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Discussion Starter #1
Hello!

Does someone know dimesions of O-ring seal marked on picture bellow?
It's hose from oil cooler on 16V JTDs, oil filter side.
 

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Discussion Starter #3
Did you manage to sort this? I too have a leaking seal at the oil cooler end!
Unfortunately not. I just cleaned o-ring and slot where it fits. When pushing hose into it doesn't have to be tight because o-ring functions in different way then classic seals. Now I have leak from oil cooler itself 🥴
 

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O-rings are usually standard sizes. Measure the OD and the diameter of the ring material (eg OD12mm x 3mm == ID6mm x 3mm). Digital calipers help! In hot petrol you'd need Viton, but standard Nitrile will be fine in that location. You can usually find what you need on eBay, or in mixed packets at B&Q or Halfords. For tricky sizes or materials, altecweb.com - Tubing and Extrusions Manufacturer are good.
 
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