Theunis van der Merwe is a qualified Diesel Mechanic with years of experience in commercial vehicles, heavy equipment, and marine engineering. He specializes in diagnostics, fault finding, engine rebuilding, and technical problem-solving, with expertise across major diesel engine brands including Cummins, Caterpillar, and Detroit Diesel. Known for his strong work ethic, attention to detail, and commitment to customer service, Theunis has built a reputation for delivering reliable solutions and maintaining high professional standards throughout his career.
As Warranty Manager at R Marine Crawley, Theunis brings a wealth of technical expertise, practical problem-solving ability, and a customer-first approach that directly supports the premium ownership experience expected by Riviera owners. His extensive background in diesel mechanics, marine engineering, diagnostics, and repair management enables him to efficiently resolve warranty matters, minimize vessel downtime, and ensure every claim is handled accurately and professionally. By bridging the gap between customers, service teams, and manufacturers, Theunis plays a key role in maintaining customer confidence, protecting brand reputation, and upholding the high standards of service that R Marine Crawley is known for.