- How to choose a DPF cleaning machineDecide in order: the largest filter you need to clean, where the machine will work, how much of the job you want it to do for the technician, and what your site can supply. The guide shows where the METClean E, S, V, XL Multi+ and DPF Lite fit, with worked examples and the factors that decide whether a machine pays.
- Questions to ask before you buyA pre-purchase checklist to put to every supplier, including us. Each question says why it matters and what a good answer looks like, from paperwork and adaptors to running cost, waste, warranty and what the price includes.
- Site requirements for a DPF cleaning machineWhat has to be in place before delivery: space and handling, an electrical supply fitted by an electrician, compressed air that keeps up, water, and an approved route for waste. It covers van installations and who needs training, and explains which figures are confirmed per installation.
- What DPF cleaning can’t fixWhen a clean is the wrong answer: cracked or melted filters, oil and coolant contamination, sensor faults and the engine problems that block filters again. It also sets out the limits of on-vehicle treatment and of drying a filter off the vehicle.
- GlossaryPlain definitions of DPF, DOC, SCR, regeneration, back-pressure, soot, ash, closed-loop water and the other terms the guides use.
How the machines themselves work
The technology guides explain the cleaning process step by step, how wash water is filtered and reused, and what a before-and-after pressure test can and can’t show. The comparison sets the machines side by side from the same product data as these guides.
Still deciding?
See a machine running on your own filters, or ask for a quote.