Hi all,

Have a problem with my car, for the second time.Background= Its a bmw x3 diesel 3SD. It has a diesel particulate filter. I drive to work each day 6 miles there 6 miles back. It does long journeys fairly often. 400 miles last friday. Yesterday when driving home the engine warning light came on "amber". called the garage and booked it in.

This is the second time its happened- the last in March. last time they changed a relay switch and a glow plug. On checking my oil last month it was right up to the maximum mark so my husband draining some out to reduce it to its normal level.

From what i can gather and what i have read about the DPF on long, up to full temperature journeys the dpf regenerates itself. on shorter journeys it injects fuel into the engine to get hotter and that regenerates it. but it seems on mine the extra added fuel is just going into the engine and staying there.

Im concerned firstly that the oil is diluted and secondly that i could end up blowing the engine up. I intended to have this car along time and now worried that with short journeys im wrecking it.

Not sure what to expect of bmw here, should the dpf be replaced?

Any help or advice welcome.

Thanks