Mercedes M278 S550 W221 Spark Plugs Replacement

Every 6 years or 60,000 miles we have to replace the spark plugs of our Mercedes, that's requiring of Mercedes maintenance booklet. Spark Plug Socket: https://amzn.to/2UVs5vV Spark Plug boot Removal Pliers: https://amzn.to/2zrzsDK Spark Plugs: https://amzn.to/37plv5L Permatex 22058 Dielectric Tune-Up Grease: https://amzn.to/2MBu9UZ Gearwrench 81230P Ratchet Set: https://amzn.to/3dKcnuK