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crwdns2944351:0crwdnd2944351:0Repairing Mercedes W123 Door Lock Master Vacuum Switchcrwdnd2944351:0crwdne2944351:0

crwdns2933797:0Nicolas Siemsencrwdnd2933797:0crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Nicolas Siemsen

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Introduction
When the master vacuum switch on your door lock system begins to leak it can prevent the lock side, the unlock side, or even both sides from properly functioning. You can replace it with a new part but it is fairly expensive for such a simple device.
To that end, this guide will help you to attempt a repair before springing for the replacement part.
Guide credit goes to Nick K., anda helpful member over on the BenzWorld forums. He graciously agreed to provide the content for this guide.