Does DPF regeneration make a noise?
After repeated short drives in a diesel does DPF regeneration make a noise and raise the engine rpm?
Asked on 27 July 2019 by Dave Jones
Answered by
Honest John
You might then get active regeneration that basically uses post injected diesel to start a fire in the DPF to burn off the soot and the noise will be the electric cooling fan coming on to try to cool the car down.
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