Mercedes-Benz CLA 250 2020–2021 — technical service bulletin
Bulletin Updates · NHTSA communication 10205821 · issued Aug 13, 2021
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020–2021
model years
2
vehicle entries
Official summary
Important new emission service campaign information.
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.