To replace the right side hood latch on a 2011 Mercedes C250 4MATIC, start by ensuring the hood is fully open and secured. Begin by removing any necessary covers or trim pieces that may obstruct access to the latch. Next, locate the latch assembly and disconnect any electrical connectors if applicable. Use a wrench or socket to remove the bolts securing the latch to the hood. Carefully detach the old latch and replace it with the new one, aligning it properly. Reattach the bolts, reconnect any electrical components, and replace the trim pieces. Finally, test the new latch to ensure it functions correctly before closing the hood.