• 01 Complete engine, crankcase ventilation, cylinder head, crankcase27
• 03 Crank assembly12
• 05 Engine timing15
• 06 Fuel cell system68
• 07 Mixture formation166
• 08 Electric drive, hybrid drive99
• 09 Air intake, turbocharging40
• 13 Air compressor, belt drives5
• 14 Exhaust manifold, engine brake, emission control system9
• 15 Electrical system - engine26
• 18 Engine lubrication, engine oil cooling16
• 20 Engine cooling system103
• 22 Major assembly suspension31
• 30 Throttle control, speed control systems39
• 47 Fuel system, powertrain energy supply103
• 49 Exhaust system, exhaust gas cleaning11