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2003 A6 C5 1.9TDI mystery loose pipe

Featured Replies

I was having a nose around under the bonnet earlier and found a loose pipe (photos attached). I have no idea what it is or where it goes, it's got a braded cover and is situated near the turbo pipework. Can anybody help identifying this please? The car is running completely normally by the way.

Thanks in advance,

Dave

loose1.jpeg

loose2.jpeg

loose3.jpeg

loose4.jpeg

Solved by daveyboy1967

  • Author

I forgot to say, it obviously looks like it's been deliberately blanked off by someone other than Audi but what is it and what purpose would blanking it off serve? I'm a little concerned I may be causing damage to the engine in the long term running it like this thanks to someone's half assed repair/mod.

  • Author

After a lot of research tonight I'm thinking someone in the past has deleted the EGR valve, anyone able to confirm this may be the case?

  • Author

I didn't have time to strip things down and check yesterday as I'm working nights for a couple of shifts now. Now I know what I'm looking for though I should be able to tell if the EGR valve is missing a pipe without too much faffing about.

  • Author
  • Solution

I think we can definitely say my EGR valve has been deleted, and it's so obvious now that it's funny. I've been intending for quite a while to try to find a missing fixing trim for my engine cover as shown below.

 

 

egr1.thumb.jpeg.1b0f864c50c3ca9e0f9a839ebbdc09fd.jpeg

However it now turns out that what I was missing was an EGR valve!

 

egr.png.0c0c0ac6ef31a751dc110e4a47f44e21.png

 

Taxi for Dave please!

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