Needing a bit of help here guys, Doing a pre MOT check as well as an oil change, i fond this sitting in the bottom of the engine tray when i took it off. Its a snapped shouldered stud with a nut on the end of it with a torx head.

I cant see where it has come from, however i have noticed the Freelander sounding a bit rattly a bit like when the air con compressor was making a strange noise due to low refrigerant.

Any ideas?

Click image to enlarge

Click image to enlarge

Looks quite corroded possibly exhaust cat or DPF stud??? 2013 FL2 XS.
Defender 90 300 TDi.
Defender 90 300 TDi CSW.
1964 MGB Roadster.
1944 Willys MB "Jeep" with bullet holes. (gone)
17 hand Irish Drought Thoroughbred (mostly lame)
Nagging Old Boiler.

Thermostat bolt?

That's an exhaust manifold to head stud. There is also a tubular spacer that goes with it.
It's broken off, so presumably it has been over tightened during work on the vehicle. Hyundai Ioniq 5 Ultimate. The family car.
2009 Rimini Red SE TD4. Gone.
2006 Tonga Green i6 HSE. Gone.
Audi A5 convertible, my daily driver.
1972 Hillman Avenger GT, the project.

ok thankyou , as long as know which area to start looking at ill see if i can retrieve the rest of the stud.

Ive just also had the same happen with my Discovery TD5, one of the studs to the manifold snapped off

ahh 6K046 studs and 9A432 tube

Don't wait too long, probably just a bolt-up job but if there's exhaust leaking and it etches the head you might need to replace that, or pull it for machine work.

Used to be an all too common issue on Td5 Discovery and presumably Defenders which were known to warp their exhaust manifolds and shear studs especially if they were tuned. Mine needed 2 manifolds replacing and was cured with an uprated bolt and spacer kit.
They made a high pitched screech on heavy acceleration sounding like a slipping belt. Has yours started making any unusual noises recently? Landrover - turning owners into mechanics since 1948

2014 Orkney grey Freelander SD4 GS.
2004 Zambezi silver Discovery 2 Td5 (Gone)
1963 Surf blue Morris Mini Minor Super de Luxe (my little toy)

No the Discovery hasnt started making any noises as of yet, , i wish i had a garage where i could get it in and strip the head off, but winters coming up so will have to wait until after winter if i can