Parts for your 2015 Subaru Forester-Brake wheel cylinders

2015 Subaru Forester brake wheel cylinders — are they used?

Short answer: brake wheel cylinders are not fitted to the 2015 Subaru Forester. This model (SJ series) runs disc brakes front and rear for the service brakes, which use calipers rather than wheel cylinders. That setup is confirmed in the Subaru 2015MY Forester Service Manual (Brake section) and the Subaru parts catalogue, both of which list front and rear disc calipers and no hydraulic wheel cylinders. Major aftermarket catalogues in Australia and New Zealand (e.g., Bendix, DBA, and local parts listings) also show pads, rotors and calipers for all corners, with no wheel cylinder listings for this vehicle.

Why no wheel cylinders? Wheel cylinders are a drum-brake component that push brake shoes out against a drum. The Forester’s hydraulic braking is all disc-based, so hydraulic pressure acts on caliper pistons instead. At the rear, the Forester uses a “drum-in-hat” handbrake that’s mechanically actuated inside the rear disc rotor. That park brake uses an internal lever/expander with small shoes, not a hydraulic wheel cylinder.

If someone’s hunting for “brake wheel cylinders” for a 2015 Forester, they usually need one of these instead:

• Rear or front brake caliper service or replacement (seals, slide pins, boots, or full caliper)
• Brake pads and rotors
• Parking brake shoes and hardware inside the rear disc “hat”
• Brake fluid flush (DOT 3/4 as specified)

Good servicing practice for Aussie and Kiwi Foresters is to inspect pads and rotors at each service, clean and lube caliper slide pins, check for sticking pistons or uneven pad wear, and flush brake fluid every 2 years or around 40,000 km. The park brake shoes should be checked for lining thickness and glazed spots, the hardware should move freely, and the cable/adjuster should be set so the lever travel is correct without dragging. If the rear wheel area is damp with brake fluid, that points to a caliper seal issue rather than a wheel cylinder on this model.

Popular questions about 2015 Subaru Forester brake wheel cylinders

Does a 2015 Subaru Forester have brake wheel cylinders?
No. The 2015 Forester has four-wheel disc brakes with hydraulic calipers. Only drum brakes use wheel cylinders. The rear handbrake is a small mechanical drum inside the rear disc, so there’s still no hydraulic wheel cylinder involved.

What should be replaced instead of wheel cylinders on a 2015 Forester?
If there’s a leak or poor braking, it’s typically a caliper seal, a seized slide pin, worn pads/rotors, or old brake fluid. For handbrake issues, look at the park brake shoes, springs and adjuster inside the rear disc “hat”.

How often should the braking system be serviced?
Check pads, rotors and caliper operation at each service. Flush brake fluid every 2 years or about 40,000 km. Inspect and adjust the park brake when the rear rotors are off or if the lever travel grows long.