Well, old fatty is in at my local garage for new disks, pads and MOT, fingers crossed!! BMW i3 Electric Car
2012 Full Fat RR 4.4 TDV8 (now gone)
2006 VW Touareg 3.0 TDi V6

And we have ....... an MOT FAIL

Rear brake pipes, one failed during brake test oops! left it with the garage to replace them, Im now fattyless until next week. BMW i3 Electric Car
2012 Full Fat RR 4.4 TDV8 (now gone)
2006 VW Touareg 3.0 TDi V6

Sounds like a blessing when it comes to brakes !

It absolutely kills me why they don't fit kunifer 10 or similar non-corroding pipes from new. BMW i3 Electric Car
2012 Full Fat RR 4.4 TDV8 (now gone)
2006 VW Touareg 3.0 TDi V6

I totally agree,
Volvo started using this material in 1976, don't know if they still do.
you might find this interesting:- www.brakeconnect.com/cunifer-brake-line

Got cunifer fitted as standard on my Volvo V70 2006 ( Sven...) - 13 years old, no sign of any corrosion .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Hi Joe,
On your V70 I'm curious, are the brake pipe fittings brass or steel?.

Thanks

After having advisories for the rear flexis last year, I thought I’d replace them ahead of the MOT next week.

The offside went well but the near side flare nut was rounded off (I’d asked someone to do them for me but they said the nuts were too rusted and didn’t want to damage the brake pipe - but never mentioned they’d rounded it off).

A number of hours later, having fought with the fuel tank cover and heat shield (thanks Joe for your old brake lines post in the Wiki ) and replaced a length of pipe, all was good.
Getting back to the OP - AJGalaxy - did it fail on the flexis or the pipe which connects to them? 2017 Jaguar F Pace 25t Portfolio - still part of the JLR family 😀
2009 3.6 V8 (MY2010) - my first ever diesel! - now also gone
2004 4.4 V8 Petrol Vogue - now gone

@ Strider, they look brass or "brass-like" to me .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Thanks Joe,
when I did my brake lines I used steel fittings, my reason, those threads are quite fine and have a small cross section area, I didnt want to risk cross threading or stripping the thread on assembly.