View Full Version : Rear bench seat bracket torque spec

05-06-2016, 04:09 PM
I've relocated my rear bench seat in my crew van from the 2nd to the 3rd row. I'm very happy with the new location, but for the life of me cannot find the actual torque spec to use when fastening the seat brackets to the new location (most DIYs state to torque to spec).

Does anyone happen to have this value, or better google-fu than I do to find it?

05-07-2016, 07:51 AM
Tighten first bolt until it snaps.

Tighten all others a little less.

Actually, I usually get them around 100 - 120 lb. ft.

02-19-2017, 03:01 AM
Old thread, but I may have some information.
I removed by rear bench today from a 2016 Crew.

Before removing the bolts, the van being brand new, I checked with a torque wrench the needed torque to move the bolts. With 50Nm, nothing was turning.
At 57Nm, all were turning, at least 1/8 or 1/4 of a turn to get the "click".
Individual values to start moving them in the 53-55Nm range.

=> I think I will tighten back at 55Nm. That's 40 ft.lb.

100 ft.lb seems way too high in my opinion.
It would be great to know the real official torque.

02-19-2017, 05:09 AM
Did more research. The bolt is a M10. Class is 10.9 (written on it). On this page (https://manuals.co/workshop/mercedes/sprinter/mercedes-sprinter-workshop-manual/5528981/6) (Service Manual), we can read that recommended torque when bolting into steel is 60Nm / 45 ft.lb.
Note : use at your own risk. Just sharing info I found on the net. Check with a professional...