Symptom
|
Suspect Area
|
Reference
|
Lower pedal or spongy pedal
|
1. Integrated Brake Actuation Unit (Air in)
|
air·bleed
|
2. AHB system (Fluid leaks)
|
replace
|
3. Piston seals in IBAU (Worn or damaged)
|
replace
|
Brake drag
|
1. Brake pedal free play (Minimum)
|
adjust
|
2. Pad or lining (Cracked or distorted)
|
replace
|
3. Piston (Stuck)
|
replace
|
4. Piston (Frozen)
|
replace
|
5. Anchor or Return spring (Inoperative)
|
replace
|
6. Master cylinder (Inoperative)
|
replace
|
7. IBAU (Inoperative)
|
replace
|
Brake pull
|
1. Piston (Sticking)
|
replace
|
2. Pad or lining (Oily)
|
replace
|
3. Piston (Frozen)
|
replace
|
4. Disc (Scored)
|
replace
|
5. Pad or lining (Cracked or distorted)
|
replace
|
Hard pedal but brake inefficient
|
1. Brake system (Fluid leaks)
|
repair
|
2. Brake system (Air in)
|
air·bleed
|
3. Pad or lining (Worn)
|
replace
|
4. Pad or lining (Cracked or distorted)
|
replace
|
5. Rear brake shoe clearance(Out of adjustment)
|
adjust
|
6. Pad or lining (Oily)
|
replace
|
7. Pad or lining (Glazed)
|
replace
|
8. Disc (Scored)
|
replace
|
9. IBAU (Inoperative)
|
replace
|
10. PSU (Inoperative)
|
replace
|
Noise from brake
|
1. Pad or lining (Cracked or distorted)
|
replace
|
2. Installation bolt (Loosen)
|
adjust
|
3. Disc (Scored)
|
replace
|
4. Sliding pin (Worn)
|
replace
|
5. Pad or lining (Dirty)
|
clean
|
6. Pad or lining (Glazed)
|
replace
|
7. Brake pad shim (Damage)
|
replace
|
Brake fades
|
1. Pad or lining (Worn)
|
replace
|
2. Master cylinder (Inoperative)
|
replace
|
Brake vibration, pulsation
|
1. Pedal free play
|
adjust
|
2. Master cylinder (Inoperative)
|
replace
|
3. Caliper (Damage)
|
replace
|
4. Master cylinder cap seal
|
replace
|
5. Damaged brake lines
|
replace
|
Heavey pedal
(Halt)
|
1. Brake pedal sticking (lack of grease)
|
repair
|
2. IBAU (Inoperative)
|
replace
|
Motor sounds and excessive time to braking when consecutive 2 or 3
times pushing brake pedal
(In the case of that accumulator pressure increase rate is under 5bar/sec
when checking sensor figures of AHB with GDS)
|
1. AHB system (air in)
|
air·bleed
|
2. PSU(Inoperative)
|
replace
|
Excessive noise when pushing brake pedal
|
1. IBAU/PSU system (air in)
|
air·bleed
|
Other information:
Kia Niro (DE HEV) Owners Manual: Operation Tips
To keep dust or unpleasant fumes from entering the vehicle through the ventilation
system, temporarily set the air intake control to the recirculated air position.
Be sure to return the control to the fresh air position when the irritation
has passed to keep fresh air in the vehicle. Thi ...
Kia Niro 2017 (DE HEV) Service Manual: Components and components location
Components Location
1. High Voltage Battery System Assembly
2. High Voltage Battery Pack Assembly
3. Power Relay Assembly (PRA)
4. High Voltage Front Cover
5. High Voltage Rear Cover
1. High Voltage Battery System Assemb ...