How do you tune up a 1998 mercedes benz clk 320 ?

'tune-up' left on term when days when engines mechanically controlled , required resetting or retuning periodically them efficient state.

these days, modern car engines computer controlled , adjusted. many of items either changed or reset during tune-up have disappeared. although term still lingers within automotive landscape, tune-up today consists of changing spark plugs , maybe checking condition of filters , fluids.

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