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About Us

Mobile Engine Repairs Nationwide


DIAGTEST are a North East based mobile repair service with fully trained Technicians providing comprehensive solutions for our customers, large or small we can tailor our services to meet your business and operational needs and we are proud to offer specialist auto electrical service and diagnostics.

Bus Engine Bus Engine Bus Engine

DIAGTEST are at the forefront of Bus & Coach technology and provides support services nationwide from the North East of England. Our success is driven by our commitment to be at the forefront of the latest technologies—by operating responsibly, executing with excellence, applying innovative technologies and capturing new opportunities for profitable growth.

We are involved in virtually every fact of the bus repair industry and as we believe in continuous improvement we always explore development technology, at present Euro 6 and Hybrid systems.

Our staff are trained in order to maintain up to date systems from various vehicle, engine and gearbox manufacturers like (Scania, Optare, Volvo, Allison, ZF, Voith, ADL, Bosch, Mercedes and Wabco).

DIAGTEST is a NE based service provider of specialist Auto electrical diagnostics and modifications to the bus & coach industry. Our fully trained technicians offer a comprehensive solution to sophisticated problems including intermittent faults, bespoke wiring or general repairs.

Environment and Safety

As a company and as individuals, we take great pride in working alongside our customers acording to our Health, Safety and Environment Policy.

We also care about the environment and are proud of the many ways in which we work to safeguard it.