Parts for your 2009 Honda Elysion-Brake master cylinder

2009 Honda Elysion Brake Master Cylinder

Yes, the 2009 Honda Elysion is fitted with a brake master cylinder. Technical sources including the Honda Elysion (RR1–RR5) factory service manual (Brake System section) and Honda’s Electronic Parts Catalogue list a tandem brake master cylinder mounted to the brake booster, feeding the ABS modulator via two hydraulic circuits. That makes the brake-master-cylinder absolutely relevant for servicing and parts replacement on this model.

On the Elysion, the master cylinder’s job is to turn the driver’s pedal effort into hydraulic pressure and split it safely across two circuits, so there’s still braking if one circuit has a fault. The reservoir on top supplies fluid to the cylinder and the ABS modulator, and it typically runs Honda-approved DOT 3 brake fluid (DOT 4 of the correct spec is commonly used in AU/NZ too—always follow the cap and the owner’s manual).

As part of routine servicing, fluid should be flushed every 2–3 years to keep moisture and corrosion at bay. When bleeding, use the service manual sequence (usually RR, LR, RF, LF) and don’t let the reservoir run dry—introducing air into the ABS modulator is a pain to clear. Many Elysion ABS systems can be bled without a scan tool if the system hasn’t run dry, but a proper service tool makes it easier if air has entered the modulator.

Common signs the master cylinder is on the way out include a sinking or spongy pedal at steady pressure, visible leaks where the cylinder meets the booster, or persistent soft pedal even after a correct bleed. Low fluid in the reservoir or wetness around the lines and grommets are clues worth chasing.

If replacement’s on the cards, bench-bleed the new cylinder before fitting, replace the reservoir grommets and sealing washers, and torque the flare nuts correctly to avoid leaks. Protect paintwork—brake fluid is nasty on clear coat—and check the brake booster for any fluid contamination while you’re in there. After installation, bleed the system in sequence, confirm pedal feel, and road-test in a safe area. Sticking with quality parts and fresh fluid keeps the Elysion’s brake pedal firm and confidence high.

• Fluid spec: Honda-approved DOT 3 (DOT 4 acceptable if specified on the cap/manual)
• Service interval: Brake fluid flush every 2–3 years under AU/NZ conditions
• Bleed order: Typically RR, LR, RF, LF (check the service manual)

Popular questions

What brake fluid should go in a 2009 Honda Elysion?
Honda specifies DOT 3 for many models of this era, and DOT 4 that meets the correct standards is commonly used in AU/NZ. The safest move is to match what’s printed on the reservoir cap and in the owner’s manual. Mixing brands is fine if they’re the same spec, but avoid mixing DOT 5 silicone with glycol-based fluids.

How can someone tell if the brake master cylinder is failing?
Look for a soft or sinking pedal when holding steady pressure, fluid weeping at the master cylinder or along the lines, and a pedal that won’t firm up even after a correct bleed. If there’s fluid inside the brake booster or unexplained loss from the reservoir, the internal seals may be worn.

Does bleeding the Elysion’s brakes require a scan tool?
If the system hasn’t run completely dry, a conventional bleed following the correct sequence usually does the trick. If air has entered the ABS modulator, using a scan tool to run the ABS bleed function can speed things up and ensure a solid pedal.