Mercedes-Benz C250 2012 — technical service bulletin
Bulletin SB-2012080001 · NHTSA communication 10048181 · issued Sep 1, 2012
Technical service bulletin
communication type
Electrical System
component
2012
model years
3
vehicle entries
Official summary
Mercedes: due to having engine misfire and high primary current from uncontrolled charging and discharging of ignition coils, the eight ignition coils will be replaced. Models 2012 204. *pe
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.