Parts for your 2006 Toyota Aurion-Transmission filter

2006 Toyota Aurion transmission filter — what it does and when to service it

Based on Toyota’s technical literature for the Aurion GSV40 series (which runs the U660E 6‑speed automatic) and the Toyota Electronic Parts Catalogue, this model does use an internal automatic transaxle oil strainer—commonly called a transmission filter. It’s mounted above the sump pan. Toyota’s repair manual treats it as a serviceable part, but not a routine replacement item, it’s typically inspected or replaced when the pan is off for other work or during overhaul.

On the 2006 Aurion, the transmission filter’s job is to catch clutch material and fine metallic particles so they don’t end up clogging shift solenoids or the valve body. Working alongside Toyota ATF WS fluid in a “sealed” setup (no dipstick), the filter helps keep shifts clean and consistent, especially under Aussie and Kiwi stop‑start or highway conditions.

For regular servicing, most workshops focus on fluid condition first. Toyota’s schedule doesn’t call for a periodic filter swap, and WS fluid is listed as “lifetime” under normal use. In the real world, many local technicians recommend a drain‑and‑fill with WS every 60,000–80,000 kilometres or 4–5 years to keep the fluid fresh. The filter is usually replaced if there’s evidence of contamination, shift issues, or when the pan is already off—for example, to reseal the pan (Toyota uses FIPG sealant instead of a cork gasket) or to clean the magnets.

Replacing the filter involves draining the fluid, removing the undercovers, pulling the sealed pan, cleaning the magnets, swapping the strainer, then resealing the pan with the correct FIPG. Refill is done with Toyota ATF WS only, and level setting is via the overflow plug at a specific fluid temperature (around 40°C), ideally monitored with a scan tool. Getting the level wrong can cause flare, harsh shifts, or delayed engagement, so it’s a job best left to a competent auto trans specialist if the tools aren’t on hand.

If the Aurion shows any of the following, it’s worth planning a fluid service and filter inspection:

• Harsh or flaring shifts, delayed engagement, or shudder under light throttle
• Burnt‑smelling or very dark fluid, or notable debris on the pan magnets
• After overheating, water ingress, or major transmission work

Bottom line: the 2006 Toyota Aurion does have a transmission filter, but it’s not a routine change item. Keep the WS fluid healthy, and consider a filter replacement when there’s a solid reason or when the pan is already off.

Popular questions about the 2006 Toyota Aurion transmission filter

Does the 2006 Aurion have a transmission filter and is it serviceable?
Yes. The U660E automatic uses an internal oil strainer above the sump pan. It’s serviceable when the pan is removed, but Toyota doesn’t list it as a scheduled replacement—most shops replace it if contamination is found or during overhaul.

How often should the transmission fluid and filter be changed?
Toyota doesn’t specify a filter change interval and lists WS fluid as “lifetime” under normal conditions. Many Australian and New Zealand workshops suggest a drain‑and‑fill of WS every 60,000–80,000 km or 4–5 years, with the filter replaced around 150,000–200,000 km if the pan’s off, or sooner if there are shift issues or debris.

What fluid does it use and how is the level set?
Use Toyota ATF WS only. The level is set via the overflow plug at a specified fluid temperature (about 40°C). A scan tool or suitable temperature method is recommended to avoid over‑ or under‑filling.