BMW E90 or E83 Broken Engine Mount

This one has actually been documented by BMW in service bulletin # SI B22 01 10

As you can see by the pictures the engine mount bolts on the passenger-side of the engine break.  This is because the bolts are aluminum / aluminum bolts are necessary on this engine because the engine block is made out of magnesium (!).  Crazy but true.  With this client he noticed a clunk on the passenger side of the car that sounded a lot like a bad CV axle or CV axle joint.  Not the case.  Here’s the pictures:

 

E90 N51 broken engine mount 1

 

E90 N51 broken engine mount 2

E90 N51 broken engine mount 3