A missing DPF can mean MOT failure.
Where a DPF was fitted when the vehicle was built, its absence results in an MOT failure. Missing, obviously modified or defective emissions equipment is a major defect.
Specialist off-vehicle DPF cleaning in Whittlesey for local garages, workshops and fleets. Straightforward advice, real equipment and a clear process.

Official guidance explains why a functioning DPF matters, what MOT testers check and why DPF removal is usually unlawful for road use.
Where a DPF was fitted when the vehicle was built, its absence results in an MOT failure. Missing, obviously modified or defective emissions equipment is a major defect.
Government guidance states that DPF removal almost invariably makes a vehicle illegal for road use. Potential fines can reach £1,000 for a car or £2,500 for a light goods vehicle.
DPFs capture harmful particles. Regeneration burns accumulated soot, while unsuccessful regeneration can lead to build-up, reduced performance and costly repairs.
Information only — neither GOV.UK nor DVSA endorses Prestige DPF Clean. No specific cleaning or MOT outcome is guaranteed.
DPF guidance ↗ · MOT inspection manual ↗
Prestige uses a dedicated MET CLEAN S machine for specialist off-vehicle cleaning — not a generic fuel additive treatment.
We discuss filter suitability first. Your repairing garage remains responsible for vehicle diagnosis, removal, refitting and testing.
How our process works ↗Tell us the vehicle, symptoms and filter details. We'll discuss the next sensible step and whether off-vehicle cleaning could be suitable.
Or email prestigeengines@icloud.com
Unit 6B, Fenland Industrial Estate
Station Road, Whittlesey
Peterborough PE7 2EY