Recommended replacement interval for the part category Brake pad set : 30000 km

Important!

This replacement procedure can be used for:
BMW 8 (E31) 850 i, Ci, BMW 8 (E31) 850 Ci, BMW 8 (E31) 850 CSi, BMW 8 (E31) 840 Ci … View more

The steps may slightly vary depending on the car design.

This video shows the replacement procedure of a similar car part on another vehicle

All the parts you need to replace – Brake Pads for 8 (E31) and other BMW models

Brake pad set

        Brake pad set for BMW 8 (E31) 850 i, Ci Petrol (300 hp)
      
        Brake pad set for BMW 8 (E31) 850 Ci Petrol (326 hp)
      
        Brake pad set for BMW 8 (E31) 850 CSi Petrol (380 hp)
      
        Brake pad set for BMW 8 (E31) 840 Ci Petrol (286 hp)

Replacement: brake pads – BMW 8 (E31). AUTODOC experts recommend:

                        Wire brush
                      
                        Nylon cleaning brush
                      
                        Brake cleaner 
                      
                        Copper grease 
                      
                        Anti-squeal paste
                      
                        Torque wrench
                      
                        HEX bit No.H7
                      
                        Wheel impact socket #17
                      
                        Brake caliper wind back tool
                      
                        Ratchet wrench
                      
                        Round-nose pliers
                      
                        Crow bar
                      
                        Wheel chock

Buy tools

Replacement: brake pads – BMW 8 (E31). Professionals recommend:

Perform the replacement of brake pads in complete set for each axis. This provides effective braking.
The replacement procedure is identical for all brake pads on the same axle.
All work should be done with the engine stopped.

Replacement: brake pads – BMW 8 (E31). Recommended sequence of steps:

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 rear 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. BMW 8 (E31)
Step 6

Remove the wheel.
Step 7

Remove the dust boot caps of the brake caliper guide pins. Use a crowbar.
Step 8

Unscrew the brake caliper fastening. Use HEX No.H7. Use a ratchet wrench.
Step 9

Disconnect the brake pads wear sensor. Use round-nose pliers.
Step 10

Detach the brake caliper retaining spring. Use a crowbar.
Step 11

Spread the brake pads. Use a crowbar.
Step 12

Remove the brake caliper.

Replacement: brake pads – BMW 8 (E31). Tip from AUTODOC experts:
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 13

Remove the brake pads.

Replacement: brake pads – BMW 8 (E31). AUTODOC recommends:
Measure the brake disc thickness. Upon reaching the wear limit the part must be replaced.
Step 14

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

AUTODOC recommends:
Replacement: brake pads – BMW 8 (E31). After applying the spray, wait a few minutes.
Step 15

Treat the brake caliper piston. Use a nylon cleaning brush. Use a brake cleaner.

AUTODOC recommends:
After applying the spray, wait a few minutes.
Step 16

Press in the brake caliper piston. Use brake caliper wind back tool.
Step 17

Treat the brake pads in the area where their surface comes into contact with the brake caliper bracket. Use anti-squeal paste.

Replacement: brake pads – BMW 8 (E31). AUTODOC recommends:
Make sure the disc surface is clean before installing the pads.
Step 18

Install new brake pads.

Replacement: brake pads – BMW 8 (E31). Tip from AUTODOC experts:
Make sure the pads are installed with linings facing the disc.
Step 19

Install the brake caliper and fix it.
Step 20

Install the brake caliper retaining spring.
Step 21

Tighten the brake caliper fasteners. Use HEX No.H7. Use a torque wrench. Tighten it to 30 Nm torque.
Step 22

Install the dust boot caps of the brake caliper guide pins.
Step 23

Connect the brake pads wear sensor. Use round-nose pliers.
Step 24

Clean the wheel rim mounting seat. Use a wire brush.
Step 25

Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 26

Clean the brake disk surface. Use a brake cleaner.

AUTODOC recommends:
Replacement: brake pads – BMW 8 (E31). After applying the spray, wait a few minutes.
Step 27

Install the wheel.

AUTODOC recommends:
Warning! To avoid injury, hold the wheel while screwing in the fastening bolts on the car. BMW 8 (E31)
Step 28

Screw in the wheel bolts. Use wheel impact socket #17.
Step 29

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 140 Nm torque.
Step 30

Remove the jacks and chocks.

Replacement: brake pads – BMW 8 (E31). Professionals recommend:
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 refill if necessary.
Step 31

Tighten the brake fluid reservoir cap. Close the hood.

Replacement: brake pads – BMW 8 (E31). AUTODOC recommends:
Slow down smoothly for first 150-200 km after the brake pads replacement. Avoid unneccessary and sharp braking to a stop.

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.

How to change front brake pads on BMW 8 (E31) – replacement guide

Free download PDF
1.98 MB
How to change front wheel bearing on BMW 8 (E31) – replacement guide

Free download PDF
2.07 MB
How to change spark plugs on BMW 8 (E31) – replacement guide

Free download PDF
2.6 MB
How to change engine oil and filter on BMW 8 (E31) – replacement guide

Free download PDF
1.79 MB
How to change fuel filter on BMW 8 (E31) – replacement guide

Free download PDF
2.15 MB
How to change right engine mounts on BMW 8 (E31) – replacement guide

Free download PDF
2.52 MB

How to change front brake pads on BMW 8 (E31) – replacement guide

Free download PDF
1.98 MB
How to change brake pads on a car – replacement tutorial

Universal

Free download PDF
2.84 MB
How to change front brake pads on BMW E90 – replacement guide

Free download PDF
1.7 MB
How to change rear brake pads on BMW E92 – replacement guide

Free download PDF
1.99 MB
How to change rear brake pads on BMW X3 E83 – replacement guide

Free download PDF
1.64 MB
How to change rear brake pads on BMW E90 – replacement guide

Free download PDF
1.58 MB

Your profile is your personal assistant.

It can track car expenses, keep a car log and replacement schedule, and save favourite materials, notes and documents

Install the AUTODOC CLUB app!

Your personal car expenses manager, maintenance tips, reminders about upcoming appointments and service intervals, DIY repair instructions – all this on your phone.

Scan

To download the app:

- scan the QR code
- download from App Store
- download from Google Play

How and why to check your oil | AUTODOC tips

5K views

Published on: 23/02/2023
How to fix your car with AUTODOC CLUB

16K views

Published on: 30/11/2021
DIY jack restoration | AUTODOC tips

12K views

Published on: 22/09/2022
What to do if the belt squeals | AUTODOC tips

4K views

Published on: 04/03/2021