Haynes Diy Workshop Manuals Available here. Maintaining your vehicle is easier with Haynes DIY workshop manuals. Designed to be easy to read, with clear diagrams and DIY procedures, these manuals provide you with all the information you need to keep your car running in top condition. You say you’re not an experienced mechanic? Not to worry. Haynes DIY workshop manuals are written with novices in mind, so that everyone who has the desire can maintain their vehicle like a professional. Just like our selection of vehicle parts, these manuals are covered by our 30 day no hassle return policy. Repairing your car by yourself has never been easier.