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2012 AUDI A6
3.0L V6 TFSI•AWD•AUTOMATIC•gas•CCBA•supercharged
8 active safety recalls on this vehicle — view recalls
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Repairs0Labor508Torque4382Fluid10DTC1126Battery1Maintenance0Recalls8
P3045critical severityPowertrain

DCT Hydraulic Pump Pressure Low

on 2012 Audi A6 3.0L V6 TFSI · AWD

What this code means

The DCT hydraulic pump is not generating sufficient pressure for clutch actuation and gear selection.

Symptoms

  • Check Engine Light
  • Slow gear changes
  • Clutch slip during shifts
  • No drive in any gear
  • Transmission warning light
  • Creep function loss in stop-and-go

Common causes

  • Worn hydraulic pump
  • Low hydraulic fluid level
  • Internal seal leak
  • Pressure accumulator failure
  • Clogged hydraulic filter

Diagnostic steps

  1. Check hydraulic fluid level
  2. Read system pressure PID
  3. Test pump motor operation
  4. Inspect accumulator charge pressure
  5. Check for external fluid leaks

Repair notes

Replace hydraulic pump or repair internal leaks. Replace accumulator if pressure does not hold.

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