Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSAUDI2025A4 QUATTRO PRESTIGEREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESTRACTION CONTROLANTILOCK BRAKE SYSTEM45 ANTILOCK BRAKE SYSTEMCONTROL MODULE AND HYDRAULIC UNITABS CONTROL MODULE -J104- / ABS HYDRAULIC UNIT -N55-, REMOVING AND INSTALLINGNOTES
2025 Audi A4 Quattro Prestige
ABS Control Module -J104- / ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING: Notes
2025 Audi A4 Quattro PrestigeSECTION Notes
Component location. Refer to COMPONENT LOCATION OVERVIEW - ABS/ESP .
Special tools and workshop equipment required
- Vehicle Diagnostic Tester
- Brake Pedal Actuator:V.A.G 1869/2 .
- Collection bottle from the Bleeding Equipment:VAS 6860 or Brake Charger/Bleeder Unit Brake Charger/Bleeder Unit:VAS 5234
- Plug from the Repair Kit:1H0 698 311 A M10 -2- and M12 -3-
- Plugs from the Assembly Part Set:5Q0 698 311 : M10 -1- and M12 -2-
- Safety Gloves
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.
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.