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BMW TSB #B260422
2016 BMW 740
TSB Document:
Affected Component: POWER TRAIN
- Summary
- There is a howling or whistling noise from under the vehicle at 30 -37 mph (50 -60 km/h) when driving after a cold start, when the outside temperature is 32 F (0 C) or lower. The noise goes away as the vehicle/driveline reaches operating temperature.
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