Fuel Hose - Cracks in rubber after 2 years

Post Tue Apr 07, 2015 7:26 am

I replaced the under bonnet fuel hoses a couple of years ago with what I believe to be fuel graded rubber but it only states L671, checking them yesterday I noticed they are cracked and need replacing already.

I'm pretty sure BMW will not sell their hose by the metre so I'm looking for an alternative that I can get more than 2 years out of it without worrying.

Has anyone found a company selling the same version of BMW fuel hoses or would it be worth upgrading to either R9 or BIO fuel hoses which I understand are now being fitted to most new cars?

Post Tue Apr 07, 2015 8:31 am

I bought my genuine bmw hose from an eBay seller who listed it as mini hose. Worth a look, since the same pipe (8x13) has been used on BMWs for years.

Post Tue Apr 07, 2015 10:32 am

If the hose does not have "suitable for unleaded fuel" printed on it then it is not intended for use with a pressurised fuel system and it will leak, your lucky its lasted 2 years, id guess you dont use the car much

Post Tue Apr 07, 2015 10:37 am

I've found the same thing with non genuine hose - 20 year life for the originals; 5 years for aftermarket, if you're lucky.
Fired up one of my E30s on Sunday for the first time for eight months, and fuel was spurting our from the hoses either side of the fuel filter. Sure enough, the failed hoses were aftermarket, along with all four hose clips having different sized heads (5mm, 5.5mm, 6mm and 1/4")

Post Tue Apr 07, 2015 10:57 am

Just go to the dealers and buy their fuel hose and new clips.. it's not that expensive..and it's cheaper than putting fires out

using aftermarket stuff is just too risky I used some "quality" hose once that blew up like a balloon.. luckily i spotted it before it burst

Post Tue Apr 07, 2015 2:06 pm

There is more to hose than just rubber tube, just because it has 'fuel' on it does not mean it can be used with petrol or a pressurised system

Post Tue Apr 07, 2015 2:23 pm

After a bit of research I've found that the original hose supplier to BMW is a company called Cohline. They have a UK distribution centre and sell to several retailers including Advanced Fluid Solutions.

AFS stock R9 fuel injection pipe but also an upgraded BIO hose that won't breakdown with the Ethanol in today's unleaded fuel.

It's about £13.50 per metre which will work out a lot cheaper than what the dealer has quoted.

Post Tue Apr 07, 2015 2:34 pm

If you want BMW hose id buy it from BMW

Post Wed Apr 08, 2015 11:14 pm

PG325 wrote:I'm pretty sure BMW will not sell their hose by the metre

Yes they do.

Post Wed Apr 08, 2015 11:37 pm

bss325i wrote:
PG325 wrote:I'm pretty sure BMW will not sell their hose by the metre
Yes they do.

Probably listed on the stock exchange!

Post Thu Apr 09, 2015 12:10 am

PG325 wrote: I'm pretty sure BMW will not sell their hose by the metre

http://www.e30zone.net/modules.php?name ... c&t=260765