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) 1.8 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) 2.8, 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 suspension arm on SEAT LEON 1M1 [TUTORIAL AUTODOC]

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

Alternative products

Suspension arm

Replacement: front lower arm – Seat Leon 1M1. Tools you'll need:

                      Wire brush
                    
                      WD-40 spray
                    
                      Brake cleaner
                    
                      Ceramic grease
                    
                      Copper grease
                    
                      Torque wrench
                    
                      Combination spanner #18
                    
                      Combination spanner #19
                    
                      Drive socket # 13
                    
                      Drive socket # 16
                    
                      Drive socket # 18
                    
                      Wheel impact socket #17
                    
                      Ratchet wrench
                    
                      Tap wrench
                    
                      Crow bar
                    
                      Ball joint puller
                    
                      Rubber mallet
                    
                      Hydraulic transmission jack
                    
                      Wheel chock

Buy tools

Replacement: front lower arm – Seat Leon 1M1. AUTODOC experts recommend:

The replacement procedure is identical for the left and right lower control arms.
All work should be done with the engine stopped.

Replacement: front lower arm – Seat Leon 1M1. Take the following steps:

Step 1

Secure the wheels with chocks.

Step 2

Loosen the wheel bolts. Use wheel impact socket #17. Use a tap wrench.
Step 3

Raise the car.

Replacement: front lower arm – Seat Leon 1M1. Tip:
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 4

Unscrew the wheel bolts.

AUTODOC recommends:
To avoid injury, hold up the wheel when unscrewing the bolts.
Step 5

Remove the wheel.
Step 6

Clean the control arm fasteners. Use a wire brush. Use WD-40 spray.
Step 7

Unscrew the fastener connecting the stabilizer link to the control arm. Use a drive socket #16. Use a ratchet wrench.
Step 8

Remove the fastening bolt.
Step 9

Unscrew the fastener connecting the ball joint to the steering knuckle. Use a combination spanner #19.
Step 10

Unscrew the front fastener of the control arm. Use a drive socket #18. Use a ratchet wrench.
Step 11

Unscrew the rear fastener of the control arm. Use a combination spanner #18. Use a drive socket #18. Use a ratchet wrench.
Step 12

Remove the fastening bolts.
Step 13

Remove the fastening nut.
Step 14

Disconnect the ball joint from the steering knuckle. Use a ball joint puller. Use a crowbar.
Step 15

Remove the control arm. Use a crowbar.
Step 16

Clean the suspension arm mounting seats. Use a wire brush. Use WD-40 spray.
Step 17

Install the new control arm. Use a rubber mallet.
Step 18

Install the fastening bolts.
Step 19

Connect the ball joint to the steering knuckle.
Step 20

Install the fastening nut.
Step 21

Support the steering knuckle. Use a hydraulic transmission jack.

Replacement: front lower arm – Seat Leon 1M1. AUTODOC experts recommend:
For tightening the fasteners correctly, you have to jack up the suspension components to their working position.
Step 22

Tighten the fastener connecting the ball joint to the steering knuckle. Use a combination spanner #19. Use a torque wrench. Tighten it to 45 Nm torque.

AUTODOC recommends:
Important! Be sure to use new fasteners.
Step 23

Tighten the front fastener of the arm. Use a drive socket #18. Use a torque wrench. Tighten it to 70 Nm torque.+90°

Replacement: front lower arm – Seat Leon 1M1. AUTODOC recommends:
Important! Be sure to use new fasteners.
Step 24

Tighten the rear fastener of the control arm. Use a combination spanner #18. Use a drive socket #18. Use a torque wrench. Tighten it to 70 Nm torque.+90°

AUTODOC recommends:
Important! Be sure to use new fasteners.
Step 25

Remove the support from under the steering knuckle.

Replacement: front lower arm – Seat Leon 1M1. Professionals recommend:
Lower the hydraulic transmission jack smoothly, without jerks, to avoid damaging assemblies and mechanisms.
Step 26

Install the fastening bolt.
Step 27

Tighten the fastener connecting the sway bar link to the suspension arm. Use a drive socket #16. Use a torque wrench. Tighten it to 30 Nm torque.

AUTODOC recommends:
Important! Be sure to use new fasteners.
Step 28

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: front lower arm – Seat Leon 1M1. Tip from AUTODOC experts:
Important! Be sure to use new fasteners.
Step 29

Treat all joints of the arm. Use copper grease.

Step 30

Clean the wheel rim mounting seat. Use a wire brush.
Step 31

Treat the surface where the brake disc contacts the wheel rim. Use ceramic grease.
Step 32

Clean the brake disk surface. Use a brake cleaner.
Step 33

Install the wheel.

AUTODOC recommends:
Important! Hold the wheel while screwing in the fastening bolts. Seat Leon 1M1
Step 34

Screw in the wheel bolts. Use wheel impact socket #17. Use a ratchet wrench.
Step 35

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 120 Nm torque.
Step 36

Remove the jacks and chocks.

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 SEAT Leon I Hatchback (1M1) model

Seat Leon 1m1 tyre size

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

Free download PDF
4.23 MB
How to change track rod end on Seat Leon 1M1 – replacement guide

Free download PDF
1.43 MB
How to change rear wheel bearing on Seat Leon 1M1 – replacement guide

Free download PDF
2.78 MB
How to change front strut mount on SEAT Leon Hatchback (1M1) – replacement guide

Free download PDF
2.8 MB
How to change front ball joint on SEAT Leon Hatchback (1M1) – replacement guide

Free download PDF
1.4 MB
How to change front anti roll bar links on SEAT Leon Hatchback (1M1) – replacement guide

Free download PDF
634.88 KB

How to change front lower arm on SEAT Leon Hatchback (1P1) – replacement guide

Free download PDF
1.9 MB
How to change rear suspension lower control arm on SEAT Leon Hatchback (1P1) – replacement guide

Free download PDF
1.63 MB
How to change rear suspension lower trailing arm on SEAT Leon Hatchback (1P1) – replacement guide

Free download PDF
1.67 MB
How to change control arm on a car – replacement tutorial

Universal

Free download PDF
1.07 MB
How to change rear suspension lower trailing arm on SEAT Altea XL (5P5, 5P8) – replacement guide

Free download PDF
1.67 MB
How to change rear suspension lower trailing arm on SEAT Alhambra (710, 711) – replacement guide

Free download PDF
1.66 MB

Unlock your car maintenance assistant!

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

Coolant comparison test | AUTODOC

14K views

Published on: 18/02/2021
#DIY Guide: How to Fix a Cracked Windscreen Without a Garage Visit

8K views

Published on: 14/12/2023
The Fast and Easy Way to Fix a Broken Wheel Stud | AUTODOC tips

9K views

Published on: 08/12/2020
Deep interior cleaning | Car transformation by detailing

7K views

Published on: 05/09/2024