Parts for your 2016 Toyota Mark x-Transmission filter

2016 Toyota Mark X transmission filter — what it is and when to service it

Technical sources confirm the 2016 Toyota Mark X is fitted with a transmission filter. Toyota’s GRX130/GRX133 Repair Manual for the Aisin 6‑speed automatic (A760E/A960E family), the Toyota Electronic Parts Catalogue (listing an “Oil Strainer, Automatic Transmission”), and Aisin service literature all describe an internal, pan‑mounted filter/strainer used with Toyota WS fluid. It’s not an external spin‑on, it sits inside the sump and is accessed by removing the transmission pan.

The filter’s job is straightforward: catch clutch material and fine wear debris so the valve body, solenoids, and torque converter get clean oil. Keeping the strainer in good nick helps maintain crisp shifts, protects hydraulic circuits, and reduces the chance of harsh engagement or flare on upshifts. Even though Toyota labels these units as “sealed” with no dipstick, they still rely on clean fluid flow through that internal strainer.

Toyota service information doesn’t prescribe a routine filter change interval, the strainer is generally replaced when the pan is off, during repair, or if contamination is found. That said, many Aussie and Kiwi workshops recommend a preventative pan service at around 80,000–120,000 km (or 6–8 years), especially if the car tows, sees frequent city heat, or has unknown history. This is a practical window to fit a new strainer and gasket.

• What a proper service looks like:
  1. Drain a few litres of WS fluid and remove the pan.
  2. Clean pan and magnets, inspect for excessive metal or sludge.
  3. Replace the internal strainer and pan gasket/seal.
  4. Refill with Toyota ATF WS and set level via the overflow plug at the specified fluid temperature (typically around 40°C), per the repair manual procedure.

Signs that point to a restricted filter or tired fluid include delayed engagement, shudder on light throttle, inconsistent shift timing, or dark/burnt‑smelling ATF. Catching those early and refreshing the fluid and strainer can restore smoothness and extend gearbox life.

Because variants differ by engine (4GR‑FSE or 2GR‑FSE) and market spec, it’s smart to confirm by VIN and follow the GRX130‑series repair manual steps, use WS‑spec fluid, and torque fasteners correctly. Done right, the Mark X’s Aisin six‑speed is a tough unit that repays clean oil and a fresh strainer with years of easy motoring.

Popular questions

Does the 2016 Toyota Mark X actually have a transmission filter?
Yes. It uses an internal oil strainer inside the transmission pan on the Aisin 6‑speed. Toyota’s GRX130/GRX133 Repair Manual and the Toyota EPC both identify this component. It isn’t a spin‑on filter, the pan must be removed to access it.

When should the transmission filter be replaced?
Toyota doesn’t set a fixed interval and typically replaces the strainer during repairs or if contamination is present. Many local workshops choose to replace it preventatively when the pan is off around 80,000–120,000 km, alongside a WS fluid service and magnet clean, especially for vehicles that tow or drive in heavy traffic.

What fluid does it take and how much is needed?
Use Toyota ATF WS only. A simple drain and fill usually returns about 3–4 litres, the total capacity is higher, typically 6–8 litres depending on variant. After refilling, level must be set by temperature using the overflow plug procedure specified in the repair manual.