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2005-2011 AUDI A6
4.2L V8•AWD•AUTOMATIC•gas•BAT
5 active safety recalls on this vehicle — view recalls
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Repairs0Labor504Torque2218Fluid10DTC1868Battery1Maintenance0Recalls5
P0482moderate severityPowertrain

Cooling Fan 3 Control Circuit

on 2005-2011 Audi A6 4.2L V8 · AWD

What this code means

The PCM has detected a fault in the control circuit for cooling fan 3. This may reduce cooling performance and lead to overheating under load.

Symptoms

  • Engine overheating
  • Cooling fan 3 not operating
  • Poor AC cooling

Common causes

  • Faulty cooling fan relay
  • Damaged wiring or connector
  • Failed cooling fan motor
  • Faulty PCM

Diagnostic steps

  1. Scan for related codes
  2. Inspect fan 3 wiring and connectors
  3. Test fan 3 relay operation
  4. Check fan motor and PCM output
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