Audi A4 B6 Voltage Regulator Replacement (2002-2008 If your battery appears to be leaking, then your voltage regulator has probably failed. The battery will usually only leak acid if it has been overcharged at a much higher voltage. If the voltage measured at the battery is more than 14.5 volts when the engine is running, then the voltage regulator 2002 AUDI A4 3 V6 Alternator / Generator | RockAuto AUDI: 2002: A4: 3 V6: Electrical: Alternator / Generator: Choose for Me to Minimize Cost Electrical Repair Manual. Pulley Tool. Voltage Regulator AUDI 2002 A4 3 V6 Electrical Alternator / Generator. Price: Core: Total: Alternate: No parts for vehicles in selected markets.
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