At the very end, the instructor tells the technician to lie to the customers. "Tell them the burps and hiccups are normal caused by too much fuel in the system." "Serve no purpose but create more billable hours" caught my ears too.

Is this real?

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1985 500SL Euro w/ AMG bits 130k
1984 300SD Turbodiesel 192k
1980 240D Stick China 188k
2001 CLK55 AMG 101k
2007 S600 Biturbo 149k Overheated Project, IT'S ALIVE!!!