Summary
The Audi A6 has 42 recalls spanning 1994 through 2026 model years, with the most serious recent issue being a fire risk on 2019-2020 mild-hybrid models with 2.0T engines where moisture can enter the starter generator and cause an electrical short circuit.
Several other recalls affect recent production. On 2019-2026 vehicles, a software error can prevent the rearview camera image from appearing when reversing. The 2019-2022 model years have a fuel level sender that can stick and display an inaccurate reading, potentially causing the engine to stall without warning. On 2019 models specifically, an instrument panel cover problem can prevent the front passenger airbag from inflating properly in a crash and can send plastic fragments toward occupants. The 2021-2022 model years have a rear seatbelt retractor issue that can prevent a child safety seat from being secured properly.
Going back to the prior generation, 2012-2018 models have a passenger seat occupant detection mat that can wear and cause the front passenger airbag to fail in a crash. Several 2012-2017 models have a coolant pump that can block or short-circuit, raising fire risk. Fuel line issues appear across 2012-2014 production, where lines can weaken at a compression point or degrade and leak fuel near ignition sources. The 2012 model year also has a curtain airbag with potentially improper stitching that may fail to deploy in a crash. On 2007 and 2006 models, a loss of pressure in a rear lid strut can cause the power tailgate to slam shut without warning.
The 2005 model year has a Takata-type passenger frontal airbag issue where long-term humidity and heat exposure can degrade the propellant, causing the airbag to deploy with excessive force. On 2003 vehicles with 3-spoke sport steering wheels, the driver's airbag igniter may have been improperly assembled and can fail to deploy in a crash. The 2001-2004 model years share a fuel tank rollover valve that can crack over time on multiple engine variants and leak fuel, creating fire risk.
Earlier production from 1998-1999 carries tie rod seal failures that allow moisture and debris into the steering swivel bearing, causing looseness and reduced steering control over time. Multiple 1998 model year issues include headlight switch wiring that can short and start a dashboard fire, a throttle that can freeze in extreme cold and cause the engine to hold speed even after the driver lifts off the accelerator, and a mismatched fuel filler neck that can allow fuel to escape. The 1997 model has a brake booster control valve that can fail in very cold weather and reduce power brake assist. The earliest recall, affecting 1994 models, covers ignition switches that can cause accessories including turn signals, wipers, and lights to malfunction when starting the engine.