P0304 Code: 2024 Audi A6 – What It Means & Cost to Fix

2024 Audi A6 P0304: Cylinder 4 Misfire Guide

The 2024 Audi A6 continues to deliver executive sedan excellence with refined TFSI powertrains. When a P0304 code appears indicating a cylinder 4 misfire, understanding your configuration helps target effective diagnosis.

Understanding P0304 in Your A6

The 2024 A6 offers the 2.0L turbocharged four-cylinder or 3.0L turbocharged V6 with mild hybrid assist. Cylinder 4 location varies by engine—rear of the inline-4 or rear left bank of the V6. Both use individual coil-on-plug ignition.

New Model Considerations

Misfires on new 2024 models are uncommon and typically indicate manufacturing defects covered under warranty. The proven A6 platform has established reliability, and component failures on new vehicles are exceptions.

Diagnostic Steps

Identify your engine configuration. Access the cylinder 4 ignition coil. Inspect spark plug condition. Verify boost system integrity. Check for software updates.

Resolution Path

Warranty coverage applies to 2024 models. Have your Audi dealer diagnose using factory equipment. Component failures causing P0304 should be covered.

Parts & Tools for This Case

Based on our investigation, these parts may be needed for this repair.

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