Nearly an accident.

[Cowabunga]

Hard to say without seeing the wheel and threads but there does appear to be flattened threads on at least two of the studs which would seem to indicate that the wheel has been moving in and out over them. Are they one piece fasteners or studs which stay on the hub with the wheels attached by nuts?

 

[smcapstick]

One of my BMWs did the same thing. In this instance, it was a 3-Series. All studs sheared of with no warning. The wheel didn't fall off though, the hub just spun in the wheel centre!

 

[Landyman]

Morons in tyre garages have a lot to answer for with the windy gun. Not once have I seen a torque wrench used properly

Had the front end balanced on the daihatsu in the week, wheel man put the nuts on with air, then came back with the torque( don't trust the guns ) he was right, one and a half turns till the double click

 

[Landyman]

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Defo stress fractures,I work with hardest metals made in my job and stress test everything. Your nuts were to tight mate

 

[Landyman]

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Defo over tightened , I can see the stress fractures , even tell which was the last to go, I fettle ,zeron , and duplex for nuclear facilities, stress testing is utmost,see it all the time .sorry its my speciality

 

[FonterraFarmer]

Nuts too tight, measure the old bolts/studs and the new ones , whats the difference between the two?

 

[Gatehouse Farm]

BMW X5 for farm duties! Blimey you're posh.

 

[suffolksmallholder]

Slightly off topic here but @Landyman.
I have a friend who is in the metal treatment business and one of his everyday tools is a scanning electron microscope. Having seen the pictures that this machine takes to show the crystalline structures of certain items it is fascinating!
SS

 

[Pheasant Surprise]

Pictures as requested.

No evidence of worn or elongated holes.

Marks on top of the sheared studs are from the drill used to extract them. (in the event once the drill got hold, the studs went further in and thru the flange)

Now awaiting 20 new studs!

Acorn

Order 22, couple of spares just in case...

 

[acorn]

More pictures.

I hope overtight studs was the problem. In my defence I have never taken the wheel off.

 

[Landy Nick]

Had a mate lose a wheel on his landcruiser while pulling a fully loaded flat bed trailer.
The front wheel came off and was run over by the back wheel and the trailers wheels.

 

[Penmoel]

More pictures.

I hope overtight stu,ds was the problem. In my defence I have never taken the wheel off.
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I think you should go back to whoever fitted those wheels last and explain to them , perhaps without actually accusing them, possible consequences of over tightening the wheel nuts.

 

[Cooper3075]

My first though was I'd a x5 really up to lots of towing could have been nasty

 

[Derrick Hughes]

My first though was I'd a x5 really up to lots of towing could have been nasty

See that big caravan on its side, that was im front of me on the M4 tonight, being pulled by a Mini Metro

 

[Blue.]

View attachment 21178


See that big caravan on its side, that was im front of me on the M4 tonight, being pulled by a Mini Metro

Can you let us know when your going out FT as there seems to be a lot crashes when your on the road.

 

[Derrick Hughes]

Last time I drove up the M6 I was over taken by a transit van , on its roof !! 100%! I was doing 70in the outside lane and it past me then spun across in front of me, I cut over to the middle lane and carried on

 

[Derrick Hughes]

This was Fridays being recovered

 

[Derrick Hughes]

 

[Lincsman]

More pictures.

I hope overtight studs was the problem. In my defence I have never taken the wheel off.
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Looks like you also need a pair of discs and a rim.

 

[NZDan]

I lost a wheel of my pick up, not once but twice 18months apart. Same wheel, no real reason for either time. Wheel nuts had come right off. Wheel travelled for a bloody long way.