How Engines Are Made | Casting, Machining & Assembly

Watch engine components take shape through casting, machining, measurement and assembly inside BMW, Renault–Dacia and Mercedes-AMG production lines.

This 18-minute Car Factory documentary connects the visible operations with English technical explanations and original factory sound. See how sand cores form internal passages, how machining prepares functional surfaces, and how bearings, crankshafts, pistons, cylinder heads and turbochargers come together.

The film brings together different engine designs and production lines, using archival footage newly edited and explained by Gommeblog. No voiceover.