TIAGO

BRAKES

CAUTION NOTE:

Use only DOT4 brake fluids confirming to SAE

J1704 from a sealed container. Ensure brake

fluid is not contaminated.

Entire Bleeding operation should be carried out

with the Engine ON (running) condition only.

As the hydraulic lines of brake system are of

DIAGONAL SPLIT, always perform bleeding

operation starting with the caliper farthest from

master cylinder and then at the rear brake

assembly of the same brake circuit. Repeat the

same on the other brake circuit also.

Brake fluid may cause damage to paint. So make

sure that brake fluid should not touch the painted

surface, If it accidentally touches the painted

surface, wipe immediately and clean the surface.

BLEEDING PROCEDURE

Carefully clean all dirt from around the reservoir

filler cap. Remove the filler cap; fill the reservoir

with fresh brake fluid to the Maximum marking

indicated on the reservoir. Before commencing

bleeding, at each bleed screw, remove the dust

cap and clean thoroughly.

The sequence for bleeding the system is as

shown. Attach transparent (vinyl) bleed tube to

the bleeder screw top of the Left caliper and insert

the other end into a clean glass container

containing recommended brake fluid to submerge

the end of the tube as show in fig.

Start the Engine since the entire bleeding

operation has to be carried out with engine at

running condition only. Depress brake pedal

slowly throughout the full stroke of the pedal and

then holding it depressed, loosen bleeder plug

about one-third to one-half turn. This is sufficient

enough to allow the brake fluid to flow freely.

NOTE:

It is always better to close the bleed screw at the

end of each downward pedal stroke to ensure full

recuperation of brake fluid in the system.

There should be an interval of 3 to 4 seconds

before making the next stroke. This action should

be repeated until bubbles of air cease to appear

at the end of the bleed tube.

Close the bleed screw immediately after the last

downward stroke of the pedal. Whilst the pedal is

thus held, securely tighten the bleed screw to

recommended tightening torque and remove the

tube. Replace the dust cap on the bleed screw.

Ensure that the fluid level in the master cylinder

reservoir does not fall low enough to cause air to

be drawn into the system, throughout the bleeding

operation. Repeat the same procedure on the rear

right wheel cylinder, followed by right caliper

followed by the rear left wheel cylinder. If the

bleeding of any cylinder continues without

success for a considerable time, it may be that air

is being drawn in past the bleed screw threads.

In such instances, the bleed screw should be

closed at the end of each downward stroke of the

pedal, allowing the pedal to return fully to its stop

before re-opening. Tighten the bleed screw finally

after the last downward stroke of the pedal.

Replace the dust cap on the bleed screw.

After completion of bleeding, apply the brake

pedal hard and check for any leak at the joints

and bleed screws. Also check the brake pedal for

“sponginess”, If found spongy repeat the complete

procedure of bleeding.

BRAKE FLUID LEVEL INSPECTION:

After completion of brake bleeding check the

brake fluid level in the reservoir. The fluid level

should be between MIN and MAX level indicated

on the brake master cylinder reservoir. If the

warning light lights during Engine ON condition

replenish fluid to MAX line. Never use container

which has been used for mineral oil or which is

wet. Always keep all brake fluid container capped

to prevent contamination.

SERVICING OF MASTER CYLINDER

Note - Servicing of the fixed seal master cylinder

internal parts are not recommended and if a major

fault is apparent, a new complete guaranteed unit

should be fitted.