Parts for your 2000 Daihatsu Gran move-Brake master cylinder

2000 Daihatsu Gran Move brake master cylinder — purpose, service tips, and replacement advice

Yes, the 2000 Daihatsu Gran Move (also known as Pyzar in some markets) is fitted with a hydraulic tandem brake master cylinder. This is documented in the Daihatsu Pyzar/Gran Move G303/G313 workshop manual (Brake section), listed in the Daihatsu Electronic Parts Catalogue for the 1996–2002 model run, and supported by aftermarket catalogues from brands like Aisin, Nissin/Nabco, TRW, and Bendix that supply direct-fit master cylinder assemblies for this vehicle.

The brake master cylinder is the heart of the Gran Move’s braking hydraulics. When the driver presses the pedal, it converts that effort into hydraulic pressure and feeds two separate circuits (front and rear) for safety redundancy. Mounted to the brake booster and topped with a fluid reservoir, it uses internal primary and secondary pistons with seals to keep pressure stable. On ABS-equipped versions, it works upstream of the modulator, so clean, moisture-free fluid is vital for reliable ABS operation.

For regular servicing, brake fluid should be replaced every 24 months or about 40,000 km, using the grade printed on the reservoir cap (commonly DOT 3 or DOT 4). Fresh, unopened fluid helps prevent internal corrosion and seal wear. Always keep fluid off paintwork, cap the lines during service to limit aeration, and check the booster’s vacuum hose and one-way valve while you’re there.

Common signs the Gran Move’s master cylinder needs attention include a slowly sinking pedal at the lights, an abnormally long pedal with no external leaks, fluid weeping at the rear of the cylinder into the booster, a brake warning lamp from low fluid, or inconsistent braking effort between circuits. If these show up, book it in promptly—brake hydraulics aren’t something to “wait and see”.

When replacing the master cylinder, bench-bleeding on the bench or in situ (using bleed tubes back into the reservoir) saves time and frustration. Fit new reservoir grommets and seals, transfer any sensors, and tighten fittings to factory spec using a proper flare-nut spanner. Bleeding order on most RHD hydraulic systems is rear-right, rear-left, front-right, front-left, but follow the workshop procedure, and use the ABS bleed method if the vehicle is ABS-equipped. After the job, confirm pedal free play, check for leaks under full pedal hold, and road-test in a safe area to ensure a firm, consistent pedal.

• Periodic fluid flush: every 2 years
• Use only clean DOT 3 or DOT 4 as specified
• Bench-bleed new master before bleeding the wheels

Popular questions

What are the tell-tale signs the 2000 Gran Move’s master cylinder is failing?
Classic symptoms are a pedal that slowly sinks under steady pressure, a long or spongy pedal even after a proper bleed, and fluid traces between the master and booster. If there’s no external leak at the wheels or hoses yet the pedal drops, the internal seals in the master are likely bypassing.

If the brake warning light is on due to low fluid and there are no obvious external leaks, check the rear of the master for dampness. Any of the above is a prompt to get it inspected and sorted.

How often should the brake fluid be changed on a Gran Move?
Every 24 months is a good rule of thumb for Australian and New Zealand conditions. Brake fluid absorbs moisture over time, which lowers its boiling point and can corrode the master cylinder and ABS components.

Always use the grade shown on the reservoir cap—typically DOT 3 or DOT 4—and only from a sealed container. A regular flush is cheap insurance for the master cylinder and the rest of the brake system.

Can the Gran Move be driven with a leaking or soft-pedal master cylinder?
It shouldn’t be. A compromised master can lose pressure suddenly, especially under repeated stops or downhill driving. If the pedal sinks or feels inconsistent, get it towed or driven only the shortest, safest distance to a workshop.

Addressing the issue early usually means a straightforward master cylinder replacement and flush, rather than chasing bigger problems through the rest of the system.