Thermostat

[Padgett114]

a

[95blkmax]

Brother, anytime you mess with exhaust bolts, there is a risk of them breaking. You can mitigate that risk by soaking them in WD-40 or PB Blaster for a few minutes.

I would recommend if possible, doing this with these bolts at warm temperature (not full hot operating temp, and not cold). That along with a good penetrating lube will usually do the trick for a trouble-free removal.

Good luck!

[AlpineX]

Originally Posted by Padgett114

The bolts on the egr cooler flange seem really tight and I don't want to take the chance of breaking them. Has anyone had this problem, or have you had the bolts break?

You definitely dont want to break them or strip them. Use a high quality bit and make sure that you are straight on and all in. If it is possible to have the manifold just warm that could help, but dont go sticking your mapp torch down there...

[seattle]

I definitely seen a post/thread about that EGR cooler bolt breaking. So, be careful.

[Dieselfan]

Originally Posted by Padgett114

Thank you guys for all the posts. Sadly to say I think I am at the point of selling the X5. I love the X5 but I just don't want to deal with the problems anymore or the high cost of repairs.

If this help change your mind but remove the electric fan gives you all kind of room to work.
Use good tool and the correct size of socket ( six sides NOT 12 sides socket help remove hard bolts and nuts)

I just replaced the thermostat and the job wasn't too bad.

[740iS]

What he said!