Overview - Control Module And Hydraulic Unit: Notes

CONTROL MODULE AND HYDRAULIC UNIT 

Fig 1: Exploded View Of Control Module And Hydraulic Unit

Courtesy of AUDI OF AMERICA, LLC

1. Nut
   • 3.8 Nm
2. Bracket
3. Nut
   • 3.8 Nm
4. Rubber Bushing
5. Mounting Bracket
6. Bolt
   • Tighten in two steps alternating from side to side.
   • Step 1: 1 to 1.5 Nm (to install the seal)
   • Step 2: 2.5 Nm
7. ABS Control Module -J104-
   NOTE:

   The transverse and longitudinal acceleration sensors are installed in the ABS Control Module -J104-. The sensors cannot be replaced.

   If the ABS Control Module -J104- is faulty, it can be replaced separately.

   If the ABS Hydraulic Unit -N55- is faulty, it must be replaced together with the ABS Control Module -J104-.

   • Refer to ABS Control Module -J104- /ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING 
   • Can be replaced separately if faulty.
   • Refer to CONTROL MODULE, SEPARATING FROM HYDRAULIC UNIT 
   • Refer to CONTROL MODULE, INSTALLING ON HYDRAULIC UNIT 
8. ABS Hydraulic Unit -N55-
   NOTE:

   If the ABS Control Module -J104- is faulty, it can be replaced separately.

   If the ABS Hydraulic Unit -N55- is faulty, it must be replaced together with the ABS Control Module -J104-.

   • Refer to ABS Control Module -J104- /ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING 
9. Brake Line
   • 14 Nm
   • To the brake caliper
10. Brake Line
    • 14 Nm
    • From brake master cylinder to the hydraulic unit
11. Bolt
    • 25 Nm
12. Bolt
    • 3.8 Nm