Recommended replacement interval for the part category Brake pad set : 30000 km

Important!

This replacement procedure can be used for:
TOYOTA iQ (_J1_) 1.4 D-4D (NUJ10_), TOYOTA iQ (_J1_) 1.33 (NGJ10_), TOYOTA iQ (_J1_) 1.0 (KGJ10_) … View more

The steps may slightly vary depending on the car design.

This video shows the replacement procedure of a similar car part on another vehicle

All the parts you need to replace – Brake Pads for iQ (_J1_) and other TOYOTA models

Alternative products

Brake pad set

Replacement: brake pads – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). Tools you'll need:

                      Wire brush
                    
                      Nylon cleaning brush
                    
                      WD-40 spray
                    
                      Brake cleaner 
                    
                      Anti-squeal paste
                    
                      Copper grease 
                    
                      Torque wrench
                    
                      Combination spanner #14
                    
                      Drive socket # 14
                    
                      Ratchet wrench
                    
                      Wheel impact socket #21
                    
                      Brake caliper wind back tool
                    
                      Crow bar
                    
                      Wheel chock

Buy tools

Replacement: brake pads – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). AUTODOC recommends:

Perform the replacement of brake pads in complete set for each axis. This provides effective braking.
The replacement procedure is identical for all brake pads on the same axle.
All work should be done with the engine stopped.

Replacement: brake pads – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). Recommended sequence of steps:

Step 1

Open the bonnet. Unscrew the brake fluid reservoir cap.

Step 2

Secure the wheels with chocks.

Step 3

Loosen the wheel mounting bolts. Use wheel impact socket #21.
Step 4

Raise the front of the car and secure on supports.

Step 5

Unscrew the wheel bolts.

AUTODOC recommends:
Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_)
Step 6

Remove the wheel.
Step 7

Clean the brake caliper fasteners. Use a wire brush. Use WD-40 spray.
Step 8

Unscrew the brake caliper fastening. Use a combination spanner #14. Use a drive socket #14. Use a ratchet wrench.
Step 9

Spread the brake pads. Use a crowbar.
Step 10

Lift the caliper up.

Replacement: brake pads – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). Professionals recommend:
Tie the caliper to the suspension or to the body with a wire without disconnecting from the brake hose to prevent depressurization of the brake system.Make sure that the brake caliper is not hanging on the brake hose.Don't press the brake pedal after the brake caliper has been removed. As a result, the piston can fall out from the brake cylinder, and brake fluid leakage and depressurization of the system may occur. Check the brake caliper bracket, brake caliper guide pins and boots. Clean them. Replace, if necessary.
Step 11

Remove the brake pads.

Replacement: brake pads – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). Tip from AUTODOC:
Measure the brake disc thickness. Upon reaching the wear limit the part must be replaced.
Step 12

Remove the retaining springs of the brake pads. Use a crowbar.
Step 13

Clean the brake caliper bracket from dirt and dust. Use a wire brush. Use a brake cleaner.

AUTODOC recommends:
Replacement: brake pads – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). After applying the spray, wait a few minutes.
Step 14

Install the retaining springs of the brake pads.
Step 15

Treat the brake caliper piston. Use a nylon cleaning brush. Use a brake cleaner.

AUTODOC recommends:
Replacement: brake pads – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). After applying the spray, wait a few minutes.
Step 16

Press in the brake caliper piston. Use brake caliper wind back tool.
Step 17

Treat the brake pads in the area where their surface comes into contact with the brake caliper bracket. Use anti-squeal paste.

Replacement: brake pads – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). Tip from AUTODOC experts:
Make sure the disc surface is clean before installing the pads.
Step 18

Install new brake pads.

Replacement: brake pads – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). Tip from AUTODOC:
Make sure the pads are installed with linings facing the disc.
Step 19

Install the brake caliper and fix it. Use a combination spanner #14. Use a drive socket #14. Use a torque wrench. Tighten it to 35 Nm torque.
Step 20

Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 21

Clean the brake disk surface. Use a brake cleaner.

AUTODOC recommends:
Replacement: brake pads – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). After applying the spray, wait a few minutes.
Step 22

Install the wheel.

Replacement: brake pads – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). Tip:
To avoid injury, hold up the wheel when screwing in the fastening bolts.
Step 23

Screw in the wheel bolts. Use wheel impact socket #21.
Step 24

Lower the car and working in a cross order, tighten the wheel bolts. Use wheel impact socket #21. Use a torque wrench. Tighten it to 103 Nm torque.
Step 25

Remove the jacks and chocks.

Replacement: brake pads – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). Professionals recommend:
Check the brake fluid level in the expansion tank and refill if necessary.
Step 26

Tighten the brake fluid reservoir cap.

Replacement: brake pads – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). AUTODOC experts recommend:
Without starting the engine, press the brake pedal several times until you feel significant resistance.
Step 27

Close the hood.

Replacement: brake pads – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). AUTODOC recommends:
Slow down smoothly for first 150-200 km after the brake pads replacement. Avoid unneccessary and sharp braking to a stop.

Was this manual helpful?

Please rate this manual on a scale from 1 to 5. If you have any questions, feel free to ask us.

Need New Tyres?

Find out which tyre and wheel sizes are compatible with the TOYOTA iQ (AJ10) model

Toyota IQ AJ1 tyre size

How to change rear brake pads on TOYOTA iQ (_J1_) – replacement guide

Free download PDF
1.41 MB
How to change front wheel bearing on TOYOTA iQ (_J1_) – replacement guide

Free download PDF
3.7 MB
How to change front wheel bearing on TOYOTA iQ (AJ10) – replacement guide

Free download PDF
4.42 MB
How to change spark plugs on TOYOTA iQ (_J1_) – replacement guide

Free download PDF
1.06 MB
How to change front windshield wipers on TOYOTA iQ (AJ10) – replacement guide

Free download PDF
1.41 MB
How to change engine oil and filter on TOYOTA iQ (AJ10) – replacement guide

Free download PDF
2.04 MB

How to change rear brake pads on TOYOTA iQ (_J1_) – replacement guide

Free download PDF
1.41 MB
How to change brake pads on a car – replacement tutorial

Universal

Free download PDF
2.84 MB
How to change front brake pads on Toyota Prado J120 – replacement guide

Free download PDF
2.08 MB
How to change rear brake pads on Toyota Auris E15 – replacement guide

Free download PDF
1.53 MB
How to change rear brake pads on Toyota Prado J120 – replacement guide

Free download PDF
1.93 MB
How to change front brake pads on Toyota Aygo AB1 – replacement guide

Free download PDF
2.47 MB

Unlock your car maintenance assistant!

Track expenses, manage logs, schedule replacements, and more.

5 mistakes when replacing consumables

5K views

Published on: 06/02/2025
Prevent Engine Damage: How to Identify Rocker Cover Gasket Issues and Proper Replacement | AUTODOC

5K views

Published on: 03/12/2020
How to Prevent Premature Wear on Your Car Boot Damper | AUTODOC

4K views

Published on: 04/07/2021
K2 ROTON wheel cleaner overview

3K views

Published on: 27/03/2025