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Old 04-19-2019, 03:44 PM   #1
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Join Date: Nov 2013
Location: Eastern part of Western CT
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My Ride: 2000 323Ci
Rear Brake Line

I was just going to replace the hose going from the steel line to the caliper, but it looks like the 11 mm nut that connects the two is somewhat stripped. If it is stripped, 1) Any suggestions as to getting it loose besides liberal application of WD40, etc? I tried Googling an 11 mm O2 sensor socket with the slit in the side, but apparently that's a no go 2)How hard is it to replace the steel line? (it was starting to rain 3 hours before it was predicted, so I chose to throw the tire back on and not to chase the line underneath the car today). When the sun reappears in a few days, how screwed am I?

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Old 06-13-2019, 06:55 AM   #2
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Join Date: May 2008
Location: NYC/Philly
Posts: 31,811
My Ride: 2013 328i 6MT
I have a similar issue but mine is that the nut is seized onto the hard brake line.... I'm going to have a shop try to cut the line, re-flange it with a new nut. If that doesn't work then the entire hard line will have to be replaced.

Luckily for you it looks like the brake pipes are installed in sections so it should be a lot easier to replace the affected section.

In my F30 i have to lower the fuel tank since it's one long piece.
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Old 06-13-2019, 08:04 AM   #3
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Thanks for your input. I tried again and failed miserably. I ended up having a friend who is a Ford Tech do it as a side job for me since he has access to a lift. He couldn't get it off, either, so he cut the hard line, put on a new nut, and flared the end to make it work. I was hoping not to have to replace the line and was able to get away with it. I dodged that bullet.
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