I not too sure what reliance may be placed on forum comments but I have seen a few postings on modern Mercedes diesels which suggest that using the stop start for short/commuter journeys may lead to a quicker build up of soot particles in the DPF (diesel particle filter). which may if not regularly regenerated cause problems. You can tell when the diesel is regenerating, you can get a slight smell of diesel in the cabin (for a matter of seconds, as more diesel is being pumped into the engine to make it run hotter, the water temperature rises and the radiator fans tend to run when the engine is switched off. I always use a DPF cleaner every 2nd or 3rd tankful of diesel.
Last edited by JohnHarris; 03/10/23 08:56 AM.
