I don't personally understand why you need to use it (Techron) on a new car / Top Tier gasoline should have enough additives.
There were issues of carbon build-up on N54 engines and would Techron have prevented that problem?
Mercedes in one of their Owners Manual's does state " Do not blend other specific fuel additives with fuel ... and may be harmful to the engine operation "
Mercedes does say be certain to use quality fuel.
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