Opel Astra Workshop and Owners Manual | Free Download Opel Astra. Opel Astra was a small family car from Opel, the British subsidiary of Adam Opel AG. Since its release in 1979, it has evolved into six derivatives. Astra is a strong seller in UK, and second most popular family car in Britain. It has been also popular as a racing car, particularly in touring car racing. OPEL ASTRA MANUAL Pdf Download. - ManualsLib - Makes it View and Download Opel ASTRA manual online. Infotainment System. ASTRA Car Video System pdf manual download.