Why Infiniti’s ATTESA E-TS is the Most Underrated AWD System

Ever wondered if the Infiniti 7-speed automatic is actually "bulletproof" or a ticking time bomb? In this video, I go inside the transmission and transfer case to explain in detail the legendary ATTESA E-TS AWD system and perform a complete teardown of the Jatco RE7R01A (JR710E/JR711E) 7 speed automatic transmission to see what’s inside, how it works and just why it failed! Infiniti’s Rear-Wheel-Drive biased AWD system is what gives the G and Q series and other SUV's on the FM platform their sporty DNA—but how does it actually transfer power? I'll break down the transfer case logic and electromagnetic clutch engagement to show how it works, with its ball ramp style system. Following that, I pull apart the FAILED RE7 7-speed transmission to inspect the valve body, the integrated TCM (Transmission Control Module), and the clutch packs. Whether you’re dealing with a P0720 code, harsh shifts, or just want to see the engineering behind the VR30 and VQ37 drivetrains that use this tranny, this is the ultimate technical guide. 🔧 Key Topics Covered: Infiniti AWD Logic and hardware: Why it stays RWD until you lose traction. The RE7R01A/JR710E: A look at the Jatco 7-speed used in the G37, Q50, Q60, and QX series. Common Issues: Why the "speed sensor" error often means a total TCM replacement, and just how burnt up the clutches can get! Performance: How much torque do you think these internals actually handle? Chapters: 0:00 Touring around the RE7 transmission and transfer case 0:46 Removing the transfer case 1:19 Grinding the gears (or in this case, the chain!) 3:12 The Clutch that engages it all 6:53 Transmission Teardown 14:14 How a planetary gearset works 15:30 TCM and Valve Body disassembly 17:30 The End: Are these transmissions worth it? This is the Camera I use: https://amzn.to/3oaRcZX (US) https://amzn.to/3KWQ2uU (Canada) speedkar9 on Instagram and Tiktok https://www.instagram.com/speedkar9/ https://www.tiktok.com/@speedkar9 speedkar99 on Facebook and Linkedin: https://www.facebook.com/speedkar9/ https://www.linkedin.com/company/speedkar99/ Subscribe for more videos just like this: https://www.youtube.com/subscription_center?add_user=speedkar99