Chery Tiggo 5 (T21). Service manual — part 294

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4. Remove the front brake lining.

a. Remove the inner brake lining and outer brake lining

(arrow) from brake caliper fixing bracket.

5. Remove the brake lining support gasket.

a. Remove 2 brake lining support gaskets (arrow) from

brake caliper fixing bracket.

6. Remove the brake cylinder dust boot.

a. Using a flat tip screwdriver wrapped with protective

tape, pry out the dust boots (arrow) on both sides
carefully.

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CAUTION

 Be careful not to damage brake piston and brake cylinder.

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7. Remove the front disc brake piston.

a. Place a wooden board (1) between front disc brake

piston and front disc brake cylinder.

b. Use compressed air (2) to carefully press out the

piston from front disc brake cylinder through the
attachment hole.

c. Clean the piston bore with alcohol or proper solution. Then wipe it with a piece of lint.

8. Remove the front disc brake piston seal ring.

a. Using a screwdriver wrapped with protective tape,

carefully pry out the seal rings (arrow) on both sides of
front disc brake piston from brake cylinder rear ring
groove.

Inspection

1. Check brake cylinder and piston.

a. Check piston and bore for scratches or corrosion. If there are scratches or corrosion, remove them with

fine sand cloth.

b. Remove dirt on piston with a soft brass wire brush and coarse cloth. Do not clean the piston with

polishing cloth or sand cloth, as this may damage its surface. If surface of piston is damaged, replace it.
If piston is stuck or bore is worn or corroded, replace entire brake caliper assembly. Use polishing cloth
to remove small corrosion points inside the bore.

2. Check brake caliper fixing bracket and brake caliper guide pin set.

a. Clean the contact surface of brake caliper fixing bracket and brake lining support gasket with brake

cleaner. Check for deformation, cracks, rust and foreign matter which is difficult to remove.

b. Check brake caliper guide pin rubber dust boot for deformation, cracks, worn and foreign matter which

is difficult to remove.

c. Install brake caliper guide pin and brake caliper guide pin rubber dust boot to brake caliper fixing

bracket. The brake caliper guide pin set should move smoothly without being stuck when pushing it with
hand; otherwise replace it.

d. After installing the brake lining, check if it is easy to fall out (due to insufficient elasticity of support

gasket). Replace as necessary.

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CAUTION

 Be careful not to splash brake fluid.
 DO NOT hold piston by hands to prevent injury.
 DO NOT remove or install brake piston casually, and always perform these operations by professional.

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3. Check brake lining.

a. Visually check brake lining for flatness, and also check for excessive wear. If condition of lining cannot

be confirmed accurately only by visual inspection, a physical check will be used as necessary.

b. Measure the minimum brake lining thickness. When

the minimum thickness of brake lining is 2 mm or less,
replace the brake lining.

c. When replacing excessively worn brake linings (inner and outer), it is also necessary to replace linings

on the opposite side of vehicle as well as unchecked linings to maintain proper braking performance. If
it is unnecessary to replace brake linings, be sure to reinstall brake linings to the original positions.

4. Check brake disc.

a. Minor scratch or wear on brake disc surface is acceptable. If severe scratch or deformation exists, the

brake disc must be replaced.

b. Excessive wear of brake disc may cause poor contact between brake lining and surface of brake disc. If

protrusion on the disc is not removed before installing new brake lining, abnormal wear of brake disc
will be caused.

c. It is normal that the surface of brake disc is worn when replacing brake lining. If cracks or burned spots

exist, the brake disc must be replaced.

5. Check brake disc thickness.

a. Using a vernier caliper, measure the brake disc

thickness at the center of brake lining contact surface
as shown in the illustration.



Standard thickness: 25 mm



Minimum thickness: 23 mm

b. If it is less than the minimum thickness due to wear of brake disc, replace brake disc.

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CAUTION

 DO NOT machine brake disc, because it may make the brake disc thickness less than the minimum

thickness.

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Assembly

HINT:

 Use the same procedures for the right side and left side.

 Procedures listed below are for the left side.

1. Install the front disc brake piston seal ring.

a. Apply a light coat of grease to entire inner and outer

circumferences of new front disc brake piston seal
ring.

b. Install the front disc brake piston seal ring onto the

brake cylinder.

2. Install the front disc brake piston.

a. Apply a light coat of grease to the inner and outer

circumferences, and entire periphery of outer flange
top/bottom surfaces of new brake cylinder dust boot
as shown in the illustration.

b. Apply a light coat of grease to the entire outer

circumference (part contacting with the brake cylinder
dust boot and front disc brake cylinder) of front disc
brake piston.

c. Install the brake cylinder dust boot onto the front disc brake piston.

3. Install the brake cylinder dust boot.

a. Install the front disc brake piston to the front disc brake cylinder.

CAUTION

 When assembling brake caliper assembly, always keep your hands clean.
 When assembling brake caliper assembly, always use clean new brake fluid.
 Never use old seal ring for front disc brake piston.

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Grease

CAUTION

 Securely install front disc brake piston seal ring into the rear ring groove of brake cylinder.

Grease

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CAUTION

 DO NOT install piston forcibly to brake cylinder.