70 Plate 130ps carbon build up around Adblue injector

[Craigyd86]

Hi all, 

Anyone got some advice for carbon build up around the adblue injector area. See attached images. 
I removed the injector and gave it a clean and fitted a new seal around 300 miles ago as noticed a large amount of black carbon build up around the area. It’s not wet, it seems like carbon build up. 

Any help would be greatly appreciated, wish I’d kept my 64 plate now ?. 

Cheers

[notsofast]

Info online says leaking AdBlue would dry to a whitish powder, so maybe you've got an exhaust leak somewhere that's near to the injector? Does the vehicle sound normal?

[Craigyd86]

Info online says leaking AdBlue would dry to a whitish powder, so maybe you've got an exhaust leak somewhere that's near to the injector? Does the vehicle sound normal?

Sounds normal, drives perfect etc.