BMW 328D 2014–2017 — technical service bulletin
Bulletin B160918 · NHTSA communication 10149486 · issued Oct 1, 2018
Technical service bulletin
communication type
Engine and Engine Cooling
component
2014–2017
model years
11
vehicle entries
Official summary
SCR SYSTEM FAULT 805256 STORED IN VERY COLD WEATHER. After the vehicle is exposed to prolonged temperatures under -9°C (15.8°F) and is then driven a long distance when temperatures are above -9°C (15.8°F), the check engine light may be illuminated. The following fault may be stored in the Digital Diesel Electronics (DDE) 805256 - Active tank filling level sensor, signal: echo fault In low temperature under -9°C (15.8°F) a layer of ice may form in the active tank. This can result in an incorrect level measurement after the vehicle is driven.
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.