Service bulletins for the 2014 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.
116 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Transmission and driveline are shown. Show all
| B110221 | 2021-12-13. Service bulletin. POWER TRAIN:DRIVELINE:CHAIN/BELT; EQUIPMENT:ELECTRICAL. With the court's FINAL approval, BMW of North America, LLC (BMW NA) has entered into a nationwide settlement with the plaintiffs in the following class action: Gelis, et al. v. Bayerische Motoren Werke Aktiengesellschaft and BMW of North America, LLC. |
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| B110317 | 2021-11-08. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. BMW of North America, LLC (BMW NA) is extending the limited warranty for the engine timing chain and oil pump drive chain modules to: 7 years/70,000 miles as determined by the vehicle's original in-service date |
| 280114 | 2018-11-26. Service bulletin. POWER TRAIN. DCT Transmission: Oil Leakage Diagnosis. INFORMATION Incorrect diagnosis of DCT (Double-clutch Transmission) oil leaks may lead to unnecessary part replacements and repeat customer repair visits. When diagnosing complaints related to DCT fluid leaks, please use the attached diagnostic procedure. WARRANTY INFORMATION Not applicable. ATTACHMENTS View PDF attachment B280114_DCT_Oil_Leak_Diagnosis. [ Copyright (c)2014 BMW of North America, Inc. ] https://www.bmwtis.net/tiscode/cgi-bin/bulletin.aspx?sie_path=/tsb/bulletins/htm_store/16672.2.B28011... 12/24/2014 |
| 611714 | 2018-11-13. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. "Intelligent Battery Sensor Diagnosis Hints. The vehicle enters the workshop with one or more of the following complaints: * Check Control Message related to battery discharge * No-start condition * Consumer power reduction (reduced blower speed, heated seats operation, etc.) * The following fault codes may be stored in the DME a. 2E8B - Intelligent battery sensor, signal b. 2E8C - Intelligent battery sensor, function c. 2E8D - Intelligent battery sensor, signal transmission d. 2E8E - Intelligent battery sensor, communication CAUSE A faulty battery or IBS sensor (not both) The power management system and IBS in the vehicle cannot determine if the battery needs to be replaced. This is normal operation for all E-Series vehicles because they do not have the Advanced IBS sensor that the F-Series vehicles do. An external battery tester (Midtronics EXP-1000) must be used to determine if the battery needs to be replaced. Energy Diagnosis will not prompt for a battery replacement unless the battery is ""aged."" When energy diagnosis identifies the battery as ""aged,"" it means the amount of energy discharge over the course of the life of the battery has reached its maximum (worn out). In most cases, energy diagnosis states that the battery is OK. This is typically an indication of the current State of Charge (SoC), not the State of Health (SoH). The SoC is defined as the current amount of energy left in the battery (displayed as a percentage). The SoH is defined as an evaluation of the condition of the battery over a period of time (displayed as a percentage). For more information about batteries, refer to Training Manual ST051, ""07 Battery Basics.""" |
| 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 |
| B240215 | 2018-11-05. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. 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 |
| 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.