Parts for your 2019 Mitsubishi Asx-Brake wheel cylinders

2019 Mitsubishi ASX brake wheel cylinders — what they do and how to look after them

Based on technical sources used in the trade—Mitsubishi’s ASX/RVR service manual (Brake Group, 2019MY), the Mitsubishi ASA electronic parts catalogue for AU/NZ models, and common aftermarket catalogues used by workshops—2019 Australian and New Zealand–market ASX models run rear drum brakes that use brake wheel cylinders. Some overseas variants with rear disc brakes won’t have wheel cylinders, but for local 2019 ASX trims the part is very much present and serviceable.

On the 2019 Mitsubishi ASX, the brake wheel cylinders sit inside each rear drum and convert hydraulic pressure into outward movement of the brake shoes. When the driver presses the pedal, fluid pressure pushes the wheel cylinder pistons, forcing the shoes against the drum to slow the vehicle. Simple, reliable, and effective—so long as the seals and bores stay healthy and dry.

As part of routine servicing, it’s smart to inspect the rear drums every 20,000 km or 12 months. A tech should check the wheel cylinder dust boots for dampness, the backing plate for tell-tale tracks of brake fluid, and the shoe linings for contamination. If there’s any sign of leakage or sticking pistons, replacement is the go. Wheel cylinders are affordable, but they must be fitted in axle pairs to keep brake balance even.

When replacing wheel cylinders on a 2019 ASX, a workshop will typically:

• Remove the drum and shoes, inspect the adjuster and springs, and clean out dust safely.
• Replace both rear wheel cylinders, then refit or renew shoes if they’re soaked or worn.
• Bleed the hydraulic system with the brake fluid grade specified by Mitsubishi (check the cap/manual), and verify pedal feel.
• Adjust the shoes, confirm handbrake travel, and road test for straight, confident stops.

A few signs that nudge an ASX owner to book in: a soft or sinking pedal, the car pulling to one side when braking, low brake fluid in the reservoir, or moisture around the drum/backing plate. Because leaked fluid can soak into the linings, expect new shoes if a cylinder has been weeping for a while. Keep the brake fluid fresh (typically every two years, or as per the logbook), and those wheel cylinders will do their job quietly in the background.

Popular questions about 2019 Mitsubishi ASX brake wheel cylinders

Does the 2019 Mitsubishi ASX have rear drum brakes with wheel cylinders?
Yes, Australian and New Zealand 2019 ASX models are fitted with rear drum brakes that use wheel cylinders. Some overseas trims run rear discs instead, which don’t use wheel cylinders, but that’s not typical for AU/NZ 2019 cars.

How often should the wheel cylinders be serviced or replaced?
Have them inspected every 20,000 km or 12 months during a brake check. Replace them if they’re leaking, seized, or pitted, and always in axle pairs. Brake fluid should be replaced at the interval in the service book (often two years), which helps protect the cylinders from internal corrosion.

What are the signs a wheel cylinder is failing on an ASX?
Look for a soft or spongy pedal, the vehicle pulling when braking, fluid streaks on the backing plate, or a drop in brake fluid level. If the drum interior or shoes are wet with brake fluid, the cylinder has likely failed and the shoes will usually need replacing as well.