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RecallGazette

Vehicle problems, recalls & safety intelligence

BMW 228I 2011–2016 — technical service bulletin

Bulletin B123314 · NHTSA communication 10147863 · issued Dec 1, 2015

Technical service bulletin
communication type
Engine and Engine Cooling
component
2011–2016
model years
42
vehicle entries

Official summary

Fault Code 1D2008 Stored in DME. The Service Engine Soon light is on. Fault Code 1D2008: Map thermostat: jammed open is stored in the DME. There may also be a complaint of low heat output with lower outside temperatures. CAUSE During the engine warm-up, the engine coolant does not reach operating temperature within the DME's allowable time limits. This is caused by either a faulty thermostat inside the transmission oil heat exchanger or a faulty engine characteristic map thermostat.

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.