Gazwould

Common issue on the rear normally replaced under warranty if applicable .

If there was they've obviously died !

Granted they're similar but it's 100% i40 !

In short this issue is an ECU software problem causing multiple failed regens . Diesel is injected post combustion cycle into the exhaust to super heat the DPF when it burns there instead . Some diesel fuel naturally gets past the piston rings via the cylinder bore liners and into the oil sump , just a bad idea and a hurried rushed design and more developed have a 5th injector post engine like Adblue systems that treat NOx . So a new ecu or software remap fixes . Even more reason to go Stage 1 , DPF and egr out even more beneficial . Hyundai are clueless because they don't want to admit a problem that makes them legally liable , like VAG got away with denial with the inferior 2.0 TDI 77mm hex key oil pump drive that would kill a turbo and engine coupled with a useless low oil pressure warning that didn't operate below 2000 rpm . Most failing post 3 year / 60K warranty . This oil pump cassette drive key at the other end had a mere 15mm balancer shaft contact length which caused play and both key and keyway wore until drive was lost which was later sorted as increased to 35mm contact length with a longer key and deeper keyway . To increase something by over double in engineering terms is massive .

On top of that gut dpf , remap to Stage 1 with egr written out and gain an additional 6 mpg .

Better than the alternative...

Stop start is a bad thing so good . Remapping is excellent , for best results dpf and egr delete .

Sounds an interesting vehicle , can you break it down , tax , costs , pro, con , what you like , etc.

Cheers , how are you keeping buddy ? Shame about the forum being 99% streaming spam

Common issue .

How long was the fuel filter not serviced for ?

The old boys 1.7 crdi only seems to get to 80 and not the 12 o'clock 90°C position . Normal or new thermostat required ?

Car dealer licence , lol . The only licences you need is a driving and Credit Consumer if doing finance .

That is the case .

It's not for the tuned ear , rear even worse as it lacks components , even a 15 year old car has rear components ! Any ice can be improved on , better speakers , panel damping etc .