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HOMESERVICE MANUALSAUDI1996A4 BASE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)STEERINGPOWER STEERINGSTEERING SYSTEM - POWERSYSTEM TESTINGPOWER STEERING PUMP TEST2.8L V6 (ENGINE CODES AFC, AHA & ATQ)
1996 Audi A4 Base, Standard

2.8L V6 (Engine Codes AFC, AHA & ATQ)

1996 Audi A4 Base, StandardSECTION 2.8L V6 (Engine Codes AFC, AHA & ATQ)
  1. Unclip top engine cover and remove. Unbolt ribbed belt cover. Pinch off suction hose, using 3094 hose clamp. See Figure . Press spring clip and disconnect harness connector from fuel injector. Counter-hold at hex on flexible hose and remove supply line from flexible hose.
  2. On vehicles with 2.8L V6 (AFC) engine, screw VAG1402/3 adapter into power steering pump in place of flexible hose.
  3. On vehicles with 2.8L V6 (AHA & ATQ) engine, counter-hold at hex on flexible hose and remove supply line from flexible hose.
  4. On both engines, screw VAG1402 pressure gauge hose VAG1402/3 adapter. Close pressure gauge shut-off valve (lever positioned toward left). See Figure . Reconnect fuel injector harness connector. Remove hose clamp from suction hose.
    5. NOTE: DO NOT measure pressure for longer than 10 seconds while engine is running.
  5. Start engine and top off fluid in reservoir (if necessary). Measure pressure reading at idle speed. Specified value should be 1595-1740 psi (110-120 bar).
  6. If specified value is not attained, check hydraulic fluid level. See FLUID LEVEL CHECK  under LUBRICATION. Check steering system for leaks. Bleed steering system. See STEERING SYSTEM BLEEDING  under BLEEDING. If necessary, replace steering pump. See POWER STEERING PUMP  under REMOVAL & INSTALLATION.
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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.