Services
Brake Fluid Change
Brake fluid carries the force from your pedal to the calipers at each wheel. Over time it absorbs moisture and its boiling point falls — a silent decline that, under hard braking, can end in a pedal that sinks without effect.
What does Brake Fluid Change involve at Alpay Servis?
Brake fluid carries the force from your pedal to the calipers at each wheel. Over time it absorbs moisture and its boiling point falls — a silent decline that, under hard braking, can end in a pedal that sinks without effect.
The unseen hero of the braking system is the fluid inside its circuit. Press the pedal and the pressure you create reaches all four wheels in a fraction of a second, carried by that fluid. Because liquid does not compress, pedal feel and wheel force correspond exactly — until the fluid itself begins to degrade.
Invisible Ageing
Brake fluid steadily absorbs moisture from the atmosphere. From the outside nothing seems wrong: the level is fine and the colour only slightly darker. Yet the rising water content lowers the fluid's boiling point. On a long descent, or during repeated hard stops, heat turns that water to vapour and compressible bubbles form in the circuit. The result is a pedal that sinks and inspires no confidence at exactly the moment it matters. Moisture also accelerates corrosion of the circuit's metal components.
The Change Procedure
- The condition and moisture content of the existing fluid are tested.
- Hoses, pipes and unions are inspected for any sign of leakage.
- Fresh fluid of the correct specification is fed through while the old fluid is flushed out.
- The system is bled at all four wheels in sequence.
- Pedal feel and braking response are verified in a final check.
A brake fluid change is a modest piece of maintenance with a critical effect. If you do not know when your car's fluid was last renewed, arrange a test and change at our workshop in Bornova, İzmir via the online appointment form or by phone.
What Does This Service Cover?
- Check of fluid level and possible leak points
- Testing of the fluid's moisture content
- Complete change with fluid of the correct specification
- Bleeding the system at all four wheels in sequence
- Final check of pedal feel and braking response
Signs You May Need This
- A brake pedal that feels soft and travels deeper
- Fading pedal response after repeated hard braking
- Fluid in the reservoir looking dark and aged
- The brake warning light flickering on occasionally
Frequently Asked Questions
Why does brake fluid need changing at intervals?
Brake fluid is hygroscopic — it draws moisture from the air over time. As the water content rises, the boiling point falls, and the heat of hard braking can then form vapour bubbles within the fluid. Vapour compresses, so the pedal sinks; that is why the change is done periodically.
What does a falling fluid level indicate?
There are two usual causes: the caliper pistons sitting further out as the pads wear, or a leak somewhere in the system. The first is a natural process; the second is a fault that must not wait. Telling them apart requires the system to be inspected.
Why is bleeding the system so important?
A brake circuit behaves like a solid link only when no air remains inside it. Even the smallest trapped bubble gives the pedal a spongy feel and delays the braking response. That is why, after the change, the system is bled carefully at all four wheels in sequence.
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