Although it does not matter which leads from your multimeter you use to test AC current, when testing DC, it is imperative that you use the positive (red) lead on the positive (+) side and the negative or ground lead (black) on the negative (-) or ground side of DC circuits.lthough it does not matter which leads from your multimeter you use to test AC current, when testing DC, it is imperative that you use the positive (red) lead on the positive (+) side and the negative or ground lead (black) on the negative (-) or ground side of DC circuits.
Always verify your Mercedes-Benz color code on your vehicle before ordering. Obsidian Black Metallic may go by several different names and the color sample shown above for 2015 Mercedes-Benz S-Class is approximate. Show all 17 colors for 2015 Mercedes-Benz S-Class.
Obsidian is a black gemstone with a glassy luster, although there are other types of Obsidian including snowflake obsidian and mahogany obsidian. As a black gemstone, it symbolizes self control and resilience.Obsidian is actually volcanic glass. It has been used since prehistoric times for making tools, masks, weapons, mirrors and jewelry. It is found in Iceland, Italy, Japan, Wyoming, and Hawaii.s a black gemstone, it symbolizes self control and resilience. Obsidian is actually volcanic glass. It has been used since prehistoric times for making tools, masks, weapons, mirrors and jewelry.