How to change front brake pads on BMW E90 – replacement guide
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Recommended replacement interval for the part category Brake pad set : 30000km
Important!
This replacement procedure can be used for:
BMW 3 Saloon (E90) 320 i,
BMW 3 Saloon (E90) 318 d,
BMW 3 Saloon (E90) 318 d,
BMW 3 Saloon (E90) 316 i,
BMW 3 Saloon (E90) 316 d,
BMW 3 Saloon (E90) 320 i,
BMW 3 Saloon (E90) 318 i
…
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The steps may slightly vary depending on the car design.
How to change front brake discs and front brake pads on BMW 3 E90 TUTORIAL | AUTODOC
All the parts you need to replace – Brake Pads for 3 Saloon (E90) and other BMW models
Replacement: brake pads – BMW E90. Tip from AUTODOC experts:
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.
Please note: all work on the car – BMW E90 – 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. BMW E90
Step 6
Remove the wheel.
Step 7
Detach the brake caliper retaining spring. Use a flat screwdriver.
Step 8
Remove the dust boot caps of the brake caliper guide pins. Use a flat screwdriver.
Step 9
Spread the brake pads. Use a crowbar.
Step 10
Clean the brake caliper fasteners. Use a wire brush. Use WD-40 spray.
Step 11
Unscrew the brake caliper fastening. Use HEX No.H7. Use a ratchet wrench.
Step 12
Remove the brake caliper.
Replacement: brake pads – BMW E90. AUTODOC recommends:
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 E90. Tip:
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 E90. After applying the spray, wait a few minutes.
Step 15
Treat the brake caliper piston. 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 E90. Tip:
Make sure the disc surface is clean before installing the pads.
Step 18
Install new brake pads.
Replacement: brake pads – BMW E90. AUTODOC recommends:
Make sure the pads are installed with linings facing the disc.
Step 19
Install the brake caliper and fix it. Use HEX No.H7. Use a torque wrench. Tighten it to 30 Nm torque.
Step 20
Install the dust boot caps of the brake caliper guide pins.
Step 21
Install the brake caliper retaining spring. Use a flat screwdriver.
Step 22
Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 23
Clean the brake disk surface. Use a brake cleaner.
AUTODOC recommends:
Replacement: brake pads – BMW E90. After applying the spray, wait a few minutes.
Step 24
Install the wheel.
AUTODOC recommends:
Warning! To avoid injury, hold the wheel while screwing in the fastening bolts on the car. BMW E90
Step 25
Screw in the wheel bolts. Use wheel impact socket #17.
Step 26
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.
Replacement: brake pads – BMW E90. AUTODOC recommends:
Without starting the engine, press the brake pedal several times until you feel significant resistance.
Step 27
Remove the jacks and chocks.
Replacement: brake pads – BMW E90. Tip from AUTODOC:
Check the brake fluid level in the expansion tank and refill if necessary.
Step 28
Tighten the brake fluid reservoir cap. Close the hood.
Replacement: brake pads – BMW E90. AUTODOC recommends:
Slow down smoothly for first 150-200 km after the brake pads replacement. Avoid unneccessary and sharp braking to a stop.
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