DPF issue
 

Hello,

We recently purchased a 2010 V50 1.6D and soon after the check engine light came on. Diagnostics indicated issues with the DPF; the car has done 124000 miles and was still on the original DPF so we replaced the DPF, fluid tank, pump and fluid with genuine Volvo parts.

We have had approximately 6 months of fault free driving (although we have replaced the clutch too) and now the check engine light is back on. Diagnostics show that the DPF is blocked and can not be cleaned but also pump signal too high and pump signal too low.

I assume that the cleaning fluid pump is the issue but where should we look now bearing in mind that a new pump has been installed.

Thank you in advance.