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Why do you need all this just to replace the vacuum hose at the front of the intake manifold? The manual says you have to remove the intake manifold from the engine.

Yes, that is correct, these are OEM parts - not cheap aftermarket. These are the same parts on all 272 V6 and 273 V8 from 2006 to 2013. That is a few million cars that are now all aging, and many have not had these parts replaced.

Since these engines run so well, some believe that the fuel injectors will last forever. If you have noticed your fuel economy is declining or your engine oil seems thin, then replace these injectors. Best to do it after 150K as a preventative measure to increase engine life.

Many tool sets do not even have a 16mm or 18mm combination wrench, let alone ones that have a ratcheting box end. Mercedes never used 16mm or 18mm fasteners up until the late 1990's. Now they are everywhere - especially under the car.

You will save $$ by purchasing the complete kit. Each item can be purchased separately in the related products below. Click on each one to learn the specifics of each product included here.

Kent has been "into" lubrication since his younger years, flying and working on airplanes over 50 years ago.

For E430, ML430, E500, E55. S500, CL500, and SL500 through 2003. Every M112 V8 I have worked on starts making front engine bearing noise around 90K to 100K. Almost like clockwork! This is a service you will want to perform whether you have had your Benz for a long time or just purchased one.

It seems like you never needed a 16mm or 18mm wrench or socket until 1996.  After the intro of the W210 things changed. This set of 3 quality U.S. made tools consists of an 18mm stubby combo, an 18mm deep 3/8 drive socket, and a 16mm short 3/8 drive socket.