Service bulletins for the 2013 BMW 535i
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.
399 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Automatic transmission are shown. Show all
| 121712 | 2019-07-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING. N52T / N55 with 8HP45: Delay in Engine Response. A customer may complain of a delay in engine response after decelerating at low road speeds and then reaccelerating. This can occur when the transmission remains in a high gear due to a delay in the transmission downshifting. This situation can be more noticeable while driving on roads with slight turns or with an increasing gradient. Unfavorable EGS and DME software |
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| 120113 | 2018-12-03. Service bulletin. ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION. MN16 Engine: FC 2D9B Knock Sensor, Signal Is Stored in the DME. Certain areas of the US experience extremely cold climate conditions during the winter months, which can cause the Service Engine Soon lamp to illuminate while the engine temperature is increasing to full operating temperature. The following fault may be stored in the DME: ??FC 2D9B Knock Sensor, Signal CAUSE Unfavorable DME knock sensor diagnostic at outside ambient temperatures below -5° C |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.