Service bulletins for the 1999 BMW 740i
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.
6 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Engine are shown. Show all
| B170100 | 2023-11-01. Service bulletin. ENGINE AND ENGINE COOLING. The lower radiator coolant return hose may come in contact with the secondary air system check valve flange gasket when the engine coolant is at operating temperature due to coolant system pressure and expansion of the hose. |
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| B122817 | 2018-07-16. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE. SERVICE ACTION: PROGRAM DME (FOR O2 SENSORS): Due to DME software error, the following oxygen sensors plausibility fault codes may be stored in DME 5.2.1 control module: |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.