Replacing Spark Plugs for Mercedes W212 (M276) 更换奔驰E350火花塞

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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 E350 (M276).
In the MB repair booklet, there is a step to remove the intake manifold, in order to remove the ignition coil easily. But that must replace the intake plenum gasket, that'd spend another a hundred bucks and more time. So follow this video, you might save that bucks and time to replace all of six spark plugs.
MB star SD connect C4: https://ebay.to/2NlYWWO
Spark Plug Socket: https://amzn.to/2UVs5vV
Spark Plug boot Removal Pliers: https://amzn.to/2zrzsDK
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Permatex 22058 Dielectric Tune-Up Grease: https://amzn.to/2MBu9UZ
Gearwrench 81230P Ratchet Set: https://amzn.to/3dKcnuK
Hose Clamp Pliers https://amzn.to/2YpC1i6
Husky Tool Chest: https://ebay.to/2NPTETu
DEWALT Impact Driver: http://shrsl.com/2b0m3
详细步骤和数据，敬请移步：https://www.leighsr.com/spark-plugs-r...
奔驰的保养手册要求每六年或六万英里更换火花塞，我的E350（M276）已经六年了，换吧。注意，奔驰的维修手册要求拆掉进气总管，以方便拆掉点火模块，但那必须更换进气总管与进气歧管间的密封圈，费钱、费事又费力。按照我的方法可以省掉那些步骤和钱。