Changing the Automatic Transmission Fluid in an Aston Martin DB9

In this video series I will show you how to change the automatic transmission fluid and seals 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).

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. Their approach was 'filled for life' assuming that most DB9 owners don't use their cars much. No fluids last for ever, and since ZF makes it for Aston, you can be sure it needs done every 8 years.

There is a right way and wrong way to do it. Just pulling the drain plug and refilling it is probably the wrong way. Doing the entire procedure is the right way, and I'll explain why and show you the difference in this video.

The whole process will take you about 4 hours to do yourself in your garage at home. You will probably spend about $400 on the parts that are needed to do it right.

This is the first video in the four part series where I show you how to do it all in detail from start to finish. In this video I cover the need for the service, the parts you'll need to get, the tools you need to have on hand and start the process off by getting the vehicle off the ground and access to the transmission. If you want to jump to a specific section:

0:00 - Introduction
2:47 - Parts Needed
9:06 - Tools Needed
17:26 - Prerequisite Steps
18:19 - Tour of the Transmission

In part 2 I will show you how to properly drain the fluids and remove all the seals.

In part 3 I will show you how to reassemble it installing new seals and beginning to refill it

And finally in part 4 I show you how to properly check and set the final fluid levels so you can get your baby back on the road.

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.