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The DPF light has come on in my car despite doing lots of miles - why has this happened?
I have a 2008 BMW 3 Series Touring 3.0d. I do 20,000 miles per year on A roads, at high speeds, and change the oil and filter very regularly. A diesel particle filter warning light has now come on. Why has this happened as the car has only done 89,000 miles?
Asked on 11 January 2018 by David goodall
Answered by
Honest John
The DPFs on these often fill up with ash from around 80,000 miles after which the DPF cannot passively or actively regenerate. I think you either need to send the DPF to Ceramex to be chemically cleaned or replace it (£400 - £1200).
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