Brake Lines, Repairing: Instructions

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Audi S6, 2018 Audi A6 Quattro, 2018 Audi A6, 2017 Audi S6, and 2017 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the affected brake line at brake caliper or brake cylinder and collect escaping brake fluid and dispose of it correctly.

-- Disconnect the brake line at appropriate location (straight, accessible part) with the pipe cutter -2-.

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-- Remove the piece to be exchanged.

-- Grease the brake line surface.

-- Clamp the brake line in self-grip pliers -4- so that 50 mm of the plastic clamping jaws show.

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-- Clamp the shearing tool -3- in a drill and place it on the brake line.

-- Shear the coating from the brake line at a slow drill RPM and with light pressure against the line.

The length of the sheared-off portion is determined by the stop in the shearing tool.

-- Remove the shearing tool from the brake line and remove the shearing remains.

-- Remove locking pliers and union bolt -D- from brake line.

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-- Slide the brake line -B- against the stop -A- in the flaring tool.

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NOTE:

The brake line must contact the stop when tightening the hex socket bolts, otherwise the flanged head will not be formed correctly.

C - Long reach special wrench

-- Pretension the brake line inside the flaring unit until the brake line can no longer be moved. Fold stop -A- up and tighten hex socket head screws diagonally with long reach special wrench.

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-- Turn the spindle until it stops in the flaring tool.

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-- Turn the spindle back.

-- Loosen the hex socket bolts diagonally.

-- Remove the brake line from the flaring tool, clean and check the brake line and the flared head.

-- Quickly rinse the part of the brake line still in the vehicle by connecting the Brake Charger/Bleeder Unit :VAS5234 .

-- Connect the container hose to the flared head of the brake line and let the Brake Charger/Bleeder Unit :VAS5234 run briefly until some brake fluid runs through.

-- Clean the new brake line to be inserted with compressed air.

-- Join the brake lines with the connecting piece -E-.

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-- Assemble the brake line.

-- Then bleed the brake system. Refer to HYDRAULIC SYSTEM, BLEEDING .

NOTE:

It must be bled on each bleeder screw. Bleed the brake caliper with two bleed screws first on the inner screw.