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How to Replace the Door Lock on an Audi A4 B8

Model: Audi A4 B8 - Years: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
Part: Door lock

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Video tutorial

If the interior lights stay on when the doors are closed or if one of the locks does not engage, then the door lock is damaged: it is a fairly complex mechanism that includes not only the actuator motor but also a series of linkages and springs, along with micro switches that signal the opening and closing of the lock.

You could attempt to repair it, but a new aftermarket lock costs about $40, so it is recommended to replace it. This operation obviously requires removing the door panel (the mounting screws are located under the upper trim and behind the central handle cover).


Updated on 28 February 2026 by ScegliAuto


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by ScegliAuto

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