Had the lights upgraded to LED (LasFit) and once the front turn signal bulbs were installed, the turn signals and hazard lights wouldn't work.
The mechanic figured out if you hold the hazard switch down, it doesn't engage/click or light up, but, the turn signals work. I need a new Hazard switch button, and if anyone has one handy/spare, etc., please let me know.
There are an Audi and a VW Hazard switch that come up in a search on MB and Star Parts and even FCP Euro using a search on 03 SLK320. Mostly, the part is no longer made, it seems.

I just imagine some Benz engineer saying, Ya, connecting the hazard lights and the turn signals so if one part fails, the whole other part fails, makes sense.
Thanks in advance.

 

Here is what you are looking for: https://www.worldpartsdirect.com/oem...Y2LWdhcw%3D%3D

And this is a listing on eBay: https://www.ebay.com/itm/205155047006?_skw=Hazard+Warning+Switch+-+Mopar+%285102614AA%29+%7C+2004-2008+Chrysler&epid=19020632695&itmmeta=01JNM3BJ4F0 WT17KEHX6A3VWXT&hash=item2fc431965e:g:5GcAAOSw1YNg S3ii&itmprp=enc%3AAQAKAAABIFkggFvd1GGDu0w3yXCmi1dg uDAMoKR5xaDTUOjbDzGmYRk6dQCWFsdrOY%2BaGlx0cP9f4E6x kPwcb7pMvuDR2NRz04MmmHGF2JTEz%2FaCa9zZMllHkoOesgPq ITT1k5%2FYlyLQ069QGZSYCJ0PCdgcFG1BspZiJXqa6Y7%2Fw8 8x30AdMVPRWqCc92Ha7YvIiWVFFM%2FhThftCJcUfVhXGNVcZ% 2FBq4fvZWHDkystpU9fbjS%2BHb4wDUXGOK4%2Fk6MKdqEHPMz cDBLN54ieEgxDhkxmUNvlzEHo2xhGSQ6VopSO9xK4jdNoFFO6H ypyhRpvxTtj6lURHQbcgNmx%2Fd4f0YZ3bEigw1MtrRZD2GptA MBJFyKictGQuPi%2FA6tAhwUMACVhxsg%3D%3D%7Ctkp%3ABFB MpqKug61l

Hope this helps

 

Or used?
https://www.ebay.com/itm/23590076779...+hazard+switch

 

Thanks, everyone!
I'll update once it's all sorted out.