Audi A6 Quattro intermittent starting issue with no signs of battery or alternator failure on Audi A6 Quattro

Submitted by AudiA6Quattro · Jun 23, 2025
Published by RepairPal

Problem overview

Some Audi A6 Quattro owners report experiencing intermittent starting issues despite having no signs of battery or alternator failure. These problems may stem from a faulty starter motor, which can produce clicking sounds or fail to engage properly when starting the vehicle. Additionally, some owners find that a weak key fob can lead to inconsistent starting, as the signal may not be properly received by the car. Engine-related issues, including fuel system or ignition system failures, are also cited as potential causes of the starting problem. Furthermore, pump failures, such as a malfunctioning fuel pump, can prevent the engine from receiving adequate fuel, resulting in unreliable starting. It is advisable for owners experiencing these issues to have their vehicles inspected by a qualified mechanic or dealership for accurate diagnosis and necessary repairs.

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Audi A6 Quattro vehicles with this problem

1 model year affected
Average mileage: 89,500 miles
(89,500 - 89,500)

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