I worked as a mechanic as soon as I left college and although cars a technology have moved on the basic principles remain the same.I worked for myself for many years and some of that owning and operating my own garage.before going back to self employed I worked for a internet car buying company as a transport manager , this included checking and diagnosing any problem and potential problem cars before they were offered for sale.I am now back to self employed repairing and diagnosing cars and motorcycles.I have three top diagnostic machines two for cars and one for motorcycles.