Important!

This replacement procedure can be used for:
MAZDA 3 Saloon (BK) 2.0 (BKEP), MAZDA 3 Saloon (BK) 1.6 DI Turbo (BK12Y), MAZDA 3 Saloon (BK) 2.3, MAZDA 3 Saloon (BK) 2.0 MZR-CD (BK12), MAZDA 3 Saloon (BK) 2.0 … View more

The steps may slightly vary depending on the car design.

How to change front lower arm on MAZDA 3 BK TUTORIAL | AUTODOC

Alternative products

Suspension arm

Replacement: front lower arm – Mazda 3 BK. Tools you might need:

                      Wire brush
                    
                      WD-40 spray
                    
                      Brake cleaner
                    
                      Copper grease 
                    
                      Drive socket # 12 
                    
                      Drive socket # 14 
                    
                      Drive socket # 17 
                    
                      Drive socket # 18 
                    
                      Combination spanner #16
                    
                      Wheel impact socket #19
                    
                      Ratchet wrench
                    
                      Torque wrench
                    
                      Ball joint puller
                    
                      Rubber mallet
                    
                      Crow bar
                    
                      Hammer
                    
                      Pin punch
                    
                      Hydraulic transmission jack
                    
                      Wheel chock

Buy tools

Replacement: front lower arm – Mazda 3 BK. AUTODOC recommends:

The replacement procedure is identical for the left and right lower control arms.
Please note: all work on the car – Mazda 3 BK – should be done with the engine switched off.

Carry out replacement in the following order:

Step 1

Secure the wheels with chocks.
Step 2

Loosen the wheel mounting bolts. Use wheel impact socket #19.
Step 3

Raise the front of the car and secure on supports.
Step 4

Unscrew the wheel bolts.

Replacement: front lower arm – Mazda 3 BK. Tip:
To avoid injury, hold up the wheel when unscrewing the bolts.
Step 5

Remove the wheel.
Step 6

Clean the fastener connecting the tie rod end to the steering knuckle. Use a wire brush. Use WD-40 spray.

Step 7

Unscrew the end fastening nut to the steering knuckle. Use a drive socket #17. Use a ratchet wrench.
Step 8

Disconnect the tie rod end from the steering knuckle. Use a ball joint puller.
Step 9

Clean the fastener connecting the ball joint to the steering knuckle. Use a wire brush. Use WD-40 spray.

Step 10

Unscrew the fastener connecting the ball joint to the steering knuckle. Use a combination spanner #16. Use a drive socket #14. Use a ratchet wrench.
Step 11

Remove the fastening bolt.
Step 12

Disconnect the lower arm from the steering knuckle. Use a rubber mallet. Use a crowbar.
Step 13

Clean the fasteners connecting the control arm to the subframe. Use a wire brush. Use WD-40 spray.

Step 14

Unscrew the front arm fastener. Use a drive socket #18. Use a ratchet wrench.
Step 15

Remove the front fastener of the control arm.

Step 16

Unscrew the rear fastener connecting the control arm to the subframe. Use a drive socket #18. Use a ratchet wrench.
Step 17

Remove the rear fastener of the control arm.

Step 18

Remove the arm.
Step 19

Unscrew the fasteners and remove the bump stop from the front independent suspension lower control arm. Use a drive socket #12. Use a ratchet wrench.
Step 20

Install and fix the bump stop onto the new control arm. Use a drive socket #12. Use a torque wrench. Tighten it to 19 nm torque.
Step 21

Clean the mounting seats and the thread of the suspension arm. Use a wire brush. Use WD-40 spray.
Step 22

Install a new arm.

AUTODOC recommends:
During the installation process, use only new bolts and nuts.Do not damage the ball joint cover.
Step 23

Install the front fastener of the arm.

Step 24

Install the rear fastener of the control arm.

Step 25

Screw the front arm fastener. Use a drive socket #18. Use a ratchet wrench.
Step 26

Tighten the rear fastener of the control arm. Use a drive socket #18. Use a torque wrench. Tighten it to 86 nm torque.
Step 27

Connect the ball joint to the steering knuckle. Use a rubber mallet.

Step 28

Install the fastening bolt. Use a pin punch. Use a hammer.

Step 29

Tighten the ball joint fastener. Use a combination spanner #16. Use a drive socket #14. Use a torque wrench. Tighten it to 55 Nm torque.
Step 30

Connect the tie rod end to the steering knuckle.

Step 31

Tighten the fastening nut connecting the tie rod end to the steering knuckle. Use a drive socket #17. Use a torque wrench. Tighten it to 40 nm torque.
Step 32

Support the arm. Use a hydraulic transmission jack.
Step 33

Tighten the front fastener connecting the control arm to the subframe. Use a drive socket #18. Use a torque wrench. Tighten it to 130 nm torque.
Step 34

Remove the support from under the arm.

AUTODOC recommends:
Replacement: front lower arm – Mazda 3 BK. Lower the transmission jack smoothly, without jerks, to avoid damaging components and mechanisms.
Step 35

Treat all joints of the arm. Treat the fastener connecting the tie rod end to the steering knuckle. Use copper grease.

Step 36

Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 37

Clean the brake disk surface. Use a brake cleaner.

AUTODOC recommends:
Replacement: rear lower arm – Mazda 3 BK. After applying the spray, wait a few minutes.
Step 38

Install the wheel.

Replacement: front lower arm – Mazda 3 BK. Tip:
To avoid injury, hold up the wheel when screwing in the fastening bolts.
Step 39

Screw in the wheel bolts. Use wheel impact socket #19.
Step 40

Lower the car and working in a cross order, tighten the wheel bolts. Use wheel impact socket #19. Use a torque wrench. Tighten it to 118 nm torque.
Step 41

Remove the jacks and chocks.

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