DPF Cleaning, EGR & AdBlue Repair
Blocked DPF, EGR faults, AdBlue/SCR warnings or stuck in limp mode? We diagnose, clean, repair and replace diesel emissions hardware — DPF, EGR and AdBlue/SCR — at our Oxley and Warana workshops, restoring power, economy and reliability and keeping your vehicle road-legal.
A diesel particulate filter (DPF) traps soot from the exhaust and burns it off during regeneration. Short trips, a faulty sensor or an underlying EGR or injector problem can stop that happening — the filter blocks, the dash lights up and the engine drops into limp mode. We measure the soot and ash load, clean or force-regenerate the filter where it’s viable (far cheaper than a new filter), and fix the underlying cause so it doesn’t simply block again.
The EGR valve recirculates exhaust gas to lower combustion temperatures, and over time it clogs with carbon — causing rough idle, hesitation, poor economy and fault codes. We clean and refit a serviceable valve, or replace a failed one with a quality part, then clear the faults and confirm the system is operating correctly. On vehicles that use AdBlue/SCR, we go further than a code reset: faulty sensors, contaminated fluid or dosing faults that trigger AdBlue warnings and countdowns are diagnosed, recalibrated and repaired so the system works correctly and your diesel stays road-legal.
Every job starts on the diagnostic scanner: we read the live soot and ash load and pull the fault history before touching anything, so you’re not paying to clean a filter that actually has a sensor or injector fault behind it. Where the filter is recoverable we force-regenerate and clean it on-car — usually the same day, and far cheaper than replacement (a new OEM DPF for a common ute or 4WD can run $1,500–$4,000+). If it’s genuinely beyond saving we’ll tell you straight and quote your options. You get a firm price after the diagnostic check, before any work goes ahead.
DPF, EGR & AdBlue services we provide
Why choose Willy’s for DPF, EGR & AdBlue
DPF Cleaning & Regeneration
Forced regeneration, on-car DPF cleaning and blocked-filter restoration for diesel utes, 4WDs and trucks.
- Soot-blocked & limp-mode DPFs restored
- Forced regeneration & on-car cleaning
- Root-cause diagnosis, not just a reset
EGR Cleaning & Replacement
EGR valve cleaning, repair and replacement to clear carbon build-up, rough idle and fault codes.
- Carbon-clogged EGR valves cleaned or replaced
- Rough idle, hesitation & codes fixed
- AdBlue/SCR fault diagnosis available
AdBlue & SCR Repair
AdBlue/SCR system faults diagnosed and repaired — sensors, dosing and fluid issues that trigger warnings, countdowns and limp mode.
- AdBlue warning lights & countdowns resolved
- Faulty sensors, dosing & fluid faults repaired
- Factory SCR system kept correct & road-legal
Signs your DPF, EGR or AdBlue system needs attention
If you’re seeing any of these, book a diagnostic before it turns into turbo or injector damage.
- Amber DPF warning light or a “DPF full” message
- Engine in limp mode or a sudden loss of power
- Black smoke under acceleration
- Noticeably worse fuel economy
- Failed or constantly repeating regenerations
- Rough idle, hesitation or surging (often the EGR)
- Rising oil level or a fuel smell in the oil
- AdBlue / SCR warning light or countdown
Diesel vehicles we service
From cars to marine, we clean and repair DPF and EGR systems across the lot:
Popular models we see most often:
- Toyota HiLux, LandCruiser & Prado
- Ford Ranger & Everest
- Isuzu D-Max & MU-X
- Mazda BT-50
- Nissan Navara
- Mitsubishi Triton & Pajero Sport
- Volkswagen Amarok
- Holden Colorado & Trailblazer
- Land Rover Defender & Discovery
- European diesels & light trucks
Why drivers trust Willy’s Workshop

DPF, EGR & AdBlue FAQs
Can you clean a blocked DPF instead of replacing it?
How much does DPF cleaning cost?
How long does it take?
What makes a DPF keep blocking?
What is the difference between DPF cleaning and regeneration?
Do you clean or replace EGR valves?
Can I keep driving with a blocked DPF?
Will this clear my limp mode or emission light?
Do you keep my emissions system standard?
Can you fix an AdBlue or SCR fault?
Book your diesel in
We diagnose, clean and repair diesel emissions systems across South-East Queensland — choose the workshop nearest you.
Diesel engine & emissions articles
Running a fleet of utes, trucks or machinery? Ask about our fleet maintenance plans with priority booking and one point of contact.

