MERCEDES-BENZ CLK55 vs MERCEDES-BENZ CLK550

The MERCEDES-BENZ CLK55 (2005–2006, 2 model years) carries 3 NHTSA consumer complaints and 0 safety recalls, while the MERCEDES-BENZ CLK550 (2007–2008, 2 model years) carries 7 complaints and 0 recalls. Severity indicators for the pair split as follows: 0 vs 0 crashes, 0 vs 0 fires, and 0 vs 0 reported fatalities.

Raw complaint counts favor whichever nameplate has fewer vehicles on the road, so the cleaner lens is components: which specific part families concentrate each model's filings? For the MERCEDES-BENZ CLK55, the leading complaint category is unknown or other (1 filings), followed by steering and fuel/propulsion system. For the MERCEDES-BENZ CLK550, it is fuel/propulsion system (3), ahead of unknown or other and fuel system, gasoline. When the two vehicles cluster around the same component, the problem is likely a shared supplier or a shared federal standard under stress; when they diverge, each nameplate has its own defect signature independent of the other.

Average NCAP crash-test scores are not uniformly available for both nameplates in this dataset, which typically means one or both pre-date the 2011 rating methodology refresh. Use the side-by-side table below as your scorecard, but do not treat it as a verdict. Recall counts tell you how many defects the manufacturer has already been compelled to remedy; complaint counts tell you what owners are still flagging today; and safety ratings tell you how the vehicle performs in standardized barrier tests — three different lenses on the same underlying question. The "also compare" links at the bottom of this page let you triangulate against neighboring nameplates in each model's competitive set.