Checking the Automatic Transmission Fluid Level in an Aston Martin DB9

In this video I will show you how to properly Check and then Set the automatic transmission fluid level in a 2005 Aston Martin DB9 Coupe equipped with a 6-speed Touchtronic II transmission. Most DB9's built between 2004 and 2014 have this transmission (unless equipped with a manual stick shift).

You may need to check and set the fluid level if you've had some form of leak in the system that you've now repaired, or perhaps you've just completed a full service draining all the fluid and changing the seals (see my other videos on that).

The transmission is really a ZF model 6HP26. This transmission requires service every 50-75K miles OR 8 years at the most. Aston Martin didn't make this easy.

The whole process will take you about 2 hours to do yourself in your garage at home.

If you've just completed the full service to your transmission (replacing all the fluids and seals), this is really the final video in that process. You can just jump straight into the video at the 13:23 mark to pickup where we left off in the Part 3 video.

In this video I cover what parts you might need, the tools to complete the task, the prerequisite steps to get ready, getting access to the Fill Plug, the official Aston and ZF procedures for bulk refilling the fluid, and the fairly involved steps necessary to do the final level check and set. If you want to jump to a specific section:

0:00 Introduction
2:16 - Parts you'll need
3:51 - Tools and Supplies needed
8:02 - Prerequisite Steps
9:09 - Removing the Subframe Crossmember
10:05 - Removing the Exhaust Heat Shield
12:00 - Accessing the Fill Plug
13:23 - Get your tools where you'll need them
14:05 - An explanation of the two phases of the process
14:21 - Safety First
15:49 - Bulk Refilling the Fluid after Service
21:20 - Explanation of the final level checking process
26:49 - Performing the final level check and set
29:49 - A great tip to make the whole process easier
30:37 - Installing the Fill Plug
32:23 - Advice on Cleaning Up
34:19 - Installing the Exhaust Heat Shield
37:14 - Installing the Subframe Crossmember
39:21 - Bonus Behind the Scenes Footage

You can find more details about the process over on my companion blog article at https://aston1936.com/2020/10/06/chan.... There you will find links to the parts, tools, and the official ZF service guide. I highly recommend you check out the article.