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Author Topic: Snapped subframe walk 16mm bolt. What to do?  (Read 2818 times)

Offline dazza

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Re: Snapped subframe walk 16mm bolt. What to do?
« Reply #15 on: July 03, 2021, 01:08:02 am »
Thanks guys its the one with the yellow arrow pointing down.

Things are not that cheap here, I will see what i can find.

And the complete subframe needs removing?

And a lot more stretch bolts to be replaced?

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Offline brian_badonde

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Re: Snapped subframe walk 16mm bolt. What to do?
« Reply #16 on: July 03, 2021, 07:09:03 am »
Unfortunately yes, you'll have to lower the whole subframe and replace the stretch bolts. You'll also have to remove the steering rack and ARB bolts on the side that you're replacing. Attached is a picture of how it mounts up from the other side. The big hole at the back is a body mount and the 4 smaller ones are ARB/rack. The rack has locating dowels in those holes so you have to gently pry the console away from it, it won't immediately come free once you undo the bolts.

On the stretch bolts, you could maybe get away with not replacing the ARB/rack ones but I would definitely replace the body mounting ones.

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Offline chimp400

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Re: Snapped subframe walk 16mm bolt. What to do?
« Reply #17 on: July 03, 2021, 07:46:15 am »
I’ve just removed my subframe to do the steering rack and it’s quite a nice job to be fair, nothing too taxing.
Probably going to take some heat on that bolt to free it off.
I’d replace the subframe stretch bolts personally, the rest will probably be ok if your not disturbing them.
It’s a slippery slope when you get it down though thinking what else you should change, I went for super pro arb bushes and the vibra technics dog bone subframe bush.
2008 Edition 30, R-Tech Stage 1, BCS Prestige Cat Back Exhaust, Vwr Suspension Kit, SALK, Superpro Arb bushes, Vibratechnics dog bone subframe mount.

Offline dazza

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Re: Snapped subframe walk 16mm bolt. What to do?
« Reply #18 on: July 03, 2021, 03:06:35 pm »
that was a pita



the bolt is well and truly stuck i welded a bolt heated and hit with the impact gun > bolt snapped again
Then i drilled all the way though heated and used easy out still would not come out.

I will order a new one.

Can I rebuild and torque the control arms on the bench?


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Offline chimp400

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Re: Snapped subframe walk 16mm bolt. What to do?
« Reply #19 on: July 03, 2021, 05:30:27 pm »
Final tightening of the front bolt would be beneficial with the car on its wheels but no issues with rebuilding them on the bench.
2008 Edition 30, R-Tech Stage 1, BCS Prestige Cat Back Exhaust, Vwr Suspension Kit, SALK, Superpro Arb bushes, Vibratechnics dog bone subframe mount.

Offline dazza

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Re: Snapped subframe walk 16mm bolt. What to do?
« Reply #20 on: July 03, 2021, 07:16:09 pm »
Thanks for your help guys

So I need to order 4 more subframe bolts

2 * N90823501

2 * N91039801

1 * N10528602 for the new console.

4 * N10579702 steering rack

4 * N10570601  ARB

1 * N10204808 dog bone

1 * N10454801 dog bone

Are any other bolts one use?
« Last Edit: July 12, 2021, 11:17:28 pm by dazza »

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Offline chimp400

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Re: Snapped subframe walk 16mm bolt. What to do?
« Reply #21 on: July 03, 2021, 07:22:57 pm »
Most are single use, I’ve just had my subframe out to do the rack and arb bushes etc and replaced the following.
6 subframe, 4 rack, 4 arb bush, 3 dog bone.
Got them all from Vag bolts on eBay.
There is a good list here midway down the first page.
https://www.mk5golfgti.co.uk/forum/index.php?topic=117626.0
« Last Edit: July 03, 2021, 07:25:10 pm by chimp400 »
2008 Edition 30, R-Tech Stage 1, BCS Prestige Cat Back Exhaust, Vwr Suspension Kit, SALK, Superpro Arb bushes, Vibratechnics dog bone subframe mount.

Offline LC5F

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Re: Snapped sunframe walk 16mm bolt. What to do?
« Reply #22 on: July 03, 2021, 11:15:38 pm »
Drilling out would be a pita under the car i suppose i could remove the subframe?

Yes - but the subframe is made out of 3 parts centre and 2 outers, last time I checked it was £15 for replacement side part on ebay, no need to drill.

I managed to snap off 3 of those bolts, it was the white powder that bound up the thread solid, even with the subframe in an oven at 200C it wouldn't budge with good penetrating oil or wax melted onto the thread.

For console bolts - Febi do a good kit or if this kit seems good value doing both sides - brand is Topran - terrible name, but great cheap parts: https://www.ebay.co.uk/itm/224355416883?hash=item343c9ffb33:g:1R0AAOSw7kdgLQQj

Offline dazza

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Re: Snapped subframe walk 16mm bolt. What to do?
« Reply #23 on: July 12, 2021, 09:52:49 pm »
Thanks guys, I've order a replacement off ebay for 25 euros.

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Offline LC5F

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Re: Snapped subframe walk 16mm bolt. What to do?
« Reply #24 on: July 13, 2021, 09:30:19 pm »
Can I rebuild and torque the control arms on the bench?

Yes to bench tighten
When I did mine with DSG - even with the dogbone disconnected - there was not enough room to get a torque wrench + socket in between the bolt head and the mechatronix
Ended up dropping the subframe just enough to tighten

If you want to get a head start, you can partially re-assemble the subframe in the Golf ready to add the side part of the subframe.
Lastly, don't forget to bolt in the cable tray on the top of the Left side... its close to the inner CV and can rub

Offline dazza

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Re: Snapped subframe walk 16mm bolt. What to do?
« Reply #25 on: July 15, 2021, 11:09:12 am »
All done just need an alignment and a couple of new tires.

I found this cap on the floor and cant remember where its from?  :scared: :rolleye:




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Offline brian_badonde

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Re: Snapped subframe walk 16mm bolt. What to do?
« Reply #26 on: July 15, 2021, 11:20:39 am »
Nice one, congrats

Don't remember seeing one of those. Having said that, the caps on my axle stand release handles look like that. Worth checking your tools maybe

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