Catalyst types
Ceramic catalysts
The most common type on the Polish market. A porous ceramic substrate coated with platinum, palladium and rhodium.
A ceramic catalyst substrate is a cordierite honeycomb coated with a thin layer of precious metals. It is light, brittle and relatively easy to identify — once the housing is cracked open you see a light grey or beige material. This is the most common type in European and Asian cars from the 2000s onward.
How to identify
- Substrate cracks and crumbles on impact
- Light grey or beige colour
- Lighter than the metallic type
- Housing usually steel, powder-coated
Most often found on
- Volkswagen, Audi, Skoda, Seat (most petrol models)
- BMW 3 and 5 series (1998–2010)
- Toyota, Honda, Mazda
- Ford, Opel, Renault, Peugeot
Precious metals
Platinum (Pt), palladium (Pd), rhodium (Rh) — proportions vary by make and emission standard.
Indicative quote
PLN 380–980 per piece. Premium BMW, Audi, Mercedes — up to PLN 1,800.