Exhausts and after treatment
Manifolds, silencers, catalytic converters & particulate filters
Service Description
Catalytic converters chemically promote the further reaction of unburnt combustion gasses (primarily excess carbon monoxide) to non-toxic carbon dioxide. While efficiency can reduce over time, the main cause of catalyst failure is excess oil consumption and over-fuelling. Both conditions lead to droplets forming on the catalyst's surface, reducing its effective area. In most cases this can be chemically cleaned, but in some extreme cases, it may cause such significant fouling that the catalyst must be replaced to restore the vehicle's emissions to permissible standards. Particulate filters are found on modern diesel and petrol vehicles, they trap microscopic soot particles that are formed during the combustion process. As fuel mixtures becomes rich (more fuel than air) the resulting combustion produces more soot than the ideal perfect burn. While all combustion produces some microscopic soot, particulate filters remove the vast majority to maintain clean exhaust emissions with minimal fuel consumption. In any case where exhaust emissions are outside the specifications set by the manufacturer, we will always address the cause of any component failure first, to prevent the premature failure of the replacement. If your vehicle has a particulate filter light illuminated, has failed on emissions or has an exhaust leak, book an appointment today.