fuel leak top of engine.

handyman

Member
I have a fuel leak coming from the top of the engine ,it is a small length of rubber pipe where it connects, my question is it easy to replace and how are the clips
attached and does it need a special tool. Is the part number the one on the side of the pipe
20191022_132521.jpg
20191022_132507.jpg
 
the 036133725 and 8z0..... numbers that you can see on a couple of the components are the VAG part number - the 036 one is probably shared with other vehicles, the 8z0 is A2-specific

I'm having real trouble working out where this is - a photo from a bit further out putting it into context would be handy. Is this a petrol or diesel car?
The clip by your thumbnail can be sprung with locking pliers (small to medium size) and while held released, you can edge the clip further up the pipe until it isn't holding the pipe engaged with whatever is inside.
 
I used universal petrol pipe, it is very flexible.
As per Robin's message, the clips can be gripped with long nose pliers or the likes, quick easy job, and remove the smell of fuel from the cabin...as well as removing the potential for a fire!!!!!
MAKE SURE YOU DO IT WITH THE ENGINE COLD!
 
FSI fuel pipe, you can replace with good quality petrol hose from a motor factor/Hydraulic hose supplier(Hydrascand carry good quality hose)……….
Would certainly second only doing the replacement when the engine is cold, but would add not to drive or run the car with the leaking hose fitted the under bonnet temps are extremely high and this is also very close to the first cat converter.
Chris
 
Went to audi in Yeovil the cost of the part was £27.96 plus vat and no one in the country had one in stock
it would go on back order waiting 10 to 30 days, so went to local hose and radiator shop one meter of 8mm hose and new clips £8.40 now done and fully working

Thanks for advice
Alex
 
I always thought fuel line etc. hoses were somewhat specially made for the purpose material composition wise not to degrade due to exposure to quite nasty solvents (fuel) etc.

a standard hose might degrade fairly quick and be a ticking time bomb waiting to spray fuel all over your engine bay.
 
I always thought fuel line etc. hoses were somewhat specially made for the purpose material composition wise not to degrade due to exposure to quite nasty solvents (fuel) etc.

a standard hose might degrade fairly quick and be a ticking time bomb waiting to spray fuel all over your engine bay.

I'm sure the OP meant to advise that the local hose supplier had provided fuel-rated hose, but it was worth a post just to make sure the OP is aware there are different grade of hose for different fluids.

Cheers
Jeff
 
I always thought fuel line etc. hoses were somewhat specially made for the purpose material composition wise not to degrade due to exposure to quite nasty solvents (fuel) etc.

a standard hose might degrade fairly quick and be a ticking time bomb waiting to spray fuel all over your engine bay.
normally I would let this pass over my head , but if you think that I would have purchased one metre of standard hose for £8.40 then please think again, I would also have thought that the 8mm size would indicate that it was not normal hose
 
Just as a reminder to people and for general information the new fuels with added ethanol will degrade fuel hose.........its now worth keeping an eye on fuel hoses as part of regular maintainence, I recall a lot of concern in the classic car mags about possible problems with rubber fuel hoses.......one reason all new cars are fitted with nylon fuel pipes.
 
Fair enough, didn't mean any offense, better check than a bbq in the engine bay especially with ethanol content nowadays.
 
Hi,

This has happened to my 1.6. The same fuel line has perished. Looking at replacing it. I measured it at around 8mm ID. I can't find an official spec for that pipe. Looking to use an R9 standard hose instead (as I attribute the deterioration to the E5 fuels), such as this Cohline one:


Three questions:
  1. do you think this one at 7.3mm ID will be OK?
  2. should I ditch the old press-clips and replace with jubilees?
  3. I read a lot about fakes from eBay and some web suppliers - any positive experiences of the suppliers listed above or any other reputable suppliers of such things?
Many thanks!
 
Hi,

This has happened to my 1.6. The same fuel line has perished. Looking at replacing it. I measured it at around 8mm ID. I can't find an official spec for that pipe. Looking to use an R9 standard hose instead (as I attribute the deterioration to the E5 fuels), such as this Cohline one:


Three questions:
  1. do you think this one at 7.3mm ID will be OK?
  2. should I ditch the old press-clips and replace with jubilees?
  3. I read a lot about fakes from eBay and some web suppliers - any positive experiences of the suppliers listed above or any other reputable suppliers of such things?
Many thanks!

It maybe hard to fit as that’s quite a difference in ID, I would say jubilees are not rated for fuel lines and the pressure fittings are the correct ones to use.


Sent from my iPhone using Tapatalk
 
Hi,

This has happened to my 1.6. The same fuel line has perished. Looking at replacing it. I measured it at around 8mm ID. I can't find an official spec for that pipe. Looking to use an R9 standard hose instead (as I attribute the deterioration to the E5 fuels), such as this Cohline one:


Three questions:
  1. do you think this one at 7.3mm ID will be OK?
  2. should I ditch the old press-clips and replace with jubilees?
  3. I read a lot about fakes from eBay and some web suppliers - any positive experiences of the suppliers listed above or any other reputable suppliers of such things?
Many thanks!

Could try this?



Sent from my iPhone using Tapatalk
 
Thanks for the suggestions.

Could try this?



Sent from my iPhone using Tapatalk
Not sure about this one? All the performance specialists seem to recommend Cohline or Gates hose using FPM rather than Nitrile. I also read a lot of bad things about the braided hoses from eBay (aesthetics over function).

It maybe hard to fit as that’s quite a difference in ID, I would say jubilees are not rated for fuel lines and the pressure fittings are the correct ones to use.


Sent from my iPhone using Tapatalk
I guess I wasn't sure of the actual spec of the original hose - as my hose was damaged. I see a lot of 8mm hose advertised that actually has a smaller inside dimension (presumably as the rubber ones will stretch). Most of the fuel hose manufacturers sell jubilees for use with their hoses - for instance these UK Cohline suppliers:


I'll keep reviewing the options.

Thanks again.
 
Thanks for the suggestions.


Not sure about this one? All the performance specialists seem to recommend Cohline or Gates hose using FPM rather than Nitrile. I also read a lot of bad things about the braided hoses from eBay (aesthetics over function).


I guess I wasn't sure of the actual spec of the original hose - as my hose was damaged. I see a lot of 8mm hose advertised that actually has a smaller inside dimension (presumably as the rubber ones will stretch). Most of the fuel hose manufacturers sell jubilees for use with their hoses - for instance these UK Cohline suppliers:


I'll keep reviewing the options.

Thanks again.


That’s a T-bolt not a jubilee, those are ok as they don’t pinch


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