Diesel vehicles equipped with a particulate filter have more efficient emission control. The particles in the exhaust gases are collected in the filter during normal driving.
When a DPF message is displayed, the filter requires a regeneration cycle to clean itself.
This requires the engine to have reached normal operating temperature. Regeneration takes place automatically at an interval of approximately 300-900 km (190-560 miles) depending on driving conditions.
Regeneration procedure
The regeneration procedure produces high temperatures in the DPF. Heat can be felt radiating from beneath the vehicle, which is normal. The heat generated could be sufficient to start a fire when in close proximity to combustible material such as long dry grass, paper etc.
Regeneration normally takes 10-20 minutes and is best achieved if the vehicle is driven steadily at speeds between 60km/h (40mph) and 112km/h (70mph).
Regeneration may take longer if the average speed is reduced to 50km/h (30mph).
Driving short distances or in cold weather
In these conditions the engine may not reach normal operating temperature. Regeneration of the diesel particulate filter will not take place and the filter will not be cleaned. If the filter requires regeneration but current driving style is not appropriate to perform it, a warning triangle will illuminate on the instrument panel and the message DPF Full. See manual, will be displayed. This does not indicate a fault condition. Start regeneration by driving the vehicle, preferably on a main road or motorway. The vehicle should be driven for approximately 20 minutes more.
When regeneration is complete, the warnings will clear.