Mercedes-Benz AMG CLA45 2014–2015 — technical service bulletin
Bulletin LI35.40-P-060213 · NHTSA communication 10058288 · issued Mar 30, 2015
Technical service bulletin
communication type
Suspension
component
2014–2015
model years
3
vehicle entries
Official summary
Xentry: bulletin information involving cla 4 matic and gla 4matic:thumping, grinding, and chatter noise come from the rear of the vehicles which may be caused from internal differential assembly. *lj
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.