Australian Car Repair Issues? Ask an Auto Mechanic for Answers ASAP
I'm not a Kia expert, but I do know my Holden product well.
Our diesel, and I'm sure others as well, have many problems with injectors, rail pressure sensors etc.
Does it ever put the engine light on?
What brand of fuel do you use?
And lastly, does your vehicle have a DPF?
A transmission problem could look like an engine problem AND vice versa.
Hope you get a remedy from Kia.