DPF sensor

[Midnightsparkle]

Hi all, the DPF sensor needs replacing on my T6.1 at 56k miles. The garage have done the diagnostics and say it's going to be £540 Inc VAT. This includes the diagnostics fee.

Please could someone give me some confidence that this amount is a reasonable amount to pay for this. I really have very little clue about anything engine-related and just don't want to get ripped off.

Thanks