Mercedes-Benz A W168 User manual

How to replace the front brake hose
on MERCEDES-BENZ A W168
VIDEO TUTORIAL
This replacement procedure can be used for:
MERCEDES-BENZ A-CLASS (W168) A 140 (168.031, 168.131), MERCEDES-BENZ
A-CLASS (W168) A 160 (168.033, 168.133)
The steps may slightly vary depending on the car design.
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Important!

REQUIRED TOOLS:
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Wire brush
WD-40 spray
Brake cleaner
Copper grease
Combination spanner #11
Combination spanner #14
Wheel impact socket #17
Torque wrench
Fluid container
Brake bleeder kit
Wheel chock

AUTODOC recommends:
CARRY OUT REPLACEMENT IN THE FOLLOWING ORDER:
1
Open the bonnet. Unscrew the brake fluid reservoir cap.
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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.

2
Secure the wheels with chocks.
3
Loosen the wheel mounting bolts. Use wheel impact socket #17.
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4
Raise the front of the car and secure on supports.
5
Unscrew the wheel bolts.
AUTODOC recommends:
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To avoid injury, hold up the wheel when unscrewing the bolts.

6
Remove the wheel.
7.1
Clean the area where the brake hose is connected to the brake caliper and to the brake
circuit pipe.
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7.2
Use a wire brush. Use WD-40 spray.
8
Detach the fastener connecting the ABS sensor cable to the shock strut.
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9
Put a container for gathering brake fluid beneath.
10
Unscrew the fastener connecting the brake hose to the brake circuit pipe. Use a combination
spanner #11.
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11
Unscrew the brake hose from the brake caliper. Use a combination spanner #14.
12
Remove the brake hose.
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13
Screw the new brake hose onto the brake caliper.
14
Tighten the fastener connecting the brake pipe to the brake caliper. Use a combination
spanner #14. Use a torque wrench. Tighten it to 26 Nm torque.
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