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RecallGazette

Vehicle problems, recalls & safety intelligence

Mercedes-Benz AMG CLS55 2003–2017technical service bulletin

Bulletin LI03.20-P-048278 · NHTSA communication 10135950 · issued Mar 26, 2013

Technical service bulletin
communication type
Engine and Engine Cooling
component
2003–2017
model years
57
vehicle entries

Official summary

Engine makes intermittent knocking noise, ticking/crackling

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.