Mercedes-Benz AMG ML63 2013 — technical service bulletin
Bulletin SB-2013080001 · NHTSA communication 10053533 · issued Aug 1, 2013
Technical service bulletin
communication type
Engine and Engine Cooling
component
2013
model years
7
vehicle entries
Official summary
Mercedes: the coolant hose position, on some vehicles, may be incorrect and can cause lower radiator hose coupling not to lock into place. Models 2014 ml350, ml550, ml63, ml350, gl 350, gl 450, gl550, gl 63.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.