Parts for your 2010 Toyota Mark x-Transmission filter

2010 Toyota Mark X transmission filter — what it is and how to look after it

Technical sources confirm the 2010 Toyota Mark X (GRX130 series, 2.5L and 3.5L RWD) does use a transmission filter. Toyota’s Electronic Parts Catalogue for the GRX130 lists an “Automatic Transmission Oil Strainer,” and the Toyota Repair Manual procedures for the A960E/A760E automatics include “Automatic Transmission Oil Pan and Oil Strainer — Removal/Installation,” along with ATF WS level checks via the overflow plug. Aisin service literature for the A960E/A760E likewise shows a serviceable internal strainer located above the pan. So yes — a transmission filter (strainer) is relevant and fitted on this model.

On the 2010 Toyota Mark X, the transmission filter (often called the oil strainer) quietly keeps the Aisin 6‑speed auto happy by catching clutch material, fine metal, and other debris before it can block the valve body or solenoids. The pan magnets collect ferrous particles, while the strainer deals with the rest, helping the transmission hold correct hydraulic pressure and shift smoothly under all sorts of Aussie and Kiwi driving.

Because this box is “sealed” (no dipstick), servicing is a bit different to the old-school autos. The filter sits inside the pan, so replacing it means removing the pan, cleaning the magnets, fitting a new gasket/sealant, and installing a fresh strainer. Toyota’s WS fluid is mandatory, it’s low‑viscosity and blended specifically for these units. Level is set through the overflow plug at a defined fluid temperature (typically around 40°C per the workshop manual), so a scan tool or an accurate temp method is key. Too much or too little fluid can cause shudder, flare, or overheating.

Good times to replace the strainer and refresh the WS fluid include:

• Every 60,000–100,000 km, or 4–6 years, especially with towing, hilly commutes, or hot climates
• Whenever the pan’s off for leaks or other work
• If fluid is dark, smells burnt, or there’s excessive debris on the magnets

Common clues the filter’s overdue: delayed engagement into Drive/Reverse, harsh or flaring shifts, or transmission over‑temperature warnings. A tidy pan drop service — new strainer, fresh gasket, magnets cleaned, WS fluid renewed and levelled hot via the overflow — keeps the Mark X shifting crisply and extends the life of the valve body and clutches.

There’s no external, spin‑on filter on this car — it’s all inside the pan — so plan the job with proper tools and specs, or hand it to a workshop that knows Toyota’s WS procedure.

Popular questions about 2010 Toyota Mark X transmission filters

Does the 2010 Mark X actually have a transmission filter?
Yes. It uses an internal automatic transmission oil strainer above the pan in its Aisin 6‑speed. There’s no external, spin‑on filter, the pan needs to come off to service it.

How often should the transmission filter and fluid be changed?
Toyota often labels WS fluid “lifetime” under ideal conditions, but in Australian and New Zealand use many workshops recommend a pan‑drop service every 60,000–100,000 km. Replace the strainer when the pan’s off, use Toyota ATF WS, and set the level via the overflow at the specified temperature.

What fluid does it use and how much will I need?
Use Toyota ATF WS only (or an approved equivalent). A typical pan‑drop replaces roughly 3–4 litres, a full overhaul needs more. Always measure what drains out and follow the workshop manual for the correct refill and hot‑level procedure.