no a regular socket will/can work. I use a craftsmans spark plug socket with a 3/8 ext. it have never failed me. I personally like NGK plugs, but I put in what ever my parts dept gives me. some are Bosch and some are NGK.
I never unplug the coils. just remove and lay to the side (above exhaust manifold).
I prefer to do this on a cool eng so not to stretch or damage the threads in the aluminum head. WIS does not specify hot or cold. I have looked.
MB also says not to use the stabilant 22a on its pins. it has been known to create issues. it is noted multiple times in WIS repair instructions. It may be ok to use, but I don't.
but other than that a plug change can be done in 20 minutes.
most of the do not use I have seen is for the ECU connections, TB, and MAF. I have not really read the WIS for spark plugs. I just looked it up a few times to get the torque spec for the plugs. I will say I have used it on some connections and have not had any issue. I was stating that's it isn't necessary to use it.
Cool! Thanks "King" for the Grease tip...MB Spark Plug Connector Grease
I know thought recently released bulletin complemented thread. Bulletins are readily available through STAR subscription.Actually, the request for the WIS documentation was directed at the use (or Prohibition as the case seems to be) of Stabilant 22A.