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DPF Regeneration
OK - Daft question, but how is my DPF ever going to regenerate. I read everywhere that I need to go for a good 30 minute run at above 2500 RPM, however, to do this in a 330d Auto you need to be tanking it at 90 MPH. That can't be right - do I need to lock it in 4th and do a 30 min run? Not easy on Cornish roads!
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