New Haynes Manual for 320i all 4 cyl models '75 thru '83.  Covers BMW 320i, 4-Cylinder, 121.4 cu in (2.0 liter) & 107.7 cu in (1.8 liter) 1975-1983.  If you are a do-it-yourself person, this is a MUST have. Also, great to learn more about your car. This is a great reference manual and will help get you through those head scratching experiences.