DPF cleaning
Diesel particulate filter diagnostics, cleaning and flow testing in our Auckland workshop, to restore performance and help avoid an expensive replacement. For trucks, utes, machinery and commercial vehicles, with courier-in cleaning from anywhere in New Zealand.
DPF cleaning from $395 incl. GST. Price depends on the vehicle and filter. Removing and refitting the filter is extra, or bring the filter in on its own.
Why Simms for DPF cleaning
- 01DPF specialists
Diesel particulate filter diagnostics, cleaning and testing for trucks, utes, machinery and commercial vehicles.
- 02Cleaning and flow testing
Specialist equipment removes soot, ash and oil, then flow testing confirms the filter is working properly.
- 03Built around downtime
A structured process to keep trucks, machinery and fleet vehicles running.
- 04Tested before it leaves
Every DPF is inspected, cleaned and tested before it goes back to you.
Warning light on, losing power or using more fuel?
A blocked DPF can cause power loss, higher fuel use, warning lights and limp mode. An inspection and flow test shows how blocked it is and whether cleaning will fix it.
Common signs your DPF needs cleaning
- DPF or check engine warning light
- Loss of power or limp mode
- Higher fuel use
- Frequent regenerations
- Excessive exhaust smoke
How we clean a DPF
- 01Inspect and flow test
We measure restriction and back-pressure first, to confirm cleaning is the right fix.
- 02Clean
Specialist DPF cleaning equipment removes soot, ash and oil residue to restore airflow.
- 03Re-test and return
We re-test to confirm flow is restored before it goes back to you.
Request a DPF inspection
Tell us the vehicle, engine and symptoms, and whether you're bringing the vehicle or just the filter. We'll recommend the most cost-effective cleaning or repair after testing, and usually reply within one working day.
DPF cleaning questions
Another question? Call +64 9 579 1159.
How much does DPF cleaning cost?
DPF cleaning starts from $395 incl. GST. The price depends on the vehicle and filter. Removing and refitting the filter is extra labour.
Can I bring in just the filter?
Yes. Bring the DPF in on its own, or courier it from anywhere in NZ, and we'll clean and flow test it.
How do I know if my DPF is blocked?
Common signs are power loss, higher fuel use, a DPF warning light, frequent regenerations, excessive smoke or limp mode.
How long does DPF cleaning take?
Most jobs take 1–2 working days, depending on the blockage, testing and vehicle.
Is cleaning cheaper than replacing a DPF?
In most cases, yes. Cleaning usually costs much less than a new filter and restores exhaust flow.
Does the DPF need to come off the vehicle?
Yes, so it can be cleaned and flow tested properly. We can remove and refit it (extra labour), or you can bring the filter in on its own.
Do you clean DPFs for trucks and machinery?
Yes: trucks, utes, commercial vehicles, agricultural and industrial machinery.
Where is the workshop?
77 Leonard Road, Mount Wellington, Auckland 1060. Monday to Friday, 8am to 5:30pm.
Other workshop services
Need a part as well?
We hold far more diesel parts than we list online. If we don't have it, we can usually source it.