The Lean NOx Trap (LNT) system removes the nitrogen oxide in the exhaust gas. The smell can occur in the exhaust gas depending on the quality of the fuel and it can degrade NOx reduction performance, please use the regulated automotive diesel fuel.
Kia Cee'd JD Service Manual: Panoramaroof Assembly Repair procedures
Replacement
[Removal]
1.
Remove the roof trim.
(Refer to Roof Trim - "Roof Trim Assembly")
2.
Remove the roof antenna.
3.
Remove the movable glass.
(Refer to Panoramaroof - ...
Kia Cee'd JD Service Manual: Catalytic Converter Description and operation
Description
The catalytic converter of the gasoline engine is a three way catalyst. It oxidizes
carbon monoxide and hydrocarbons (HC), and separates oxygen from the oxides
of nitrogen (NOx).
...