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Home >> Audi >> 2025 >> S6 Premium >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (Antilock Brake System) >> 45 Antilock Brake System >> Control Module And Hydraulic Unit >> Overview - Control Module And Hydraulic Unit >> Control Module And Hydraulic Unit; Vehicle With Vacuum Brake Booster Is Shown

Control Module And Hydraulic Unit; Vehicle With Vacuum Brake Booster Is Shown

WARNING: This page is about a different car, the 2025 Audi SQ5 Sportback, 2025 Audi SQ5, 2025 Audi Q5 e, 2025 Audi Q5 Sportback, and 2025 Audi Q5. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Control Module And Hydraulic Unit Components (Vehicle With Vacuum Brake Booster)
GWWA45-10393Courtesy of AUDI OF AMERICA, LLC
  1. Bolt
    • 25 Nm
  2. Mounting Bracket
  3. Spacer Sleeve
  4. Nut
    • 8 Nm
  5. ABS Hydraulic Unit -N55-
    • 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-.
  6. Brake Line
    • From brake master cylinder to the hydraulic unit
    • Do not change the bending shape.
    • Replace a damaged or bent brake line
    • 16 Nm
  7. Brake Line
    • From brake master cylinder to the hydraulic unit
    • Do not change the bending shape.
    • Replace a damaged or bent brake line
    • 16 Nm
  8. Brake Line
    • To the brake caliper
    • Do not change the bending shape.
    • Replace a damaged or bent brake line
    • 14 Nm
  9. ABS Control Module -J104-
    • 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-.
  10. Bolt
    • Tighten in two steps alternating from side to side.
    • 1. Step: 1 to 1.5 Nm (to position the seal)
    • 2. Step: 2.5 Nm
  11. Rubber Bushing
    • Quantity: 3