BMW S55 TVDIEHFCVNovember 11, 2014E/E, Powertrain The combination of exhaust turbocharger, Valvetronic and direct fuel injection is known as Turbo Valvetronic Direct Injection (TVDI). Digital Engine Electronics (DME) Previous Post Corvette Body Assembly Process – Aluminum Frame Next Post ZF AKC Track Rod Rear Axle Steering Leave a ReplyCancel ReplyYou must be logged in to post a comment.