2004 Mercedes-Benz CLK500 Q&A
2004 Mercedes-Benz CLK500 Question: 2004 clk 500 with 23,000 miles on it. should i change the plugs?
This engine calls for the equivalent of a Champion KC11PYP spark plug which are fine for 60k miles in my opinion, many would say leave them in for longer but if it were mine I would change at 60k. - patrick mannion