standards
• apply territory planning
• build business relationships
• consumer protection
• ensure compliance with warranty contracts
• implement marketing strategies
• maintain customer records
• provide customer follow-up services

It also helps to know the following:

• car controls
• carry out repair of vehicles
• e-procurement
• parts pricing
• purchase automotive equipment
• apply technical communication skills
• drive vehicles
• electrical wiring plans
• interpret electrical diagrams
• inventory management rules
• maximise sales revenues
• organise storage facilities
• perform road testing of vehicles
• show confidence
• supply chain principles
• teamwork principles
• think proactively
• types of vehicles
• use communication techniques