# Mercedes Cam Plugs

**URL:** <https://community.cartalk.com/t/mercedes-cam-plugs/54931>\
**Category:** Maintenance/Repairs\
**Tags:** sparkplugs, mercedes-benz, s-class\
**Created:** [September 10, 2010, 7:59pm UTC](https://community.cartalk.com/t/mercedes-cam-plugs/54931 "2010-09-10T19:59:54Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![johndh](https://avatars.discourse-cdn.com/v4/letter/j/4da419/32.png) [@johndh](https://community.cartalk.com/u/johndh)\
**Post date:** [September 10, 2010, 7:59pm UTC](https://community.cartalk.com/t/mercedes-cam-plugs/54931/1 "2010-09-10T19:59:54Z")

</div>

My Mercedes dealer discovered that all three cam plugs were leaking on my 2008 Mercedes S550 and replaced them under warranty. What are cam plugs, other than a source of income for the dealer?