You might be inspecting the tires on your DB9 occasionally or as part of your Annual Service. Aston Martin wants us to check more than just the tire pressures, and I think that’s a good idea. We depend on these tires to keep us safe.
The DB9 is equipped with a Tire Pressure Monitoring System (TPMS) that includes Tire Pressure Sensors (TPS) mounted to each wheel. They are an integral part of the air valve. You’ll notice that each of your air valves has a colored ring around it, either Red, Green, Blue or Yellow. In your trunk / boot is a mysterious little box with LEDs. This is the TPMS indicator panel, and if you ever get a warning indication on the dash, you’ll need to check the LED’s and see which color is lit, and that’s the tire with the issue.
Measuring the tire tread depths on your DB9 is part of every annual service. This isn’t a sexy topic, but it is a very useful one if done correctly. By measuring and reviewing the data properly, you can actually spot issues with your suspension, tire pressures and wheel balance.
You’ve likely had the Front Inner Wheel Well Arch Liner out on your DB9 to do some service task, most likely Changing the Air Filter as part of your annual service.
You may need to bleed the brakes on your DB9 for several reasons like replacing a caliper, a cracked hose, or as part of changing the brake fluid every year with the annual service (which is what I am doing).
Brake fluid is hygroscopic – which means it absorbs water, even out of the air. The potential for water in the brake lines is bad mojo, so Aston Martin requires that all the brake fluid is changed as part of every annual service. Continue reading “Bleeding the Brakes on an Aston Martin DB9”→
In the first post I explained how to drain the oil
This is the second part of my post on Changing the Rear Differential / Transaxle Fluid and Filter on a DB9. You should really check out my previous post and video on draining the rear differential fluid first as this is a continuation of that process (you can find it here).
One item that pops up on the DB9 Annual Service requirement periodically is changing the rear differential / transaxle fluid. To be clear this is NOT the transmission fluid (which in theory never needs changed). I am covering only the process of draining the fluid in this post, and will cover changing/cleaning the filter and refilling the oil in the next post [I just don’t want the post to be too long].
Removing the rear under tray on your DB9 might be needed for several service items. The most likely is needing access to change the rear differential fluid as part of an annual service.
The good news it that it’s pretty easy and only takes a couple of minutes once you have the vehicle off the ground. I don’t have a service lift or hoist, so I make due with a jack and stands. Check out my other posts on:
The DB9 comes with a beautiful set of OEM aluminum alloy wheels. They are a 10 spoke unit made by Speedline. 8.5×19 upfront and 9.5×19 in the rear.
During normal washing of the car it’s easy to get the face of the wheel clean, but more difficult to get the large surfaces behind the spokes. Sure, you can use a wheel brush and do your best, but they are never perfect.
Dirty Inner Rim
Whenever I have a wheel off the car (for example during an annual service), I take the opportunity to clean both the inside and outside of the rims much more thoroughly.