Parts for your 2013 Mitsubishi Lancer-Transmission filter

2013 Mitsubishi Lancer transmission filter — what’s actually fitted and how to look after it

Referencing the Mitsubishi Motors Workshop Manual for the CJ/CF Lancer (Group 23A – CVT, Group 22C – TC‑SST), the Mitsubishi ASA parts catalogue, and Jatco’s JF011E technical documentation, a transmission filter is relevant on most 2013 Lancer automatics. The CVT models use a serviceable cooler‑return filter and an internal strainer, and the Ralliart’s TC‑SST twin‑clutch unit has a serviceable external filter. The 5‑speed manual gearbox does not use a transmission filter.

Where a filter is fitted, its job is straightforward: keep wear particles out of precision hydraulics. In the Lancer’s CVT, the cooler‑return filter and internal strainer catch belt/pulley fines and clutch material before they can score the pump, jam solenoids, or upset pressure control. In the Ralliart’s TC‑SST, the high‑flow external cartridge protects mechatronics and clutch circuits from debris generated in normal operation. Unlike old‑school autos, there’s no big replaceable pan filter on these units, it’s a dedicated in‑line/canister filter (and an internal screen on the CVT) designed for clean, consistent flow.

For Aussie and Kiwi conditions, it’s smart practice to replace the filter whenever the transmission fluid is serviced. For CVT models, that typically means at 60,000–90,000 km depending on use, sooner if there’s towing, lots of hills, or city heat. For the TC‑SST, many workshops schedule fluid and filter service between 45,000 and 60,000 km. Always use the correct factory‑spec fluid (CVT: DiaQueen CVT‑J4 or equivalent meeting the exact spec, TC‑SST: DiaQueen SSTF‑1) and new O‑rings/seals.

A proper service usually includes: draining the fluid, replacing the CVT cooler‑return filter or the SST external filter, inspecting the internal CVT strainer when the pan is off for repairs, refilling with the specified fluid, checking for leaks, then performing the required electronic procedures (for CVT, reset the fluid deterioration value and perform learning with a scan tool, for TC‑SST, run clutch/gear adaptation). Following the workshop manual torque specs and cleanliness rules is non‑negotiable—any grit in a CVT or SST is bad news.

• Common signs a filter is overdue: CVT judder or flare, a light whine, overheating messages, harsh or delayed engagement, or limp mode.
• Manual Lancer owners: no filter is fitted or required—just stick to regular gear oil changes with the correct GL rating.

Popular questions about 2013 Mitsubishi Lancer transmission filters

Does a 2013 Lancer have a transmission filter?
It depends on the gearbox. CVT and TC‑SST models do have serviceable transmission filters (and the CVT also has an internal strainer). The 5‑speed manual has no filter at all.

How often should the transmission filter be replaced?
A practical interval in Australia and New Zealand is to replace the CVT cooler‑return filter whenever the fluid is changed—about 60,000–90,000 km, earlier with towing or heavy city work. For TC‑SST, most workshops service fluid and filter at roughly 45,000–60,000 km.

What fluid should be used with the new filter?
Use the exact factory‑specified fluid: DiaQueen CVT‑J4 (or a product that explicitly meets that spec) for CVT, and DiaQueen SSTF‑1 for TC‑SST. Using the wrong fluid can cause shudder, overheating, and premature wear, even with a new filter.