Teardown video shows a broken Volkswagen ID.4 front drive unit. A simple sealing ring seems to be the cause of the failure. Compared to combustion engines, electric drive motors are shockingly simple. Case in point: the front drive unit of the Volkswagen ID.4 and Audi Q4 E-Tron you see in the video embedded below. It’s a very compact unit that integrates the motor, transmission and inverter. However, there is a problem with this particular one: it’s dead. By the looks of it, a bad sealing ring allowed coolant to go where it wasn’t supposed to go, killing the entire unit. In the video, YouTuber I Do Cars , who is well-known for taking apart combustion engines, tries his best to take the front drive unit apart to see what went
