Unit 1 General Introduction to the Structure of Motor vehicle Unit 2 Engine Construction and Operation Principle Unit 4 Engine Cooling and Lubrication System Unit 5 Engine Ignition System and Starting System Unit 6 Automobile Emission Control Unit 7 Introduction to Key Sensors Unit 8 Anti-lock Brake System Unit 9 Wheel Computer—aligne Unit 10 Car Wash Unit 11 Automotive Checking and Repairing 課文譯文