How to change front brake hose on BMW 3 Saloon (E46) – replacement guide
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Recommended replacement interval for the part category Brake hose : 50000km
Important!
This replacement procedure can be used for:
BMW 3 Saloon (E46) 318 i,
BMW 3 Saloon (E46) 328 i,
BMW 3 Saloon (E46) 320 d,
BMW 3 Saloon (E46) 323 i,
BMW 3 Saloon (E46) 320 i,
BMW 3 Saloon (E46) 316 i,
BMW 3 Saloon (E46) 330 d,
BMW 3 Saloon (E46) 330 xd,
BMW 3 Saloon (E46) 330 xi,
BMW 3 Saloon (E46) 330 i,
BMW 3 Saloon (E46) 320 i,
BMW 3 Saloon (E46) 325 i,
BMW 3 Saloon (E46) 325 xi,
BMW 3 Saloon (E46) 316 i,
BMW 3 Saloon (E46) 318 i,
BMW 3 Saloon (E46) 320 d,
BMW 3 Saloon (E46) 318 d,
BMW 3 Saloon (E46) 316 i,
BMW 3 Saloon (E46) 330 d,
BMW 3 Saloon (E46) 330 xd,
BMW 3 Saloon (E46) 318 d,
BMW 3 Saloon (E46) 316 i,
BMW 3 Saloon (E46) 320 d,
BMW 3 Saloon (E46) 330 i,
BMW 3 Saloon (E46) 318 i,
BMW 3 Saloon (E46) 320 i,
BMW 3 Saloon (E46) 323 i
…
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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 Hose for 3 Saloon (E46) and other BMW models
Replacement: brake hose – BMW 3 (E46). AUTODOC experts recommend:
The replacement procedure is identical for the right and left brake hoses on the same axle.
All work should be done with the engine stopped.
Replacement: brake hose – BMW 3 (E46). Use the following procedure:
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:
Important! Hold the wheel while unscrewing the fastening bolts. BMW 3 (E46)
Step 6
Remove the wheel.
Step 7
Clean the area where the brake hose is connected to the brake caliper and to the brake circuit pipe. Use a wire brush. Use a brake cleaner.
Replacement: brake hose – BMW 3 (E46). Tip:
After applying the spray, wait a few minutes.
Step 8
Put a container for gathering brake fluid beneath.
Step 9
Loosen the brake hose fastening. Use a combination spanner #14. Use a ratchet wrench.
Step 10
Detach the brake hose from the shock strut.
Step 11
Unscrew the fastener connecting the brake hose to the brake circuit pipe. Use a combination spanner #10.
Step 12
Unscrew the brake hose from the brake caliper.
Step 13
Screw the new brake hose onto the brake caliper.
Step 14
Fasten the brake hose on the strut.
Step 15
Screw the brake hose onto the brake circuit pipe.
Step 16
Tighten the fastener connecting the brake pipe to the brake caliper. Use a combination spanner #14. Use a torque wrench. Tighten it to 22 Nm torque.
Step 17
Tighten the fastener connecting the brake hose to the brake circuit pipe. Use a combination spanner #10. Use a torque wrench. Tighten it to 14 Nm torque.
Step 18
Clean the brake hose mounting seat on the brake circuit pipe. Use a brake cleaner.
AUTODOC recommends:
Replacement: brake hose – BMW 3 (E46). After applying the spray, wait a few minutes.
Step 19
Undo the brake bleeder screw. Use a combination spanner #8.
Step 20
Connect the brake bleeder kit to the brake bleeder screw.
Step 21
Press the brake pedal several times to remove any air from the system.
Step 22
Tighten the brake bleeder screw. Use a combination spanner #8.
Step 23
Disconnect the brake bleeder kit.
Step 24
Clean dirt from the brake hose bolt. Use a brake cleaner.
Replacement: brake hose – BMW 3 (E46). AUTODOC recommends:
After applying the spray, wait a few minutes.
Step 25
Clean the brake disk surface. Use a wire brush. Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 26
Install the wheel.
Replacement: brake hose – BMW 3 (E46). Tip from AUTODOC experts:
To avoid injury, hold up the wheel when screwing in the fastening bolts.
Step 27
Screw in the wheel bolts. Use wheel impact socket #17.
Step 28
Lower the car and working in a cross order, tighten the wheel bolts. Use a torque wrench. Tighten it to 120 Nm torque.
Step 29
Remove the jacks and chocks.
Step 30
Check the brake fluid level in the expansion tank and refill if necessary.
Step 31
Tighten the brake fluid reservoir cap. Close the hood.
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