Brake Lines, Attaching To Hydraulic Unit

On the Brake Master Cylinder:

Courtesy of AUDI OF AMERICA, LLC

A -

Master Brake Cylinder Primary Piston Circuit to Hydraulic Unit

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Identification: 6 mm diameter and pipe fitting with a M12 x 1 thread

B -

Master Brake Cylinder Secondary Piston Circuit to Hydraulic Unit

-

Identification: 6 mm diameter and pipe fitting with a M12 x 1 thread

On the Hydraulic Unit:

Courtesy of AUDI OF AMERICA, LLC

1 -

Hydraulic Unit to Left Front Brake Caliper

-

Identification: 5.25 mm diameter and tube fitting with a M10 x 1 thread

2 -

Hydraulic Unit to Right Front Brake Caliper

-

Identification: 5.25 mm diameter and tube fitting with a M12 x 1 short thread

3 -

Hydraulic Unit to Left Rear Brake Caliper

-

Identification: 5.25 mm diameter and tube fitting with a M12 x 1 short thread

4 -

Hydraulic Unit to Right Rear Brake Caliper

-

Identification: 5.25 mm diameter and tube fitting with a M10 x 1 thread

A -

Hydraulic Unit to Master Brake Cylinder Primary Piston Circuit

-

Identification: 6 mm diameter and pipe fitting with a M12 x 1 thread

B -

Hydraulic Unit to Master Brake Cylinder Secondary Piston Circuit

-

Identification: 6 mm diameter and pipe fitting with a M12 x 1 thread

Tightening Specification

• Refer to OVERVIEW - CONTROL MODULE AND HYDRAULIC UNIT