Service bulletins for the 2015 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.
80 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Automatic transmission are shown. Show all
| B240215 | 2018-11-13. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 8HP: Transmission Fluid Loss from Cooler Lines Connections. There is a transmission fluid leak in the area around the oil cooler lines (on the transmission side). CAUSE Damaged o-rings due to unfavorable cooling line connection tolerances |
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| SIB-24-02-15 | 2015-10-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:MANUAL TRANSMISSION. BMW: ON TRANSMISSION SIDE, IN SOME VEHICLES, THE TRANSMISSION FLUID IS LEAKING AROUND THE AREA OF THE OIL COOLER LINES CAUSING UNFAVORABLE COOLING LINE CONNECTION TOLERANCES TO DAMAGE O RINGS. MODEL E84 (X1), E89 (Z4), F22 & 23 (2 SERIES), F30 & 31 (3 SERIES), F32 & 33 (4 SERIES), F34 (GRAN TURISMO), F36 (GRAN COUPE). *PE |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.