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2013 AUDI A6

3.0L Supercharged V6•AWD•AUTOMATIC•gas•supercharged
6 active safety recalls on this vehicle — view recalls
Repairs0Labor1188Torque6374Fluid15DTC1810Battery0Maintenance0Recalls6
P2502high severityPowertrain

Charging System Voltage

on 2013 Audi A6 3.0L Supercharged V6 · AWD

What this code means

The system charging voltage is outside the expected regulation window.

Symptoms

  • Battery light
  • Check engine light
  • Electrical accessories malfunction
  • Battery drains overnight

Common causes

  • Failed alternator
  • Loose drive belt
  • Battery terminal corrosion
  • ECM-controlled charging fault

Diagnostic steps

  1. Check battery voltage engine off and running
  2. Inspect belt tension and condition
  3. Load test alternator
  4. Check battery terminals

Repair notes

Replace alternator or battery. Clean terminals. Check belt.

Other Powertrain codes on this vehicle

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