BenzIsWin

Hello everyone. I spent the weekend removing the intake manifold from my r350 for the infamous runner issue, and am about to reinstall. But saw 'somewhere' that the intake manifold bolts are of the one time use, torque to yield variety. So does anyone know if that's actually accurate? Thanks in advance.

BlackML550

Attached is the WIS procedure for removing and installing the intake manifold for M272 and M273 engines. You hadnt stated your VIN so there could be a variation for your model, but I doubt it. There is nothing in this document that indicates one time use for the manifold's bolts. If they were, it would be stated in here with the procedure for tightening.

BenzIsWin

Thanks for the info and the document! Yeah, I think the M272 is basically the same thing across all platforms, with the main difference being access. Access to the back of the manifold is very limited in the R350. But with other models I've seen, there's TONS of room.

idrivecars

I'm trying to determine if I can Do It Myself. Any chance you could provide the WIS instructions on step 20 in this pdf, "Reduce fuel pressure with pressure hose via the service valve"? And/or advice on how to DIY without the special service tool?
Would be much appericated.

Also, would anyone have recommendations on what other service might be good to do when the intake manifold is out? I only have 158k mi on a 2008 R350.

Thanks