Fluids and filters (especially fuel filter) never hurts, but it sounds like a clogged diesel particulate filter or seized turbo actuator. I would imagine these would throw trouble codes and a competent shop should be able to figure it out
What is a dpf lolMake sure there are no blockages in the air intake system.
Do the South African models have a DPF? I am thinking that they do not have emissions systems.
Diesel Particulate Filter....any USA diesel built in 2007 or after had to have a DPF. Starting in 2010 most diesel vehicles got an additional system called Selective Catalyst Reduction or SCR. The SCR system relies on Diesel Exhaust Fluid to assist in the cleaning. I bet some of the newer South Africa Diesels have DPFs, not sure what year it was implemented there. The issue in SA is that it is hard to get diesel at less than 50PPM. DPFs do not like high PPM fuel.Thanks.
What is a dpf lol