I recently attempted to change the front brake pads and rotor discs on my 2019 Discovery Td6. Everything went smoothly until I over-tightened the upper 13mm bolt on the caliper bracket, and unfortunately, the bolt's head broke off. I managed to extract the remaining bolt. However, when tightening the new bolt, I couldn't achieve the required 26 ft-lbs of torque. The bolt just keeps turning. I lowered the torque wrench setting and it seems the torque is about 15 ft-lbs now. It's not loose, at least for now. I put everything back together and took it for a test drive. It seems fine. Did I screw up? Should I order a new caliper bracket (part number LR110405) for peace of mind? Is there any other way to fix the problem without ordering a new bracket?

 

Are you certain you have the correct size replacement bolt? It seems very odd that you could break off a head on one fastener then have it's replacement not achieve torque.

 

Did you hold the inner with an open end wrench while you torqued the bolt? That might do the trick.

 

I did hold the inner when I just started torquing the bolt, but stopped holding it when it no longer turned with the bolt. So, could this still be the issue, or do you think I might have damaged the thread of the 'nut'? Is it dangerous to drive now?

 

Yes, the size is correct. I see what you mean though.