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) 2.0 MZR-CD (BK12) … View more

The steps may slightly vary depending on the car design.

How to change a front strut mount on MAZDA 3 BK TUTORIAL | AUTODOC

All the parts you need to replace – Strut Mount for 3 Saloon (BK) and other MAZDA models

Top strut mount

Repair kit, suspension strut

Anti-Friction Bearing, suspension strut support mounting

Supporting Ring, suspension strut bearing

Suspension Strut Mounting

        Top strut mount for MAZDA 3 Saloon (BK) 2.0 (BKEP) Petrol (150 hp)
      
        Top strut mount for MAZDA 3 Saloon (BK) 1.6 DI Turbo (BK12Y) Diesel (109 hp)
      
        Top strut mount for MAZDA 3 Saloon (BK) 2.0 MZR-CD (BK12) Diesel (143 hp)

Replacement: strut mount – Mazda 3 BK. Tools you'll need:

                        Wire brush
                      
                        WD-40 spray
                      
                        Brake cleaner
                      
                        Copper grease
                      
                        Drive socket # 14
                      
                        Drive socket # 17
                      
                        Combination spanner #19
                      
                        HEX bit no.H6.
                      
                        Wheel impact socket #19
                      
                        Ratchet wrench
                      
                        Torque wrench
                      
                        Hydraulic strut spring compressor
                      
                        Flat Screwdriver
                      
                        Rubber mallet
                      
                        Flat chisel
                      
                        Hammer
                      
                        Fender cover
                      
                        Wheel chock

Buy tools

Replacement: strut mount – Mazda 3 BK. AUTODOC recommends:

The replacement procedure is identical for the mounts of the left and right shock struts of the front suspension.
All mounts of the front shock struts should be replaced simultaneously.
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.

AUTODOC recommends:
Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. Mazda 3 BK
Step 5

Remove the wheel.
Step 6

Clean the stabiliser link fasteners. Use a wire brush. Use WD-40 spray.
Step 7

Unscrew the fastener connecting the stabilizer link to the shock strut. Use a drive socket #17. Use a ratchet wrench.
Step 8

Remove the ABS wiring harness bracket.

Step 9

Remove the stabilizer rod.

Step 10

Remove the fastener attaching the brake hose to the shock strut. Use a flat screwdriver.
Step 11

Detach the brake hose from the shock strut.

Step 12

Clean the lower fastener connecting the suspension strut to the steering knuckle. Use a wire brush. Use WD-40 spray.
Step 13

Unscrew the lower fastener connecting the shock strut to the steering knuckle. Use a drive socket #17. Use a ratchet wrench.
Step 14

Remove the fastening bolt.

Step 15

Release the lower fastener connecting the shock strut to the steering knuckle. Use a flat metal-working chisel. Use a hammer.

Step 16

Disconnect the steering knuckle from the shock absorber strut. Use a rubber mallet.
Step 17

Lower the car.
Step 18

Open the bonnet.
Step 19

Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.

Step 20

Clean the fasteners of the shock strut upper mount. Use a wire brush. Use WD-40 spray.

Step 21

Unscrew the upper fasteners of the shock strut (3 pieces). Use a drive socket #14. Use a ratchet wrench.

AUTODOC recommends:
Important! Hold the suspension strut while unscrewing the fastening bolts. Mazda 3 BK
Step 22

Remove the suspension strut.
Step 23

Set the shock absorber strut on the spring compressor tool.

Replacement: strut mount – Mazda 3 BK. AUTODOC experts recommend:
Note that when using a spring compressor, spring coils need to be securely gripped, compressing the spring on the opposite sides.Ensure the correct position of the spring in the retainer.Make sure that the spring coils tightly entered the lock handles.
Step 24

Compress the spring.

Step 25

Treat the shock strut rod. Use a wire brush. Use WD-40 spray.
Step 26

Remove the strut piston rod nut. Use a combination spanner #19. Use HEX No.H6. Use a ratchet wrench.
Step 27

Remove the top strut mount. Use a flat screwdriver.

Replacement: strut mount – Mazda 3 BK. AUTODOC recommends:
Examine the shock absorber dust cap and the bump stop. Replace them if necessary.
Step 28

Install a new top shock strut mount.
Step 29

Tighten the shock strut piston rod nut. Use a combination spanner #19. Use HEX No.H6. Use a torque wrench. Tighten it to 60 Nm torque.

Replacement: strut mount – Mazda 3 BK. Tip:
Check to make sure the spring is positioned correctly. Avoid its misalignment.
Step 30

Decompress the spring.

Step 31

Treat the shock strut rod. Use copper grease.
Step 32

Remove the assembled shock strut.

Step 33

Install the shock strut into the wheel arch.
Step 34

Secure the upper fasteners of the shock strut (3 pieces).

AUTODOC recommends:
Mazda 3 BK – To avoid injury, hold the suspension strut while screwing in the fastening bolts.
Step 35

Tighten the upper fasteners of the shock strut (3 pieces). Use a drive socket #14. Use a torque wrench. Tighten it to 30 Nm torque.
Step 36

Treat the fasteners of the shock strut mount. Use copper grease.

Step 37

Remove the fender protection cover.

Step 38

Close the hood.
Step 39

Raise the front of the car and secure on supports.
Step 40

Fix the shock absorber strut on the steering knuckle. Use a rubber mallet.

Step 41

Prop up the steering knuckle. Use a hydraulic transmission jack.
Step 42

Install the fastening bolt.

Step 43

Tighten the lower fastening of the shock absorber. Use a drive socket #17. Use a torque wrench. Tighten it to 70 Nm torque.
Step 44

Fasten the brake hose on the strut.

Step 45

Install the brake hose retaining clip. Use a rubber mallet.
Step 46

Remove the support from under the steering knuckle.

AUTODOC recommends:
Replacement: strut mount – Mazda 3 BK. Lower the transmission jack smoothly, without jerks, to avoid damaging components and mechanisms.
Step 47

Ιnstall the transverse stabilizer link.

Step 48

Install the ABS wiring harness bracket.

Step 49

Tighten the fastener connecting the stabilizer link to the shock strut. Use a drive socket #17. Use a torque wrench. Tighten it to 50 Nm torque.
Step 50

Treat the shock strut fasteners. Treat all joints of the stabiliser link. Use copper grease.
Step 51

Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 52

Clean the brake disk surface. Use a brake cleaner.

AUTODOC recommends:
Replacement: strut mount – Mazda 3 BK. After applying the spray, wait a few minutes.
Step 53

Install the wheel.

AUTODOC recommends:
Warning! To avoid injury, hold the wheel while screwing in the fastening bolts on the car. Mazda 3 BK
Step 54

Screw in the wheel bolts. Use wheel impact socket #19.
Step 55

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 56

Remove the jacks and chocks.

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