Just stick with 2000-2002 and you'll avoid early issues. Our CLK320 was pretty problem free.

No rust here though, so can't comment on that.

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k