Hi all I'm new here and really stuck , I have a slight leak in my egr pipe oil on the engine from on and I'm trying to source a new pipe with the part number 038 131 521 CB but there is nothing coming up on Ebay,  most are similar apart from the last 2 letters , can anyone advise if they would fit , my car is a 2007 A4 s line 1.9tdi 

 

Thanks again 

Hello Marc,

Deutscheparts on EBay are listing …..CB at £130 odd. 
You may find CC etc are simply updated part numbers for the same part. On the other hand, they make be an actually modification of the earlier CB, so I guess you take your chance. 
Kind regards,

Gareth. 
p.s. Maybe worth contacting Audi Parts Direct ( part of Mon Motors - once Cardiff Audi) they have been known to offer a little discount off retail - although, by what I understand from the trade, their discount is now often below 10%. 
Let us know how you get on Marc. 

OK thank you , I'll have a call around tomorrow and update . Thanks