SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSAUDI2018A5 QUATTRO PRESTIGE, 2D CONVERTIBLEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 272 (ANTILOCK BRAKE SYSTEM (2 OF 2))45 ANTILOCK BRAKE SYSTEMCONTROL MODULE AND HYDRAULIC UNITCONTROL MODULE, SEPARATING FROM HYDRAULIC UNIT
2018 Audi A5 Quattro Prestige, 2D Convertible

Control Module, Separating From Hydraulic Unit

2018 Audi A5 Quattro Prestige, 2D ConvertibleSECTION Control Module, Separating From Hydraulic Unit
WARNING: This page is about a different car, the 2022 Audi A4 allroad, 2021 Audi A4 allroad, and 2020 Audi A4 allroad. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required 

  • ESD Work Surface :VAS6613 
  • The ABS Hydraulic Unit -N55- with the ABS Control Module -J104- must be removed in order to separate the control module and the hydraulic unit.
  • The return flow pump must not be separated from the ABS Hydraulic Unit -N55-.

Procedure 

-- Remove the hydraulic control unit. Refer to ABS Control Module -J104- /ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING .

CAUTION:

There is a risk of destroying the control module through the electrostatic charge and reduced cleanliness.

- Discharge electrostatic charge: touch the electro-static discharge work surface

- Protect the inner control module from moisture and dirt.

-- Place the hydraulic unit with the control module on the ESD Work Surface :VAS6613  .

  • The control module -2- faces upward and the hydraulic unit -4- with the pump motor and connector -3- faces down.
    Fig 1: Identifying Hydraulic Unit
    GWWA45-10118Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -1- and dispose of them.

-- Carefully remove the control module vertically upward without tilting.

  • Blowing the control module or hydraulic unit out with compressed air is not permitted.
  • The valve bodies inside the hydraulic unit must not be damaged or bent.

-- Cover the open hydraulic unit with a lint-free cloth.

-- Check the hydraulic unit sealing surface, and if necessary, clean with mineral spirits and a lint-free cloth.

-- A damaged sealing surface must not be mechanically reworked. A hydraulic unit with a damaged sealing surface must be replaced.

CAUTION:

Risk of damaging the control module due to improper handling.

- Do not remove or lift the seal.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.