Every 6 years or 60,000 miles we have to replace the spark plugs of our Mercedes, that's requiring of Mercedes maintenance booklet. So let's replace the spark plugs for my six years W350 (M276). In MB repair booklet, there is a step to remove intake manifold, in order to remove ignition coil easily. But that must replace the intake plenum gasket, that'd spend another a hundred bucks and more time. So follow my video, you might save that bucks and time to replace all of six spark plugs.  If you like my video, subscribe please: https://www.youtube.com/channel/UCfVyCQWx5ldpXTW7rLQFZxg/ Here is the video: https://youtu.be/HpD3Aq1rYIo  Spark Plug Socket: https://ebay.to/2tLvbrH  Spark Plug boot Removal Pliers: https://ebay.to/2RKoMoD  Spark Plugs: https://ebay.to/3augvOe  Dielectric Grease: https://ebay.to/36o50o9  Gearwrench 81230P Ratchet Set: https://ebay.to/2utjfLu  Husky Tool Chest: https://ebay.to/2NPTETu  DEWALT Impact Driver: https://ebay.to/2TQu0lE