BEFORE YOU START Please be sure to check down below for all the tools you'll need to do this maintenance! It'll save you A LOT of time.

Before buying anything though check through your toolbox first. You may already have some of the tools listed down below.

Also I mixed up Wrench with Ratchet.

(Note: Spark plugs and Ignition Coils could differ from vehicle to vehicle so please either check online or your local Automotive Parts retailer for the correct model.)

Video Link about Anti-Seize:    • When Should You Use Anti-Seize On Spa...  
How to apply Dielectric Grease:    • How To Properly Use Dielectric Grease...  

Parts:
Spark Plug
Maybe an Ignition Coil

Tools:
Dielectric Grease: http://amzn.to/2FAVyAV
Ratchet: http://amzn.to/2E8ec66
Torx T30 Socket: http://amzn.to/2DUnVtw
3/8 Drive (F) to 1/4 Drive (M) Reducer Adapter: http://amzn.to/2EvKA0i
3/8 Drive Extension Bar Set: http://amzn.to/2DUsS5o
5/8 Spark Plug Socket: http://amzn.to/2FBZL7C

The car used in the video is a Mercedes-Benz 2010 C-Class w204