2024
The EGR valve reduces pollutant emissions by reinjecting exhaust gases. It clogs up over time and needs replacing, at a cost of between €100 and €200, plus labour. Second-hand models cost between €15 and €75, but need to be cleaned thoroughly to ensure they last as long as possible.
Cordierite vs Silicon Carbide: A guide to choosing between DPF and high quality catalytic converters
If you need to replace your car's diesel particulate filter or catalytic converter, the choice between silicon carbide and cordierite is crucial. Opt for silicon carbide for better filtration quality and longer life. Cordierite, although cheaper, offers slightly lower performance. Choose quality materials to avoid premature breakdowns and optimise your vehicle's performance.
The article warns against buying second-hand catalytic converters for cars because of uncertainty over their condition, the risk of increased pollution, and the extra costs involved in removing them. It recommends opting for new catalytic converters to ensure better durability and performance.
Since the 1990s, the automotive industry has incorporated catalysts, AdBlue and measures to combat CO, HC and NOx in order to reduce its environmental impact, but the Euro 7 standards could pose new challenges.
