Mercedes-Benz ML350 2012 — technical service bulletin
Bulletin SB-2012020001 · NHTSA communication 10048180 · issued Mar 1, 2012
Technical service bulletin
communication type
Engine and Engine Cooling
component
2012
model years
4
vehicle entries
Official summary
Mercedes: engine control module software, for diesel engine vehicles, fails to meet current obd specifications and will need to be updated. Models 2012 166, 221. *pe
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.