How do you change spark plugs for Mercedes?

To change spark plugs in a Mercedes, start by gathering necessary tools such as a spark plug socket, ratchet, and torque wrench. Remove the engine cover if applicable, then disconnect the ignition coils by unfastening their connectors and bolts. Carefully extract the old spark plugs using the socket, and install the new plugs by hand to avoid cross-threading, then torque them to the manufacturer's specifications. Finally, reconnect the ignition coils and reattach the engine cover.