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AurelijusG

Audi A6 C7 v6 3l black hard mass around exhaust manifold

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Hi

Hope someone has some ideas and can help me with the below please? 

Audi A6 avant c7 v6 3L TDI

I have noticed a black splatter around the coolant  reservoir  and top engine cover. Upon further inspection noticed a black mass of more of the same around where exhaust is coming out of the engine.  It is totally solid/hard. What is that? Engine runs ok apart from very rare juddering on cold start and some coolant disappearing overtime. (Like 200mil over a month or two) No leaks of any sort noticed

This black hard mass looks worrying 😞

No loss of power, no overheating, coolant reservoir nice and clean, oil cap clean, no bad smoke coming out of exhaust- none of the worrying bits if you know what I mean? 

Any help would be much appreciated. 

See pictures attached. 

6AEAF780-1FA8-433F-8ADD-DBA52EB0CA17.jpeg

1EA73893-B54E-4A63-869B-88CB52601285.jpeg

3FED741D-A99A-4577-B2A5-12B4006CCA36.jpeg

367AED60-624B-4F68-BAC1-0E45A6A10EFF.jpeg

F9E11C5E-F106-4E8F-97D5-E8C4F94D5ED2.jpeg

7AAA1203-86FA-4992-8A83-94306A035CC5.jpeg

C9E95E0C-8414-495C-A345-B87280C58443.jpeg

4CCB03A9-4CD9-4E7C-8B64-D2C86950373B.jpeg

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