Audi A8 Quattro noisy exhaust due to expected flex pipe leak replacement costing around 1000 on Audi A8 Quattro

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

Problem overview

Some Audi A8 Quattro owners report experiencing issues with noisy exhausts likely caused by flex pipe leaks, with replacement costs estimated around $1000. These owners note that the average cost for exhaust pipe replacement typically ranges between $1,660 and $1,718. Additionally, some have found that repairing a damaged flex pipe can cost about $400 if the entire pipe needs replacement. The costs for flex pipe repairs can vary significantly based on state regulations, the vehicle's specifications, and the repair location. Signs of a failing flex pipe include loud noises, a hanging or dragging pipe, leaking fumes, and an illuminated Check Engine Light. Given these considerations, the reported replacement cost appears reasonable in light of the average expenses associated with exhaust flex pipe repairs.

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