Mercedes CLS55 AMG W219, Changing The 16 Spark Plugs With Beru Ultra Titan UPT14P

Replaced all 16x (!) spark plugs with fresh new Beru UPT14P Ultra Titan Spark plugs. They are pre-gapped at 0.75mm and I adjusted them to 0.8mm as per factory specifications.

They needed to be replaced a little while ago, too bad that some people skimp out on needed maintenance.