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the DPF will need to be replaced, not cleaned.
an aftermarket filter can be had for about £250
a BMW filter will cost £700
labour will be 1-2 hours at the garage labour rate
.Please let me know if you have further questions. Please do not forget to click a positive rating as this is the only way I receive credit for my answer, thank you. Best wishes with your vehicle.
you are welcome, please kindly CLICK ON a positive rating