Brake DiscReplacement

Brake disc replacement at PRO SERVICE (Batumi, Airport Highway 212): we measure thickness and runout, decide whether to replace, machine or keep the discs. We replace them in pairs per axle together with the pads. Price from … GEL per axle, takes 1-2 hours. Discs and pads are charged separately. Your own parts: ….

When a disc needs replacing

• Below minimum thickness. The minimum is stamped on the disc itself (often as "MIN TH") or listed in the manufacturer's data. We measure with a micrometer at several points.
• Runout. The steering wheel or pedal shakes when braking from speed — the disc has warped from heat.
• Deep grooves and a lip at the edge. New pads only partly contact such a disc and brake worse.
• Blue spots, cracks — signs of overheating, replacement only.
• Heavy corrosion. After a long stand in humid sea air the braking surface gets pitted, which goes deeper than a light film.

Rust: when it is normal

An orange film on the discs after a rainy night or a car wash is normal and wears off in the first few stops. It is a problem when rust stays in patches on the braking surface, the brakes squeal and the car pulls. This happens more with rear discs and with cars that are rarely driven: the pads do not clean the surface. In that case we also check the calipers — a seized slide pin gives the same effect.

How we replace them

1. Remove wheels, calipers, brackets and old discs.
2. Clean the hub face down to bare metal: on a dirty hub even a new disc will run out.
3. Fit new discs and pads in pairs per axle, lubricate the slide pins.
4. Check hoses, pistons and caliper boots.
5. Pump up the pedal, check the fluid, test drive and bed-in.

Types of discs

Vented discs (with internal channels) are usually at the front, solid discs at the rear. There are also drilled and slotted discs: they shed gas and water better but are noisier and wear pads faster. For daily driving around Batumi and on Adjara's mountain roads, good-quality discs of the original type are usually enough. Some cars have rear drums — we service them the same way: measure, check the wheel cylinders, replace.

Prices