Engine mount, wrong tightening torque in Bentley?

[georgebest]

i've put in two new engine mounts a while ago and decided to torque them to spec today. Used brand new, original BMW mounts and even bought the original BMW nuts (YOLO).
Followed the Bentley manual and tightened both the upper and lower nuts to 47 NM, see below what it says:

engine mount.JPG

On the driver side both (!) lower thread broke at 47NM, I had no issues with the upper one. Rather didnt touch the passenger side, just hand tighten those.
Does anybody know where to find it in TIS the "official" tightening torque? I'm not finding it anywhere, but planning to send it back seller cause they cost a fortune. Just wanted to be sure 47NM is the correct torque before trying to get a warranty replacement.
Any help would be highly appreciated.

[georgebest]

Well, it seems Bentley is sort of correct, cause it says M10, while those are M8. Proper tightening torque looks like 20-22Nm according to TIS. Lesson learnt.

TIS tightening.JPG

[cyclops2]

when I read your first post, I thought oh oh since the torques are different for M10 v M8. glad you figured it out.

out of curiosity, could you post a picture of the snapped stud including the "severed head".

[georgebest]

when I read your first post, I thought oh oh since the torques are different for M10 v M8. glad you figured it out.

out of curiosity, could you post a picture of the snapped stud including the "severed head".

For my defense, Bentley says "or subframe" and use the same value for both (47Nm). Anyway, lesson learnt. Probably no need to take it out, will just put a washer below the nut, rest of the thread should be ok. Will make pictures immediately when I'm not going to freeze to death in my garage