Question about 2004 Mercedes-Benz CLK-Class
2004 clk 500 unsteady idle rpm, could it be the fuel filter?
RUN down to Advance Auto Parts and buy a can of "SeaFoam" and add to your gas tank per instructions...drive for at least 100 miles and the problem should be gone. If not, one or more of your O2 sensors are most-likely fouled (lousy fuel quality these days).
Posted on Jun 22, 2009
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Posted on Jan 02, 2017
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