Audi A4 Quattro engine misfiring and EPC light issues due to camshaft bracket replacement needed on Audi A4 Quattro

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Audi A4 Quattro owners report experiencing engine misfiring and illuminated EPC lights, which can cause shaking and vibrations in the vehicle. This misfiring may stem from various issues, including problems with the fuel or ignition system, and the EPC light serves as a crucial indicator of potential electronic power control system problems. Additionally, owners have noted that the need for camshaft bracket replacement is often linked to these issues, as a faulty camshaft position sensor can trigger the EPC light. Promptly addressing the camshaft bracket replacement is essential for restoring proper vehicle function. Effective troubleshooting and timely replacement of faulty components are vital for maintaining the performance and reliability of the Audi A4 Quattro, preventing further complications related to misfiring and EPC light concerns.

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