bcef

Particulate filter systems rely on effective glow plugs to work properly. If the glow plugs are not working they can affect the system. To get the full story, see the Straight Six magazine for April, published by the BMW Car Club GB. There is a full article on the subject. In the meantime, either take your car on a 40 mile 70MPH drive on a motorway or park it where its safe and run it for 20 minutes at 1500 revs. This should shift the soot from the pariculate filter, and clean up the glow plugs. Diesel cars ove 40K miles have problems with both particulate filters and glow plugs - not only on BMWs but on all cars. I would never buy a diesel powered car. Get a petrol one and switch it to gas. No dirt in yiur exhaust then, and an E38 728i will do the equivelant of 55 to 65 MPG. Costs around 2 grand but I usually get my money back after about 8 months. On my 4th conversion in about 280K miles.