Good to know....don't really want to do the job twice....

Having the hoses replaced probably isn't an option because I will be precision-cutting the nuts off the ends of the lines to preserve the oil cooler threads.

__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

Try to break the nuts first before doing that. Heat them up really good and see what you get.

However considering where you live I'd say the chances of stripping the threads is pretty good.

__________________
1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

ive removed hoses a total of 3 times each hose on one of my cars. Thats a total of 6 times, not one of them has stripped. My threads are fine, just unscrew it. Dont be so paranoid

__________________
1981 300SD 512k OM603

Where do you live? Do they salt the roads?

__________________
1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

So far, two out of two times I have removed the lines they stripped and ruined the threads....we use lots of salt....it all depends where you live.

However, I am going to heat them up like crazy (MAPP GAS) before I try. I'm also going to try cutting them with a dremel to weaken the nut first. I have many things I'll be doing to save the threads, hopefully they will work.

Several days treatment of penetrant too....

__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)