Parts for your 1997 Daihatsu Gran move-Brake master cylinder

1997 Daihatsu Gran Move brake master cylinder — purpose, maintenance, and replacement

Based on technical references including the Daihatsu Pyzar/Gran Move workshop manual (G3-series, c.1996–2002), the Daihatsu Electronic Parts Catalogue (EPC), and common AU/NZ aftermarket fitment guides from Aisin, TRW and Protex, the 1997 Daihatsu Gran Move is fitted with a tandem hydraulic brake master cylinder mounted to a vacuum brake booster. So yes — the brake master cylinder is relevant to this model.

The brake master cylinder on a ’97 Gran Move does the hard yards of turning pedal effort into hydraulic pressure and splitting it across the front and rear brake circuits. Being a tandem (dual-circuit) unit, it keeps some braking available even if one circuit cops a leak. Pair that with the booster, and you get decent pedal feel without having to stomp the pedal.

Owners typically notice master cylinder issues as a soft or sinking pedal, braking that fades when holding pressure at the lights, or fluid weeping down the booster. Contaminated or dark fluid in the reservoir is another red flag.

• Spongy or sinking pedal when held
• Brake warning light with low fluid level
• Wetness at the rear of the master cylinder/booster
• Uneven braking or longer stopping distances

Replacement is straightforward if you’re handy with spanners:

1. Protect paintwork — brake fluid is harsh on duco. Lay rags and use a catch bottle.
2. Siphon old fluid from the reservoir. Crack line fittings with a proper flare-nut spanner.
3. Unbolt the master from the booster, bench-bleed the new unit per the kit instructions, then refit.
4. Reconnect lines, top up with the correct brake fluid, and bleed the system starting at the wheel furthest from the master (often RR, LR, RF, LF). On ABS-equipped cars, follow the manual’s bleed order and steps.
5. Check for leaks, confirm a firm pedal, and road-test carefully.

For servicing, keep the reservoir at the MAX line and change fluid every 2 years (or around 40,000 km) using the specification shown on the reservoir cap or owner’s manual — typically DOT 3, quality DOT 4 is also commonly used in AU/NZ but don’t mix types if unsure. If the pedal sinks or there’s internal bypassing, don’t put it off — replace the master cylinder and flush the system. While you’re there, inspect hoses, callipers/wheel cylinders and the booster check-valve so the new master isn’t masking other issues. Done right, the Gran Move’s hydraulic system will stay reliable for the long haul.

Does the 1997 Daihatsu Gran Move have a brake master cylinder?

It does. The Daihatsu workshop manual for the Pyzar/Gran Move (G3-series), the Daihatsu EPC, and AU/NZ parts catalogues from Aisin, TRW and Protex all list a tandem master cylinder with a vacuum booster for the 1997 model.

What are common signs the Gran Move’s master cylinder is failing?

Classic signs are a soft or sinking pedal when held, fluid leaks at the booster, a brake warning light due to low fluid, and longer stopping distances. If you’ve bled the brakes and the pedal still won’t firm up, internal bypassing in the master is likely.

Which brake fluid should be used, and how often should it be changed?

Use what’s specified on the reservoir cap or in the owner’s manual — typically DOT 3, quality DOT 4 is commonly used locally as well. Replace brake fluid every 2 years or about 40,000 km. Always keep the reservoir clean, don’t let it run dry during bleeding, and avoid mixing incompatible fluids.