what will it cost me to repair lower intake valve in a mercedes benz 1996 c220 on 1996 Mercedes-Benz C220

i will like to have it repair at a dealer shop in fayetteville north carolina. what has happen the light for the engine has been on, it was diagnosis lower intake flow valve, MB 1996 c220 4 cylinder, or what detergent can i use to clean the valve. thanks for your advise norton c. campbell

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1 answer
Do you mean the lower intake manifold gasket (3.5 hours labor, $35 in parts), or replacing the actual intake valves in the cylinder head (about 19 hours).