AdBlue
AdBlue is a colourless liquid consisting of 32.5% urea in deionised water and is manufactured in accordance with the ISO 22241 standard. It is specially developed for SCR cleaning technology for diesel engines.
AdBlue has its own tank in the car which is topped up via a separate filler pipe behind the fuel filler flap. Consumption depends on driving style, outside temperature and the operating temperature of the system.
Conditions for driving with AdBlue
There must always be AdBlue of the correct quality in the AdBlue tank before the car can be started. The SCR system is very sensitive to contaminants. The emission control system continuously monitors the tank level, quality and dosage of AdBlue. If something is wrong, a message is shown on the driver’s display.
Petrol particle filter
When driving short distances at low speeds in a petrol car
The capacity of the emissions system is affected by how the car is driven. Driving varying distances and at different speeds is important in order to achieve performance that is as energy-efficient as possible.
Driving short distances at low speeds (or in cold climates) frequently, where the engine does not reach normal operating temperature, can lead to problems that can eventually cause a malfunction and trigger a warning message. If the vehicle is mostly driven in city traffic, it is important to regularly drive at higher speeds to allow the emissions system to regenerate.
- The car should be driven on A-roads at speeds in excess of 70 km/h (44 mph) between each refuelling.
Diesel particulate filter
Particles in the exhaust gases are collected in the diesel particle filter during normal driving. When these conditions have been met, regeneration starts to burn off the particles and empty the filter. To start regeneration, the engine must have reached normal operating temperature. Regeneration of the particulate filter is automatic and normally takes 10-20 minutes.
- a smaller reduction in engine power may be noticed temporarily
- fuel consumption may increase temporarily
- a smell of burning may arise.
Use the parking heater in cold weather – the engine then reaches normal operating temperature more quickly.
When driving short distances at low speeds in a diesel car
The capacity of the emissions system is affected by how the car is driven. Driving varying distances and at different speeds is important in order to achieve performance that is as energy-efficient as possible. Driving short distances at low speeds (or in cold climates) frequently, where the engine does not reach normal operating temperature, can lead to problems that can eventually cause a malfunction and trigger a warning message. If the vehicle is mostly driven in city traffic, it is important to regularly drive at higher speeds to allow the emissions system to regenerate.
- The car should be driven on A-roads at speeds in excess of 60 km/h (38 mph) for at least 20 minutes between each refuelling.