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The turbocharged
/
twins were the most powerful of the
-based M cars ever made when they came out. Now it appears all that extra torque from the turbocharged motor could be a bit too much for some of the driveshafts, because a weakness there is prompting
to recall 2,660 of its M cars.
Of those, 1,456 are
and 936 of them are
, both for model years 2016-2017. There are even some of the rare M4 GTS coupes involved in the recall as well. The driveshaft flange is reportedly too weak for the 406 pound-feet of torque (or more) subjected to it, and may fail over time. Upon failure, the connection between the driveshaft and the flange could break, “resulting in a loss of propulsion,” according to the
National Highway Traffic Safety Administration
.
Fixing it will require a new driveshaft for all the cars, done free of charge. Those who have already replaced their driveshafts will be reimbursed for the work. Randomly losing propulsion could result in a dangerous situation, but BMW says it’s unaware of any crashes or injuries caused by the defective flanges.
Related video:
from Autoblog https://www.autoblog.com/2018/10/31/bmw-m3-m4-recall-driveshafts/