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How to change front wheel bearing on Alfa Romeo 147 937 – replacement guide

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Important!

This replacement procedure can be used for:
ALFA ROMEO 147 (937) 2.0 16V T.SPARK (937.AXA1, 937.AXC1, 937.BXC1), ALFA ROMEO 147 (937) 1.6 16V T.SPARK (937.AXA1A, 937.AXB1A, 937.BXB1A), ALFA ROMEO 147 (937) 1.6 16V T.SPARK ECO (937.AXA1A, 937.BXA1A), ALFA ROMEO 147 (937) 1.9 JTD 16V (937.AXG1B, 937.BXG1B), ALFA ROMEO 147 (937) 1.9 JTD (937.AXF1A, 937.BXF1A), ALFA ROMEO 147 (937) 1.9 JTDM 8V (937.AXD1A, 937.AXU1A, 937.BXU1A), ALFA ROMEO 147 (937) 1.9 JTDM 16V (937.AXN1B, 937.BXN1B), ALFA ROMEO 147 (937) 1.9 JTD 16V (937.AXG1B, 937.BXG1B), ALFA ROMEO 147 (937) 1.9 JTD 16V (937.AXM1B, 937.AXS1B), ALFA ROMEO 147 (937) 1.9 JTDM 16V (937.AXN1B, 937.AXZ1B), ALFA ROMEO 147 (937) 1.9 JTD (937.AXD1A, 937.BXD1A, 937.AXV1A, 937.BXB1A,..., ALFA ROMEO 147 (937) 2.0 (937.AXC, 937.BXC), ALFA ROMEO 147 (937) 1.9 JTD (937AXD1A, 937BXD1A), ALFA ROMEO 147 (937) 1.6 LPG (937BXB1A), ALFA ROMEO 147 (937) 1.6 LPG (937AXA1A) … View more

The steps may slightly vary depending on the car design.

How to change front wheel bearing on ALFA ROMEO 147 (937) [TUTORIAL AUTODOC]

Alternative products

Wheel bearing kit

Replacement: wheel bearing – Alfa Romeo 147 937. Tools you'll need:

                      Wire brush
                    
                      WD-40 spray
                    
                      Brake cleaner 
                    
                      Copper grease 
                    
                      Torque wrench
                    
                      Combination spanner #19
                    
                      Drive socket # 10
                    
                      Drive socket # 12
                    
                      Drive socket # 17
                    
                      Drive socket # 19
                    
                      Drive socket # 24
                    
                      Drive socket # 38
                    
                      HEX bit No.H7
                    
                      HEX bit No.H8
                    
                      Wheel impact socket #17
                    
                      Ratchet wrench
                    
                      Bush and bearing driver set
                    
                      Bearing separator
                    
                      Ball joint puller
                    
                      Flat screwdriver
                    
                      Phillips screwdriver
                    
                      Flat chisel
                    
                      Tap wrench
                    
                      Hammer
                    
                      Vice
                    
                      Crow bar
                    
                      Hydraulic transmission jack
                    
                      Wheel chock

Buy tools

AUTODOC recommends:

Do not re-use the bearing assembly of your Alfa Romeo 147 937 car.
The wheel hub bearing replacement procedure is identical for both wheels on the same axle.
Please note: all work on the car – Alfa Romeo 147 937 – should be done with the engine switched off.

Carry out replacement in the following order:

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 #17.
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. Alfa Romeo 147 937
Step 6

Remove the wheel.
Step 7

Clean the fastener of the driveshaft. Use a wire brush. Use WD-40 spray.
Step 8

Unstake the fastener of the driveshaft. Use a flat metal-working chisel. Use a hammer.

Step 9

Loosen the fastener of the driveshaft. Use a drive socket #38. Use a tap wrench.
Step 10

Remove the fastening nut.

Step 11

Remove the dust boot caps of the brake caliper guide pins. Use a crowbar.
Step 12

Unscrew the brake caliper fastening. Use HEX No.H7. Use a ratchet wrench.
Step 13

Detach the brake caliper retaining spring. Use a crowbar.
Step 14

Spread the brake pads. Use a crowbar.
Step 15

Remove the brake caliper.

Replacement: wheel bearing – Alfa Romeo 147 937. AUTODOC experts 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 16

Remove the brake pads.

Step 17

Clean the brake caliper bracket fasteners. Use a wire brush. Use WD-40 spray.
Step 18

Unscrew the caliper bracket fastening. Use a drive socket #19. Use a ratchet wrench. Use a tap wrench.
Step 19

Remove the caliper bracket.
Step 20

Clean the brake disc fastener. Use a wire brush. Use WD-40 spray.

Step 21

Unscrew the brake disc fastening. Use a drive socket #12. Use a ratchet wrench.

Step 22

Remove the brake disc.
Step 23

Unscrew and remove the wheel arch cover fasteners. Use a Phillips screwdriver.
Step 24

Remove the wheel arch cover.
Step 25

Detach the ABS sensor connector.
Step 26

Remove the cowl grille seal.
Step 27

Disconnect the ABS sensor wiring. Use a flat screwdriver.
Step 28

Clean the fastening bolt that connects the shock absorber fork with the lower control arm. Use a wire brush. Use WD-40 spray.
Step 29

Unscrew the fastening bolt that connects the shock absorber fork with the lower control arm. Use a combination spanner #19. Use a drive socket #19. Use a ratchet wrench.
Step 30

Remove the fastening bolt.
Step 31

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

Step 32

Unscrew the ball joint fastening to the steering knuckle. Use a drive socket #24. Use a ratchet wrench.
Step 33

Disconnect the ball joint from the steering knuckle. Use a ball joint puller. Use a hammer.
Step 34

Clean the fastener connecting the tie rod end to the steering knuckle. Use a wire brush. Use WD-40 spray.
Step 35

Unscrew the end fastening nut to the steering knuckle. Use a drive socket #17. Use a ratchet wrench.
Step 36

Disconnect the tie rod end from the steering knuckle. Use a ball joint puller.
Step 37

Clean the control arm fasteners. Use a wire brush. Use WD-40 spray.
Step 38

Unscrew the fastener that connects the suspension arm to the steering knuckle. Use a drive socket #17. Use a ratchet wrench.
Step 39

Detach the control arm. Use a ball joint puller.
Step 40

Remove the steering knuckle together with the hub.

Replacement: wheel bearing – Alfa Romeo 147 937. Professionals recommend:
Make sure that the drive shaft is not unloaded (when the car is jacked).
Step 41

Place the steering knuckle assembled with the wheel hub in a vice.

Step 42

Clean the fasteners of the brake disc cover. Use a wire brush. Use WD-40 spray.
Step 43

Unscrew the fasteners of the brake disc cover. Use a drive socket #10. Use a ratchet wrench.
Step 44

Remove the brake disc cover.
Step 45

Clean the wheel hub mounting seat. Use a wire brush. Use WD-40 spray.

Step 46

Release the vice and remove the steering knuckle assembled with the wheel hub.

Step 47

Remove the wheel hub from the steering knuckle. Use a bush and bearing driver set.
Step 48

Place the steering knuckle in the viсe.
Step 49

Clean the hub bearing mounting seat. Use a wire brush. Use WD-40 spray.
Step 50

Unscrew the fastener that connects the wheel hub bearing to the steering knuckle. Use HEX No.H8. Use a ratchet wrench. Use a tap wrench.
Step 51

Loosen the vice and remove the steering knuckle.

Step 52

Press out the wheel hub bearing. Use a bush and bearing driver set.
Step 53

Clean the hub bearing mounting seat. Use a wire brush. Use WD-40 spray.
Step 54

Pull the bearing inner race out of the wheel hub. Use a bush and bearing driver set. Use a bearing separator.
Step 55

Treat the wheel hub bearing. Use copper grease.
Step 56

Press the new bearing in the steering knuckle. Use a bush and bearing driver set.

Replacement: wheel bearing – Alfa Romeo 147 937. Tip from AUTODOC experts:
Check to make sure the wheel hub bearing is positioned correctly. Avoid its misalignment. Stop pressing on the surface of the bearing immediately after it has been fitted into its mounting seat.
Step 57

Tighten the wheel hub bearing fasteners. Use HEX No.H8. Use a ratchet wrench. Use a tap wrench.
Step 58

Tighten the fastener of the wheel hub bearing. Use HEX No.H8. Use a torque wrench. Tighten it to 76 Nm torque.
Step 59

Treat the wheel hub fasteners. Use WD-40 spray.
Step 60

Install the wheel hub on the steering knuckle. Use a bush and bearing driver set.

Replacement: wheel bearing – Alfa Romeo 147 937. AUTODOC recommends:
Make sure that the wheel hub is positioned correctly. Avoid any misalignment.
Step 61

Install the brake disc cover.
Step 62

Screw in the fasteners of the brake disc cover. Use a drive socket #10. Use a ratchet wrench.
Step 63

Treat the shock strut mounting seat on the steering knuckle. Use a wire brush. Use WD-40 spray.
Step 64

Clean the splines of the drive shaft CV joint. Use a wire brush. Use WD-40 spray.
Step 65

Install the steering knuckle with a hub in assembly.
Step 66

Attach the control arm.
Step 67

Screw in the fastener that connects the suspension arm to the steering knuckle. Use a drive socket #17. Use a ratchet wrench.
Step 68

Connect the ball joint to the steering knuckle.

Step 69

Screw the fastener connecting the ball joint to the steering knuckle. Use a drive socket #24. Use a ratchet wrench.
Step 70

Install the fastening nut.
Step 71

Screw the nut of the drive shaft.

Step 72

Treat the mounting seats of the tie rod end. Use a wire brush. Use WD-40 spray.
Step 73

Connect the tie rod end to the steering knuckle.
Step 74

Screw on the fastening nut that connects the tie rod end to the steering knuckle. Use a drive socket #17. Use a ratchet wrench.
Step 75

Install the fastening bolt.
Step 76

Screw in the fastener connecting the shock absorber fork to the lower control arm. Use a combination spanner #19. Use a drive socket #19. Use a ratchet wrench.
Step 77

Connect the ABS sensor wiring.
Step 78

Attach the ABS sensor connector.
Step 79

Install the cowl grille seal.
Step 80

Install the wheel arch cover to its mounting seat.
Step 81

Install and tighten the wheel arch cover fasteners. Use a Phillips screwdriver.
Step 82

Tighten the fastener that connects the suspension arm to the steering knuckle. Use a drive socket #17. Use a torque wrench. Tighten it to 50 nm torque.
Step 83

Tighten the fastener connecting the ball joint to the steering knuckle. Use a drive socket #24. Use a torque wrench. Tighten it to 90 nm torque.
Step 84

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 35 nm torque.
Step 85

Prop up the steering knuckle. Use a hydraulic transmission jack.
Step 86

Tighten the fastening bolt that connects the shock absorber fork to the lower control arm. Use a combination spanner #19. Use a drive socket #19. Use a torque wrench. Tighten it to 110 nm torque.
Step 87

Remove the support from under the steering knuckle.

AUTODOC recommends:
Alfa Romeo 147 937 – Do not lower the transmission jack sharply to avoid damaging components and mechanisms of the car.
Step 88

Clean the hub. Use a wire brush. Treat the contacting surface. Use copper grease.
Step 89

Install the brake disc.
Step 90

Tighten the brake disc fastening. Use a drive socket #12. Use a torque wrench. Tighten it to 11 nm torque.
Step 91

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

AUTODOC recommends:
After applying the spray, wait a few minutes.
Step 92

Install the brake caliper bracket.
Step 93

Tighten the brake caliper bracket. Use a drive socket #19. Use a torque wrench. Tighten it to 115 nm torque.
Step 94

Install the brake pads.

Step 95

Install the brake caliper and fix it. Use HEX No.H7. Use a torque wrench. Tighten it to 35 Nm torque.
Step 96

Install the dust boot caps of the brake caliper guide pins.
Step 97

Install the brake caliper retaining spring. Use a crowbar.
Step 98

Tighten the drive shaft nut. Use a drive socket #38. Use a torque wrench. Tighten it to 177 Nm torque.
Step 99

Restake the fastener of the driveshaft. Use a flat metal-working chisel. Use a hammer.
Step 100

Treat all joints of the arm. Treat the steering knuckle fasteners. Use copper grease.
Step 101

Clean the wheel rim mounting seat. Use a wire brush.
Step 102

Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 103

Clean the brake disk surface. Use a brake cleaner.

Replacement: wheel bearing – Alfa Romeo 147 937. Tip:
After applying the spray, wait a few minutes.
Step 104

Install the wheel.

AUTODOC recommends:
Warning! To avoid injury, hold the wheel while screwing in the fastening bolts on the car. Alfa Romeo 147 937
Step 105

Screw in the wheel bolts. Use wheel impact socket #17.
Step 106

Lower the car and working in a cross order, tighten the wheel bolts. Use wheel impact socket #17. Use a torque wrench. Tighten it to 108 Nm torque.
Step 107

Remove the jacks and chocks.

Replacement: wheel bearing – Alfa Romeo 147 937. Professionals recommend:
Without starting the engine, press the brake pedal several times until you feel significant resistance.
Step 108

Tighten the brake fluid reservoir cap. Close the hood.

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