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Audi A3 - Hole in pipe, loosing water


Lore1983
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Hoping someone maybe able to help. I have an Audi A3 1.9 TDI 2009 model and this week started to loose daily a lot if not all water and screen wash and my warning light comes on and says please turn off engine immediately and check coolant. On inspection under the bonnet, although I am no mechanic, I did have a look to see if I could see any obvious problems. I topped up the coolant with water and windscreen wash with screen wash, and a small hole in the silver pipe is where it looks like the water is spurting out from and dripping down through to the drip tray, soaking everything else on its way through. It looks almost like an indent in the metal pipe, where a small hole is. Its not something iv ever noticed before, so i am quietly confident this is where its leaking. My question is, does anyone know what pipe this is? And could I just repair the pipe in some way? If anyone has had a similar issue, or has any knowledge I would be extremely grateful for any feedback. I have included a video below to where the hole is:

https://1drv.ms/v/s!AneYjOGtAPi5gX35wfkMJN_RNr6D?e=AR733r

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Hello Lore,

Sorry to hear of your problem. 

Repair the pipe? Certainly not recommended, unless you want to risk wrecking your engine via. loss of coolant. 

If this were mine, I would take your video along to the nearest main dealer and order a new pipe. It would be worthwhile thoroughly checking the other pipes to ensure they are servicable.

Kind regards,

Gareth.

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Lore.

Don't waste your time trying to repair it. Get a new one. The water it carries is above boiling point and under pressure so you should not chance another burst. What's puzzling is why it fractured. Is it rubbing or banging on something else?

That coolant leak is entirely unrelated to loss of screen wash. Are you definitely losing screen wash or have you confused the warning lights?

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Hello Gareth thanks for you advice. I have booked it in to my garage. Thanks also Clifford for your response. Yes I dont understand why the dent almost in that metal pipe, when i put the casing back on the engine etc it was not rubbing on anything so I cant understand why it has damaged there in particular.  Ah yes i can see thats a different pipe its connected to, i just seem to have to top up a lot on that most weeks, but could be down to me always cleaning my windscreen 🙂 . Thanks both for your advise . Do you know what sort of cost it would be for a new pipe? Thanks again for all your advice it is much appreciated.

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Hello Lore,

Sorry, but not sure of the cost of the pipe, but your garage will advise you on that. You will also need to factor in the cost of coolant to top this up to the correct strength, but that shouldn’t be expensive. 

Kind regards,

Gareth. 

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