Wow, that title sounds cool! Mech-a-tronics unit. Most of the Aston Martin DB9’s, DBS and Rapides built between 2004 and 2014 were fitted with a Touchtronic II 6-speed automatic transmission. I’ve written elsewhere that this transmission is really a ZF model 6HP26 fitted to many other cars of the era including Rolls Royce, Bentley, Jaguar and BMW. It’s a terrific transmission. The transmission features ‘Shift By Wire’, meaning there are no levers or cables doing the shifting. A computer inside the transmission is controlling a bunch of electronic solenoid valves that control the fluid flows that manage the shifting. A mechanical electronic unit – Mechatronic.
If you are doing a full fluid, filter and seal change to your transmission you’ll end up needing to remove the Mechatronic Unit to drain it and to get to the bits underneath it. I’ve done a full series of articles and videos on this process and you can check out the main article here to learn more.
Let me show you how to properly remove the Mechatronic unit. Continue reading “Removing the Mechatronics Unit from the Automatic Transmission in an Aston Martin DB9”