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How to change front wheel bearing on Seat Leon 1M1 – replacement guide

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Important!

This replacement procedure can be used for:
SEAT Leon Hatchback (1M1) 1.6, SEAT Leon Hatchback (1M1) 1.9 TDI, SEAT Leon Hatchback (1M1) 1.9 TDI, SEAT Leon Hatchback (1M1) 1.4 16V, SEAT Leon Hatchback (1M1) 1.8 20V T, SEAT Leon Hatchback (1M1) 1.9 SDI, SEAT Leon Hatchback (1M1) 1.8 20V T 4, SEAT Leon Hatchback (1M1) 1.6 16 V, SEAT Leon Hatchback (1M1) 2.8 Cupra 4, SEAT Leon Hatchback (1M1) 1.9 TDI, SEAT Leon Hatchback (1M1) 1.8 T Cupra R, SEAT Leon Hatchback (1M1) 1.9 TDI Syncro, SEAT Leon Hatchback (1M1) 1.9 TDI, SEAT Leon Hatchback (1M1) 1.9 TDI, SEAT Leon Hatchback (1M1) 1.6, SEAT Leon Hatchback (1M1) 1.8 20V … View more

The steps may slightly vary depending on the car design.

How to change front wheel bearing on SEAT LEON 1M1 [TUTORIAL AUTODOC]

All the parts you need to replace – Wheel Bearing for Leon Hatchback (1M1) and other SEAT models

Alternative products

Wheel bearing kit

Replacement: wheel bearing – Seat Leon 1M1. List of the tools you'll need:

                      Wire brush
                    
                      Nylon cleaning brush
                    
                      WD-40 spray
                    
                      All-purpose cleaning spray
                    
                      Brake cleaner 
                    
                      Ceramic grease
                    
                      Copper grease
                    
                      Torque wrench
                    
                      Drive socket # 8
                    
                      Drive socket # 13
                    
                      Drive socket # 18
                    
                      Drive socket # 19
                    
                      Drive socket # 30
                    
                      Shock absorber socket
                    
                      HEX bit No.H7
                    
                      Combination spanner #18
                    
                      Wheel impact socket #17
                    
                      Ratchet wrench
                    
                      Tap wrench
                    
                      Phillips screwdriver
                    
                      Flat screwdriver
                    
                      3-Arm Gear Puller
                    
                      Bush and bearing driver set
                    
                      Circlip pliers
                    
                      Crow bar
                    
                      Ball joint puller
                    
                      Wheel chock

Buy tools

AUTODOC recommends:

Do not re-use the bearing assembly of your Seat Leon 1M1 car.
The wheel hub bearing replacement procedure is identical for both wheels on the same axle.
All work should be done with the engine stopped.

Replacement: wheel bearing – Seat Leon 1M1. Recommended sequence of steps:

Step 1

Open the bonnet.
Step 2

Unscrew the brake fluid reservoir cap.
Step 3

Secure the wheels with chocks.

Step 4

Loosen the fastener of the driveshaft. Use a drive socket #30. Use a tap wrench.
Step 5

Loosen the wheel bolts. Use wheel impact socket #17. Use a tap wrench.
Step 6

Raise the car.

Replacement: wheel bearing – Seat Leon 1M1. AUTODOC recommends:
If you are using a jack, make sure it rests on a flat surface without any unevenness.Be sure to additionally secure the car with jack stands.
Step 7

Unscrew the wheel bolts.

AUTODOC recommends:
Important! Hold the wheel while unscrewing the fastening bolts. Seat Leon 1M1
Step 8

Remove the wheel.
Step 9

Spread the brake pads. Use a crowbar.
Step 10

Remove the caps from the brake caliper guide pin boots. Use a crowbar.
Step 11

Unscrew the brake caliper fasteners. Use HEX No.H7. Use a ratchet wrench.
Step 12

Remove the brake caliper.

Replacement: wheel bearing – Seat Leon 1M1. 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.
Step 13

Clean the brake disc fastener. Use a wire brush. Use WD-40 spray.
Step 14

Unscrew the brake disc fasteners. Use a Phillips screwdriver.
Step 15

Remove the fastening bolt.
Step 16

Remove the brake disc.
Step 17

Unscrew the fastener connecting the drive shaft to the wheel hub. Use a drive socket #30. Use a ratchet wrench.
Step 18

Remove the fastening nut.
Step 19

Clean the fastener connecting the tie rod end to the steering knuckle. Use a wire brush. Use WD-40 spray.
Step 20

Unscrew the fastening nut connecting the tie rod end to the steering knuckle. Use a drive socket #19. Use a ratchet wrench.
Step 21

Disconnect the tie rod end from the steering knuckle. Use a ball joint puller.
Step 22

Clean the ABS sensor connector. Use a nylon cleaning brush. Use all-purpose cleaning spray.
Step 23

Detach the ABS sensor connector. Use a flat screwdriver.
Step 24

Clean the lower fastener connecting the suspension strut to the steering knuckle. Use a wire brush. Use WD-40 spray.
Step 25

Unscrew the lower fastener connecting the shock strut to the steering knuckle. Use a drive socket #18. Use a combination spanner #18. Use a ratchet wrench.
Step 26

Clean the fasteners connecting the ball joint to the suspension control arm. Use a wire brush. Use WD-40 spray.
Step 27

Unscrew the fasteners connecting the ball joint to the control arm. Use a drive socket #13. Use a ratchet wrench.
Step 28

Remove the fastening bolts.

Step 29

Disconnect the ball joint from the control arm.
Step 30

Detach the driveshaft from the steering knuckle.
Step 31

Remove the fastening bolt.

Step 32

Release the lower fastener connecting the shock strut to the steering knuckle. Use a special drive socket to remove the shock absorber.
Step 33

Disconnect the steering knuckle from the suspension strut.
Step 34

Remove the steering knuckle together with the wheel hub.
Step 35

Clean the fasteners of the brake disc cover. Use a wire brush. Use WD-40 spray.
Step 36

Unscrew the fasteners of the brake disc cover. Use a drive socket #8. Use a ratchet wrench.
Step 37

Remove the fastening bolts.
Step 38

Remove the brake disc cover.
Step 39

Remove the wheel hub from the steering knuckle. Use a bush and bearing driver set.
Step 40

Clean the wheel hub bearing retaining ring. Use a wire brush. Use WD-40 spray.
Step 41

Remove the wheel hub bearing retaining ring. Use circlip pliers.
Step 42

Press out the wheel hub bearing. Use a bush and bearing driver set.
Step 43

Clean the hub bearing mounting seat. Use a wire brush. Use WD-40 spray.
Step 44

Press-fit the new bearing into the steering knuckle. Use a bush and bearing driver set.

Replacement: wheel bearing – Seat Leon 1M1. AUTODOC experts recommend:
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 45

Install the wheel hub bearing retaining ring. Use circlip pliers.
Step 46

Dismantle the inner bearing race that is remaining on the hub. Use 3-Arm Gear Puller.
Step 47

Clean the wheel hub mounting seat. Use a wire brush. Use WD-40 spray.
Step 48

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

AUTODOC recommends:
Make sure that the wheel hub is positioned correctly. Avoid any misalignment.
Step 49

Clean the mounting seats of the shock strut. Use a wire brush. Use WD-40 spray.
Step 50

Clean the splines of the drive shaft CV joint. Use a wire brush. Use WD-40 spray.
Step 51

Treat the splines of the driveshaft CV joint. Use copper grease.

Step 52

Clean the ball joint mounting seat. Use a wire brush. Use WD-40 spray.
Step 53

Clean the tie rod end fastener. Use a wire brush. Use WD-40 spray.
Step 54

Install the steering knuckle assembled with the wheel hub.

Step 55

Fasten the suspension strut on the steering knuckle.
Step 56

Install the fastening bolt.
Step 57

Install the drive shaft.
Step 58

Attach the ball joint to the control arm.
Step 59

Install the fastening bolts.
Step 60

Tighten the fasteners that connect the ball joint to the suspension arm. Use a drive socket #13. Use a ratchet wrench.
Step 61

Clean the mounting seat of the brake disc cover. Use a wire brush. Use WD-40 spray.

Step 62

Install the brake disc cover.
Step 63

Install the fastening bolts.

Step 64

Tighten the fasteners of the brake disc back plate. Use a drive socket #8. Use a torque wrench. Tighten it to 10 Nm torque.
Step 65

Install the fastening nut.
Step 66

Screw in the fastener of the CV axle. Use a drive socket #30. Use a ratchet wrench.
Step 67

Treat the ABS sensor connector. Use dielectric grease.
Step 68

Attach the ABS sensor connector.
Step 69

Connect the tie rod end to the steering knuckle.
Step 70

Screw on the fastening nut that connects the tie rod end to the steering knuckle. Use a drive socket #19. Use a ratchet wrench.
Step 71

Clean the wheel hub. Use a wire brush.
Step 72

Treat the contacting surface. Use ceramic grease.
Step 73

Install the brake disc.
Step 74

Install the fastening bolt.
Step 75

Tighten the brake disc fasteners. Use a Phillips screwdriver. Use a torque wrench. Tighten it to 4 Nm torque.
Step 76

Clean the brake caliper bracket of dirt and dust. Use a wire brush. Use a brake cleaner.
Step 77

Install the brake caliper and fasten it.
Step 78

Tighten the brake caliper fasteners. Use HEX No.H7. Use a torque wrench. Tighten it to 28 Nm torque.
Step 79

Install the caps on the brake caliper guide pin boots.
Step 80

Tighten the fasteners connecting the ball joint to the control arm. Use a drive socket #13. Use a torque wrench. Tighten it to 20 Nm torque.+90°

Replacement: wheel bearing – Seat Leon 1M1. Tip from AUTODOC:
Important! Be sure to use new fasteners.
Step 81

Tighten the fastening nut connecting the tie rod end to the steering knuckle. Use a drive socket #19. Use a torque wrench. Tighten it to 45 Nm torque.
Step 82

Tighten the lower fasteners of the suspension strut. Use a drive socket #18. Use a torque wrench. Tighten it to 50 Nm torque.+90°

AUTODOC recommends:
Important! Be sure to use new fasteners.
Step 83

Treat the fastener that connects the suspension strut to the steering knuckle. Use copper grease.

Step 84

Treat the fastener connecting the tie rod end to the steering knuckle. Use copper grease.

Step 85

Treat the fasteners of the ball joint. Use copper grease.

Step 86

Clean the wheel rim mounting seat. Use a wire brush.
Step 87

Treat the surface where the brake disc contacts the wheel rim. Use ceramic grease.
Step 88

Clean the brake disk surface. Use a brake cleaner.
Step 89

Install the wheel.

AUTODOC recommends:
Important! Hold the wheel while screwing in the fastening bolts. Seat Leon 1M1
Step 90

Screw in the wheel bolts. Use wheel impact socket #17. Use a ratchet wrench.
Step 91

Lower the car.
Step 92

Tighten the drive shaft nut. Use a drive socket #30. Use a torque wrench. Tighten it to 200 Nm torque.
Step 93

Tighten the wheel bolts using a criss-cross pattern. Use wheel impact socket #17. Use a torque wrench. Tighten it to 120 Nm torque.
Step 94

Remove the jacks and chocks.

Replacement: wheel bearing – Seat Leon 1M1. Tip from AUTODOC experts:
Without starting the engine, press the brake pedal several times until you feel significant resistance.Check the brake fluid level in the expansion tank and top up if necessary.
Step 95

Tighten the brake fluid reservoir cap.
Step 96

Close the bonnet.

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