Stäng
HOME
SIGN UP
LOG IN
THE LICENCE GAME
THE ROAD TO YOUR LICENCE
LICENCE THEORY
Prov TESTS Prov
ROAD SIGNS
FIND A TRAFFIC SCHOOL
GIFT VOUCHERS
LANGUAGE

Common theory questions

At what temperature do catalytic converters work efficiently?

Catalytic converters work at approximately 400-600 °C, which means two things:

  • There is a risk of fire. For example, it can be hazardous to park on a lawn with dry high grass, as catalytic converters are usually placed on the vehicle's undercarriage.
  • They are ineffective during cold starts – therefore use an engine pre-heater.