Apologies not bike related but I'm sure someone can help me here. My wife's 2006 B200 CDI is now on 170 000km and I'm pretty sure stock injectors. Sometimes I notice a bit of black smoke on cold start and under acceleration. Otherwise it drives and idles fine and gives very good fuel economy most would say dont worry about it but I like to tinker. I read reviews on the Liqui Moly diesel purge cleaner that gets connected directly to the injector pump thus the engine only runs on the Liqui Moly stuff. Yes I know some might say test the injectors and rather buy new ones if needed but I reckon going on the reviews and the fact that it will cost R250 to try. Problem is nowhere I can get instructions to do it on a W245. Most youtube videos is on Polo and Jetta TDI's which has 4 lines going into the filter but the Mercedes only has two so I'm not sure where to insert the Liqui Moly container :-[ Below is the process on a VW and then the picture of our cars setup.
https://www.youtube.com/watch?v=iq_ZGh1KEec
https://www.youtube.com/watch?v=iq_ZGh1KEec
