Assuming you re talking EGR, my 96 300 went through with a blank on fine. Down to tester I suppose, if he knows landys and the 300 then he may know its missing then its down to his jobsworth attitude. IIRC 94/95 300s didn't have them as standard, 96 to 98 did.
 
Should I feel guilty for using one? Like how much more gunk am I pumping out into our green and fertile land?
 

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