Table 1 shows two common engine and engine cooling related problems of the 2016 BMW 750.
| Problem Category | Number of Problems |
|---|---|
| Engine And Engine Cooling problems | |
| Radiator problems |
Active radiator grille malfunction active grille is stuck in closed position increasing the chances of the engine overheating and related safety risks. This problem has been reported in multiple BMW models and model years but the my2016 g12 with a production date of March 2016 is not mentioned in previous service bulletins. Attaching links to service bulletins for same model but different production dates and for different models with the same issue. Https://static. Nhtsa. Gov/odi/tsbs/2019/mc-10160279-9999. Pdf https://static. Nhtsa. Gov/odi/tsbs/2019/mc-10170559-9999. Pdf driver was alerted to the issue when the check engine light came on. Upon diagnosis, dtc code p05ae was found to be the reason for the check engine light which indicates an active grille issue.
There are two grill shutter actuators. One for the upper and one for the lower. Different part numbers. Nhtsa issued a TSB for n63r in 2019: mc-10160279-9999 (g12 (n63r)/g30 (b58m) radiator grill upper and lower active air flaps: limited warranty extension to 10 years/120,000 miles). My vehicle is a n62r and there are hundreds perhaps thousands of reports of the identical part numbers from brose manufacturing (USA / germany) failing. For example, my upper failed in Apr 2023 after a repair I paid for in Sep 2022 with a p/n manufactured in 2021. Then, the lower actuator failed which has a manufacture date of 2017 (so it is the oem part). Though the upper actuator is coded to remain open on fault, the lower is for some reason coded to remain closed on fault. If the fault codes are incorrectly interpreted by the ecm when the vehicle is in operation, then the engine could quickly overheat and lead to major issues for the occupants, but likely result in thousands of dollars of engine repairs. I urge you to reconsider the TSB and issue a recall/warranty extension for all BMW g11/12/30 and similar (in fact, this part is used on all series with upper and lower shutters: 5, 7 and x from 2015. ) the main problem I am having is that there are no parts in stock at BMW worldwide. Brose has not responded. Thank you.