Modern Diesel vehicles have a special type of exhaust silencer fitted known as a Particle or Particulate Filter (DPF). Over a period of time, these filters can start to become blocked and cause a reduction in power.
In most cases with German vehicles such as BMW, Audi, Volkswagen and Mini, the car’s own engine management senses this and automatically starts a process during driving to burn off the excess soot. Unfortunately this can also be stopped by the engine management system without the driver being aware.
Some people have had their DPF’s removed to get around the fault, but in February 2014, it will be included as a failure in the MOT test. This is due to the fact that it falls under the Governments ‘Road Vehicles (Construction and Use) Regulations (Regulation 61a(3))1, which states; ”To use a vehicle which has been modified in such a way will mean it no longer complies with the air pollutant emissions standards it was designed to meet.”
We here at David Paul of Warrington, are fully conversant with DPF problems and have vast experience of finding the cause as well as the solution to your vehicles DPF fault and in 90% of cases this can be without the need to replace the DPF, which can be expensive.
So if you live or work in Warrington and have DPF problems. Then contact us on the number below.
Advice for using BMW DTC system ( Always consult your owners handbook for a more detailed explanation).
1. Default position when you start the car:
The DSC+ system is active. The car has full stability and traction control. This means that the engine power will be cut if the driving wheels start to spin.
2. DTC on – Short press of the DTC button:
When you engage DTC, the DSC system remains active, but the limits at which it will intervene are increased. So the car will wheelspin a bit before engine power is reduced.
3. DSC+ off – Hold DTC button for more than 5 secs
This turns the traction and stability control systems off. The driver has full control and the engine power will not be reduced, no matter how much wheelspin you get or how far the car gets out of shape in a bend.
Officially, BMW state that DTC is for low traction situations, e.g. mud, gravel or ice. However, it’s pretty clear that it’s also designed to allow for a more sporting drive. Motoring journalists often describe it as emulating an electronic limited slip diff.