Sill rust - REAL jacking point?

[Grrrmachine]

Took the right side skirt off the Touring today, and discovered a fat patch of rust at the back end. It spread from the wheel arch to the other side of the jacking point; or at least I presume that's what the solid steel plate is.

I cut the outer sill away and thankfully the inner sill is still good, so I'm building a repair, but that steel plate is shot. It looks like a miniature version of a suspension top mount; a big hole with a plastic cap inside it.

I can't find it on OEM, and it'll be a pain in the arse to fabricate. Considering it's also a rot trap, is it worth replacing, or should I just plate over it?

[greg124]

I read somewhere on the zone that what we generally refer to as jacking points are put there to locate the body on a jig as goes down the production line.

[Grrrmachine]

These are the spots of the factory jack, or at least one of them is.

There's two things at the rear end of the sill; a metal strip held on with two bolts, and a round hole plugged with plastic. It's this round hole thing that's giving me a headache.

[Jozi]

I plated mine up, no one will ever get near my car with one of them jacks that go under the sill.

[daimlerman]

These are the spots of the factory jack, or at least one of them is.

There's two things at the rear end of the sill; a metal strip held on with two bolts, and a round hole plugged with plastic. It's this round hole thing that's giving me a headache.

The metal strip held with two bolts is part of the rear beam mounting,but the plastic plug has me confused,have you a photo?

[Jozi]

I think he means the 2 elongated-ish plates on the sills, there's a plastic insert in them from memory.

[Grrrmachine]

Sorry, my description wasn't great so have a stolen photo:



See that odd metal shape of the left? On my car that's got a hole in the centre, and a plug that connects to a supporting bracket INSIDE the sill; I presume it's the jacking point, to give extra strength. I don't know whether to replace it or just plate over where it was.

And those rear beam strengthening plate bolts; utter coonts. One had rounded off, and cutting a slit, grinding flats on the oustide, and even welding a nut to it didn't work. Bastard bolt will have to be drilled out now.

[toddy]

Jack fixture 41 35 1 913 759 number 9 on here, no idea if it's still available though.


Single components for body-side frame - BMW parts catalog

[Grrrmachine]

Good spotting toddy, I hadn't noticed 9 and 10 were separate

[daimlerman]

With reference to the rear beam lower plate retaining bolts.
I have sliced the captive nut off the back,but take care not to cut into the lower plate.Then on re-build a nice shiny M8 stainless nut and bolt.

[Grrrmachine]

Yeah, cutting off the bolt is going to be the only option, it seems. I can't be arsed with easy-outs.

I'll probably just put in some 2mm plate as well to replicate the jacking point; I'm not paying 20 quid to BMW for some fancy folded steel if I can bash my own with a hammer

It's just a new headache. I wanted to have the first coat of primer on the car this week, and this has set me back by a few days.