I don't think there are any aftermarket manuals for Mercedes after model year 1985. I know Haynes prints one for the W123 series, but I don't think they have printed ones for any newer models. I am not sure about Chiltons. The best of course would be the MB CD.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member