CL 550 4MATIC (216.386) V8-5.5L (273.961) (2009)
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Tire designation
Component Identification
The four-digit code or production code as per the DOT letter sequence and numerical sequence specifies the manufacture date, e.g. 0907 = 9th week
in the year 2007 (number 1 and 2 = production week, number 3 and 4 = the last digits of the year of manufacture).
M + S = slush and snow tires (winter tires)
All other designations are USA identification specifications.
The speed symbol "W" has been added to the usual speed symbols "Q/R/S/T/H/V/VR/ZR". This symbol identifies tires that have been approved for
speeds up to a maximum speed of 270 km/h.
When installing new tires, these tires can be used as a replacement for "VR" and "ZR" tires. An entry in the registration papers is not necessary.
The speed symbol "Y" has also been added. This symbol identifies tires that have been approved for speeds up to a maximum speed of over 270 km/h.
