Service bulletins for the 2013 BMW Z4
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.
145 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Starter are shown. Show all
| 120514 | 2018-11-13. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY; ENGINE. N20/N26: Engine Fails to Run on Repeated Cold Start. The engine turns over but does not start on a repeat cold-starting attempt. For example, on the first cold start the engine may start normally, but if shut off right away, the engine may then fail to start and remain running on the next repeated attempts. Unfavorable DME software in combination with the NGK SILZKBR8B8S spark plug |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.