Parts for your 2007 Mitsubishi Lancer-Cluth slave cylinder

2007 Mitsubishi Lancer cluth-slave-cylinder — what’s fitted, what it does, and when to replace it

Referencing Mitsubishi’s workshop manuals and ASA parts catalogues, plus common AU/NZ parts listings (Repco, NAPA, and Haynes/Autodata), a 2007 Mitsubishi Lancer may or may not use a cluth-slave-cylinder depending on build series and transmission. The CH/CS Lancer (up to mid‑2007 in AU/NZ) with 5‑speed manual uses a cable-operated clutch, so there’s no cluth-slave-cylinder. The later CJ Lancer (launched in 2007 for MY08) with manual transmission, and the 2007 Evo X (CZ4A), use a hydraulic clutch with both a master cylinder and an external cluth-slave-cylinder mounted on the transaxle. Automatic and CVT models don’t use one.

Why the CH/CS doesn’t have a cluth-slave-cylinder: its clutch is actuated by a mechanical cable from the pedal to the release fork. No hydraulic circuit means no clutch fluid, no master, and no slave cylinder. This design was chosen for cost and simplicity at the time, wear items are the cable and pedal bushings rather than hydraulic seals and hoses.

For CJ and Evo X manuals where a cluth-slave-cylinder is fitted, its job is straightforward: when the driver presses the clutch pedal, the master cylinder pressurises brake fluid, which pushes the cluth-slave-cylinder piston to move the release fork and disengage the clutch. It gives a lighter, more consistent pedal feel than a cable and self-compensates for clutch wear.

Good servicing habits help these units last in Aussie and Kiwi conditions:

• Flush the clutch hydraulic fluid every 2 years (DOT 3 or DOT 4 as specified). Dark, gritty, or moisture‑laden fluid accelerates seal wear.
• Inspect for dampness around the rubber boot of the cluth-slave-cylinder, the hose fitting, and the master cylinder. Any weep suggests seal failure.
• Bleed the system properly after any work. Use a clear hose, keep the reservoir topped up, and avoid aeration. A pressure or vacuum bleeder saves time.
• At replacement, fit new copper washers on banjo fittings, check the flexible hose for cracks, and verify release fork movement is smooth.

Typical symptoms of a tired cluth-slave-cylinder include a low or spongy pedal, difficulty selecting gears, clutch drag at lights, and visible leaks. On a CJ Lancer, replacement is usually a straightforward job (about an hour in a workshop). Many techs recommend replacing the master cylinder at the same time on higher‑kilometre cars to avoid chasing intermittent pedal issues. After install, set pedal height/free play to spec and road‑test for clean engagement. Avoid spilling brake fluid on paint, and dispose of old fluid responsibly.

Popular questions about 2007 Mitsubishi Lancer cluth-slave-cylinder

Does my 2007 Lancer actually have a cluth-slave-cylinder?
It depends on the build. A CH/CS manual (common early 2007) uses a cable clutch, so no cluth-slave-cylinder. A late‑2007 CJ manual and the 2007 Evo X are hydraulic and do have one. Autos/CVTs don’t. Check your build plate (CH/CS vs CJ) or look for a small cylinder on the gearbox housing.

What fluid should be used in the cluth-slave-cylinder system?
Use the specified brake fluid (typically DOT 3 or DOT 4 for CJ/Evo X). Don’t mix types unless the spec allows, stick with a quality brand and keep it fresh with a 2‑year flush interval.

How do I know it’s the cluth-slave-cylinder and not the clutch itself?
Hydraulic issues often show as a soft/slow‑returning pedal and improvement after bleeding, plus visible leaks. A worn clutch plate usually slips under load with engine revs rising but road speed lagging. A workshop can pressure‑test and inspect to confirm.