Diesel Emissions Solutions – DPF Cleaning, Repair & EGR/AdBlue Service

As environmental regulations tighten, diesel emission systems have become mandatory on all new diesel vehicles. Unfortunately, these systems can cause a host of problems for end users, requiring regular maintenance to operate efficiently and sometimes malfunctioning, causing the vehicle to go into pesky ‘limp-mode’. If you’re experiencing these issues, our diesel mechanics can diagnose and repair the problem quickly.

At Willy’s, we get to the core of emission issues, making sure your engine runs cleaner, works smarter, and stays fully compliant. With us, you’ll enjoy better fuel economy, reduced emissions, and a smoother ride.

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DPF Cleaning, Repair & Replacement Services

If you’ve lost power, found your diesel to be thirstier than usual or had your vehicle enter ‘limp’ mode, chances are there’s a problem with emissions system, specifically, your DPF, EGR or Ad Blue system. When this occurs, you’ve got a couple of options.

DPF Cleaning

DPF’s typically gets blocked after approximately 60,000 km, which decreases vehicle performance and raises fuel consumption. The most effective solution for a clogged DPF filter is to have it cleaned professionally.

DPF Replace

Replacing your DPF increases performance and improves fuel efficiency while keeping your vehicle compliant. Find out more below or get in touch to discuss your options.

DPF Cleaning, Repair & EGR Solutions

We clean, repair or replace blocked and faulty DPFs to restore flow, performance and economy – keeping your diesel running right and road-legal. A DPF delete (filter removal) is available for off-road, unregistered track vehicles only. Find out more below.

Why Emissions System Maintenance Matters

Emissions system maintenance is key to keeping your diesel running clean, powerful, and at its best. Regular servicing ensures peak performance, reduces pollution, and keeps you compliant with regulations.

Skip it, and you risk costly repairs and unnecessary downtime. With checks every 10,000 miles or 6 months, our team catches issues early – saving you both time and money.

Neglecting your emissions system can cause major damage, higher emissions, and even compliance headaches. That’s why we offer proactive solutions, including fuel filter replacements, DPF-safe service oils, professional DPF cleaning and repair, plus off-road DPF solutions, to keep your diesel running smoothly and reliably.

From selective catalytic reduction to diesel exhaust fluid, every component matters in your engine’s performance. At Willy’s Workshop, we focus on the details that keep your diesel strong, helping you avoid costly fixes down the road.

DPF Cleaning, Repair & Solutions

Your Diesel Particulate Filter (DPF) catches soot and harmful particles to keep emissions clean and help meet regulations. Over time it can clog up – reducing performance and triggering regeneration faults and limp mode. In most cases the right fix is a professional DPF clean, repair or replacement, restoring flow and performance while keeping your diesel road-legal.

For off-road and competition vehicles only, a DPF delete is also available – this removes the Diesel Particulate Filter and recalibrates the ECU to run without it. Please note a DPF delete is for off-road, unregistered vehicles only – not all modifications are road legal, so please check your state’s legislation for more info.

Maximise engine power

At Willy’s Workshop, we specialise in optimising your off-road vehicle’s performance through expert engine recalibration, along with diagnosing and repairing pesky issues for a fraction of the cost. With improved airflow and precise tuning, you’ll enjoy faster acceleration, greater power, and a smoother, more responsive ride.

Save big on repairs

With years of experience of fixing these costly systems, ensure you get it fixed right the first time. Don’t spend $10,000+ at the dealer. We Can diagnose, maintain and effectively repair the systems eliminating costly DPF issues like blockages, failed regenerations, and sensor failures so your diesel runs strong and trouble-free.

Boost power & cut fuel costs

Ready to save on fuel? By fine-tuning your engine and remapping your vehicle effectively, we reduce backpressure and improve combustion efficiency giving you more power, better mileage, and lower fuel costs.

EGR Repairs & AdBlue Repairs

The DPF, EGR and AdBlue are solutions designed to reduce emissions. Unfortunately, these systems suffer similar problems, leading to poor performance, endless regen cycles, and higher fuel use. At Willy’s, we clear the blockages with expert diagnostics and cleaning, so your engine runs clean and efficient. Our DPF, EGR and AdBlue work is carried out in-house at our Oxley (Brisbane) and Warana (Sunshine Coast) workshops, and pairs perfectly with a custom diesel tune to recover lost power.

EGR Repair
The biggest cause of EGR failure is the buildup of carbon from the exhaust, leading to clogged tubes and eventually causing the valves plunger mechanism to jam. In these instances, we’ll diagnose the cause of the problem, clear blockages and replace the valve — always using OEM parts or better.
AdBlue Repair
Faulty sensors, bad fluid, or system glitches can lead to poor performance or error codes. We recalibrate and repair your AdBlue system to keep your diesel in reliable condition, so you can keep your focus where it’s needed most.

Vehicles We Tune

Cars

Emission Control Systems Servicing, Maintenance & Repair 12

4x4s

US Trucks

Trucks

Equipment

Marine

Why trust your diesel with Willy’s Workshop?

Tired of your diesel struggling with blocked filters, poor fuel efficiency, or endless regen cycles? Too many mechanics throw in quick fixes that don’t last, leaving you with the same headaches down the road.

At Willy’s, we don’t do half-measures. We get the job done right the first time. Whether it’s cleaning, replacing or deleting, we provide solutions that work. Ensuring your emissions system is built for long-term performance.

With expert craftsmanship, fast turnaround, and solutions that last, we keep your engine running cleaner, stronger, and exactly how it should.

Willys Workshop

4.8

Based on 162 reviews

review us on

Claire Ryan

2 months ago

Thank you Willys Workshop for always giving me a clear outline of my car's mechanical status and always providing excellent car service and repairs when required.

Rosbo

2 months ago

Couldn’t recommend more,professional team with exceptional work

Ben Cooper

4 months ago

These guys are great. Called them up about my subaru diesel with an issue and they explained it and had it turned around and all sorted in a matter of days. Highly recommend.

Jay Black

5 months ago

Straight talk by Andrew… friendly… booked in sooner than I expected… excellent price for the service… job was completed promptly… very happy with the result… I highly recommend ‘Willy's Workshop’, Warana…

kurt calleja

6 months ago

Awesome place! Really good quality work.
My car had various gaskets, turbo and other stuff replaced by these guys and 2 years later its still all perfect.

Craig Peebles

6 months ago

Anthony at Warana displayed excellent knowledge and explained the process well.
Invoiced as quoted even though the job took longer than expected due to rusted nuts.
I offered to pay more but he declined.
Extremely pleased with the overall experience.
Top work!

Shane Claridge

6 months ago

Anthony and his team are great ti deal with, so happy to find a good solid workshop you can trust to not only take care of your car but also very reasonably price. Keep up yye great work team Willys

Murray Winship

6 months ago

Anthony was great, he fitted me in quick smart & the team performed a great servuce & clutch job for me. Professional & very reasonably priced, Willy’s Workshop is now my go-to for anything diesel & car related.

Thanks legends!

Glen Morgan

7 months ago

Had 2 service and mechanical jobs completed by willys and have been impressed with communication and honesty.

Chris Botha

8 months ago

Awesome service and advise from the team, they really know their diesel engines!

Gloria Darling

9 months ago

Outstanding service , 5 star all the way, helpful friendly staff in all levels from the owner, all other mechanics apprenticeses office staff, good pricing. I am a very happy customer. I would recommend this company to anyone.. Great work , great people.

Nicholas Tan

9 months ago

Sent it in for a tuning package on Monday, was told will see it Friday; recieved it Tuesday same week. Had a few things tweaked as well so hopefully I will not see some pestering problems resurface. Communication was clear and timely. Will come back again for a service.

Don’t let emissions issues slow you down—contact us now for the upgrade your diesel deserves!

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FAQs

Got questions about emissions solutions? We’ve got the answers! Check out our FAQ section to learn how we can help your diesel run cleaner, stronger, and more efficiently with our expert emissions upgrades.

What is the purpose of an emission control system?

An emissions control system keeps your diesel’s emissions in check, reducing harmful pollutants like soot and NOx, and ensuring your engine stays compliant with regulations. It helps your engine breathe easier, run cleaner, and deliver better performance without hurting the environment.

What are the benefits of emission control for heavy duty vehicles?

For heavy-duty vehicles, having a solid emissions control system isn’t just about compliance – it’s about boosting performance and saving you money in the long run. Cleaner emissions mean fewer problems with your engine, better fuel efficiency, and a longer lifespan for your vehicle.

How does emission control work on a heavy-duty vehicle?

In a heavy-duty vehicle, the emissions control system works by trapping and neutralising harmful particles before they hit the air. It’s all about filtering out soot (thanks to the DPF) and breaking down NOx gases (with an SCR system) using a chemical reaction. These systems are constantly monitoring and adjusting to ensure your diesel runs efficiently.

How do I know if my diesel needs an emissions control upgrade?

If you’re noticing sluggish performance, poor fuel efficiency, or frequent regeneration cycles, it’s a sign your emissions control system might be due for a repair. A clogged DPF, insufficient NOx reduction, or other system issues can drag down your engine’s power and cost you more in fuel and repairs. At Willy’s Workshop, we’ll diagnose your system, and if an upgrade is needed, we’ll get you back on track with a solution that restores your diesel’s performance and keeps those emissions in check.

What does it mean when the emission control system light comes on?

If you’re noticing sluggish performance, poor fuel efficiency, or frequent regeneration cycles, it’s a sign your emissions control system might be due for an upgrade. A clogged DPF, inefficient NOx reduction, or other system issues can drag down your engine’s power and cost you more in fuel and repairs. At Willy’s Workshop, we’ll diagnose your system, and if an upgrade is needed, we’ll get you back on track with a solution that restores your diesel’s performance and keeps those emissions in check.

What causes a fault in the emission control system?

A fault in the emission control system is typically caused by:

Faulty Oxygen (O2) Sensor – Incorrect air-fuel mixture.
Bad Mass Airflow (MAF) Sensor – Affects fuel combustion.
Malfunctioning Catalytic Converter – Increases emissions.
Loose/Faulty Gas Cap – Causes fuel vapor leaks.
EGR Valve Issues – Impacts exhaust gas recirculation.
Vacuum Leaks – Leads to incorrect air-fuel ratios.
Dirty/Faulty Fuel Injectors – Causes poor combustion.
EVAP System Leak – Releases fuel vapors.
Bad MAP Sensor – Affects engine load regulation.
Failing ECM – Disrupts emissions control.