BMW M2 2016–2020 — technical service bulletin
Bulletin B640416 · NHTSA communication 10172500 · issued Feb 1, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2016–2020
model years
12
vehicle entries
Official summary
Water Ingress In Footwell Area From A/C Condensate Drain: This Service Information Bulletin (Revision 1) replaces SI B64 04 16 dated March 2016. The condensate drain hose is blocked by the heat shield The condensate drain hose is not attached properly to the housing The condensate drain hose was damaged during installation
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.