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Maddpuk
Member Since: 25 Aug 2023
Location: Barnard Castle
Posts: 39
  
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If Flexible Brake hoses should be changed at 10 years, what limits their life - for sure weather, movement and potentially contact with brake fluid will be factors?
But crucially, does that mean old-stock parts are best avoided - e.g. would a new OEM replacement/pattern part be a better option than an 8-yr old Genuine part? 2014 Discovery 4 HSE
2013 Insignia Sports Tourer BiTurbo 4x4 SRi
2004 S2000
Honda FourTrax TRX300
- Paul
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 19th Aug 2024 2:18 pm |
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kajtzu
Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6738
  
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Flexis (the rubber hoses) should be changed every 6 years… 
As they’re rubber pretty much anything affects them from road salt (nordics), to temperatures and how much you brake. Alternatively you can get stainless steel braided brake hoses, for example from HEL Performance or similar places.
Really, the brake fluid should be changed every 3 years or so. I know some people doing it every two but they’re driving quite a lot. Others do it every 4 years. Again, this isn’t included in anyone’s maintenance program so most likely you’ll be fine with an extra year. If it killed anyone they’d have it as a mandatory item.
For brake fluid, theoretically it will collect water. How much over how long time? Anyone’s guess. It is possible to test the boiling point with a tester however.
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| 19th Aug 2024 4:20 pm |
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Maddpuk
Member Since: 25 Aug 2023
Location: Barnard Castle
Posts: 39
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Thank you @kajtzu, though presumably replacement at 6 years is a recommendation rather than mandatory as I'm pretty sure LR doesn't do this as part of its service routines having reviewed my main dealer history?
I agree with all the factors you list affecting their service life, but my question is regarding shelf life where a hose will be not be exposed to any of those elements. The closest might be hardening of the rubber, similar to tyres, but isn't that primarily due to UV exposure which I wouldn't expect to be the case for a warehouse stored part.
So, I am still wondering which is preferrable - an 8-9 year old genuine LR hose or a new aftermarket one? 2014 Discovery 4 HSE
2013 Insignia Sports Tourer BiTurbo 4x4 SRi
2004 S2000
Honda FourTrax TRX300
- Paul
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| 20th Aug 2024 7:56 am |
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itsaguything
Member Since: 20 Dec 2023
Location: Manotick, On
Posts: 245
  
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The recommended maintenance schedule is applicable in only the most slightest of duty. The schedules suggested here are far too lenient for a Canadian climate, let alone heavy duty either towing or off road.
Mall crawling, maybe.
But at 10 years, plastic and rubber breaks down significantly. Most fluids are long past their service cycle by then.
Cheers! 2015 LR4 HSE Lux Aintree Green
2013 LR2 HSE Radiance Red
2007 XKR Jaguar Racing Green
2005 XJR Jaguar Racing Green
2002 S-Type R British Racing Green
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| 20th Aug 2024 7:37 pm |
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