Fluteguy· Premium Member
2016 E350 4matic Luxury Sedan, 2011 E350 Avant Garde Cabriolet
Discussion Starter · #1 ·
I have a 2005 CLK 500 with 88,000 miles on it. Yesterday when I started it, the fast idle was fine but the normal idle was kind of rough. Not awful but up until yesterday it was so smooth I hardly knew the car was running. I scanned it for codes but got nothing. It just had the B service three months ago and the only recommendation was front suspensions bushings and air filters. I asked about spark plugs but the tech at the dealer said it wasn't due until 100,000 miles.