Mercedes indy in Connaught

Hi folks,
This is my 1st post on boards.ie! I have recently bought a 02 w210 E320 CDI and I can smell a sweet tar smell and get stinging eyes when driving it. I have been told that this is caused by the "black death", the build up of carbon around leaking injectors. I have removed the engine covers and sure enough there is a black tar like supstance around the injectors. I want to get this repair but am not willing to pay dealer prices, does anyone know a good independent Mercedes mechanic in the sligo or connaught area that would be competent in repair this, I know it can be tricky so I dont want to let any old fool to give a go.

Your help and advice would be most greatfully excepted