Service bulletins for the 2012 BMW 750Li
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
337 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Catalytic converter are shown. Show all
| B122319 | 2019-08-19. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; EQUIPMENT:ELECTRICAL. DIAGNOSTIC HINT: CATALYTIC CONVERTER INSPECTION AFTER LOSS OF CRANKSHAFT SIGNAL. In certain situations when the crankshaft position signal is lost while driving the malfunction indicator lamp (MIL) and an engine malfunction check control message (CCM #29) may be displayed. The engine may run roughly or with reduced power. |
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| B121615 | 2018-11-13. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. N63T: Oxygen Sensor Internal Resistance Faults. The Service Engine Soon light comes on with either or both of the following faults stored in the DME memory: ? 12B701 - Oxygen sensor heating after catalytic converter, function: Internal resistance too high ? 12B801 - Oxygen sensor heating after catalytic converter 2, function: Internal resistance too high The engine operation and performance are not affected. The DME diagnosis for the post catalyst oxygen sensor(s) is too sensitive. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.