Astra | Haynes Manuals Complete coverage for your vehicle. Written from hands-on experience gained from the complete strip-down and rebuild of a Opel Astra, Haynes can help you understand, care for and repair your Opel Astra. Print & Online Opel Car Repair Manuals - Haynes Publishing Come the 1970s, GM unified the Opel and Vauxhall product lines to keep down costs, which has continued ever since. At Haynes, we have an extensive range of Vauxhall repair manuals and online procedures available for professional mechanics and DIY car enthusiasts alike. We can give you all the guidance you need.