Ni DPF

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Ni DPF As we are fully mobile Terraclean operator we come to your place. Prices for this amazing service varies from model to model.

Specialists in DPF & Carbon Cleaning | Oxyhtech Off-Vehicle DPF Cleaning | TerraClean Carbon Cleaning | GDi Cleaning System | Advanced Vehicle Diagnostics | Tuning Boxes | Bespoke Performance Tuning & Remapping | Expert DPF Testing & Assessments| Ni DPF | Contact us with your vehicle details and we will be happy to quote you. From start to finish a service will be completed within 2 hours. It will give you the improved drive away difference,

🚗 2012 Honda CR-V 2.2 Diesel – 169,000 Miles – DPF Issues!Another higher-mileage vehicle through our workshop, proving j...
14/10/2026

🚗 2012 Honda CR-V 2.2 Diesel – 169,000 Miles – DPF Issues!

Another higher-mileage vehicle through our workshop, proving just how important proper diagnostics and live data analysis really are.

These Honda engines don’t always produce fault codes to highlight underlying issues, which is why checking live data is essential.

🔍 Our Initial Assessment:

DPF exhaust back pressure was reading 30 mbar at idle, indicating a restricted filter.

Given the vehicle’s mileage and likely ash accumulation, our preferred recommendation was to remove the DPF for professional off-vehicle flash cleaning.

However, the owner plans to change the vehicle soon and understandably wanted to keep costs down.

After discussing the available options, they decided to proceed with our four-stage on-vehicle DPF cleaning service.

✅ The Results:

🔴 Before cleaning: 30 mbar

🟢 After cleaning: 9 mbar

That’s a 70% reduction in exhaust back pressure!

Following a short initial road test, the vehicle was taken on an extended road test to check its performance and confirm the improvement.

While on-vehicle cleaning cannot remove accumulated ash, it can still provide a worthwhile improvement in the right circumstances.

Not every DPF problem requires the same solution. We assess each vehicle individually and recommend the most appropriate options based on its condition, mileage and the owner’s circumstances.

🔧 Got DPF issues? Get it properly assessed!

📞 028 9600 9602

🌐 www.NiDPF.com

Ni DPF & Carbon Cleaning Specialists

🚐 2015 Ford Transit Custom – DPF Problems Resolved! 🔧Another Ford Transit Custom arrived with a badly restricted DPF and...
13/10/2026

🚐 2015 Ford Transit Custom – DPF Problems Resolved! 🔧

Another Ford Transit Custom arrived with a badly restricted DPF and excessive exhaust back pressure.

The vehicle was also struggling to reach the exhaust temperatures required for successful DPF regeneration.

🔍 Our diagnostic assessment identified the underlying problem – a blocked exhaust vapour valve.

This valve plays an important role in helping the exhaust system reach the temperatures needed for DPF self-cleaning.

✅ DPF removed for professional off-vehicle flash cleaning
✅ Blocked exhaust vapour valve issue resolved
✅ Exhaust back pressure restored to normal levels
✅ Vehicle back on the road and driving as it should!

The important point?

Simply cleaning the DPF without addressing the underlying fault would likely have resulted in the same problem returning.

At Ni DPF & Carbon Cleaning Specialists, we don’t just clean DPFs – we investigate why they became blocked in the first place.

📞 028 9600 9602
🌐 www.NiDPF.com

DPF Problems? Get it properly diagnosed!

🚗 ANOTHER LAND ROVER DISCOVERY SPORT WITH DPF ISSUES!But the blocked DPF is only part of the problem! ⚠️This Land Rover ...
10/10/2026

🚗 ANOTHER LAND ROVER DISCOVERY SPORT WITH DPF ISSUES!

But the blocked DPF is only part of the problem! ⚠️

This Land Rover Discovery Sport arrived with a heavily blocked Diesel Particulate Filter (DPF).

With 124,000 miles on the clock, ash accumulation is also a significant consideration. Unlike soot, ash cannot be removed through regeneration.

In this case, the most effective alternative to replacing the DPF is to remove it from the vehicle and professionally flash clean it using our Oxyhtech cleaning system.

🔍 BUT WHAT CAUSED THE DPF TO BECOME BLOCKED IN THE FIRST PLACE?

Our diagnostic investigation identified several issues:

❌ 3 faulty glow plugs

❌ Piston cooling jet fault

❌ Engine service required

❌ Engine oil contaminated through diesel dilution

These issues can interfere with the vehicle’s ability to carry out successful DPF regenerations.

And this is where proper diagnosis becomes just as important as the cleaning itself!

Simply cleaning a blocked DPF without identifying and addressing the underlying faults can leave the vehicle unable to regenerate correctly.

The result? A DPF that becomes blocked again, potentially costing the owner hundreds or even thousands of pounds in further repairs.

At Ni DPF & Carbon Cleaning Specialists, we don’t just focus on clearing the blockage.

We investigate WHY the DPF became blocked and what needs to be done to help prevent it happening again.

✅ Comprehensive DPF assessments

✅ On & off-vehicle DPF cleaning

✅ Fault diagnosis and investigation

✅ Professional Oxyhtech flash cleaning

Remember: A clean DPF is only part of a successful repair. Identifying and correcting the root cause is equally important!

🚗 GOT DPF ISSUES?

📞 028 9600 9602

🌐 www.NiDPF.com

🚨 “WE FORCED A REGEN… BUT IT DIDN’T WORK!” 🚨We’re now receiving at least 2–3 phone calls every week from vehicle owners ...
09/10/2026

🚨 “WE FORCED A REGEN… BUT IT DIDN’T WORK!” 🚨

We’re now receiving at least 2–3 phone calls every week from vehicle owners telling us exactly this!

Our advice? Put the diagnostic tool down and get the vehicle properly assessed BEFORE pressing that button!

⚠️ FORCED DPF REGENERATIONS ARE NOT A MAGIC FIX!

Here’s what you need to understand:

❌ They only burn off soot – They do NOT remove accumulated ash.

❌ They don’t fix the underlying problem – Whatever caused the DPF to become blocked in the first place may still be there.

❌ They can cause expensive damage – Attempting a forced regeneration on a severely restricted DPF can result in dangerously high exhaust temperatures and potential damage to the DPF and other components.

❌ They can contribute to oil dilution – Diesel entering the engine oil can compromise lubrication. Oil condition and level must be checked, and an oil and filter change may be required.

💷 And here’s the expensive part…

You could end up paying for a forced regeneration, an oil and filter change, and STILL have exactly the same problem you started with!

🔧 AT NI DPF & CARBON CLEANING SPECIALISTS, WE NEVER CARRY OUT FORCED REGENERATIONS.

We believe in diagnosing the problem properly rather than simply clearing fault codes and hoping for the best.

✅ Comprehensive DPF assessments

✅ Exhaust back-pressure testing

✅ Investigation of the underlying cause

✅ Professional on-vehicle and off-vehicle DPF cleaning where required

OUR ADVICE IS SIMPLE:

DIAGNOSE FIRST. DON’T JUST PRESS REGENERATE!

📞 028 9600 9602

🌐 www.NiDPF.com

📍 Kilrea, Northern Ireland

NI DPF & Carbon Cleaning Specialists

Correct Diagnosis. The Right Repair. No Guesswork.

🔧 2013 Vauxhall Vivaro 2.0 CDTi – DPF & Boost IssuesAnother example of why correct diagnosis is so important!This Vivaro...
08/10/2026

🔧 2013 Vauxhall Vivaro 2.0 CDTi – DPF & Boost Issues

Another example of why correct diagnosis is so important!

This Vivaro came to us with various faults relating to the DPF and boost system.

The vehicle had previously been to another garage, where a vacuum boost control solenoid had been replaced in the hope of restoring boost pressure and extinguishing the warning lights.

The owner had also been advised that the DPF was blocked and required cleaning.

Not entirely convinced, the owner’s son contacted us for a second opinion.

🔍 Here’s what our diagnostic investigation uncovered:

Using our smoke testing equipment, we identified a split boost pipe, resulting in a loss of boost pressure.

However, we also noticed something unusual during our DPF assessment – extremely low exhaust back pressure readings.

Further investigation revealed that the DPF pressure pipe was also split, resulting in inaccurate pressure readings.

Once the defective pressure pipe was replaced, the DPF back pressure readings returned to normal, healthy levels.

✅ Split boost pipe identified using smoke testing.

✅ Split DPF pressure pipe identified through further investigation.

✅ Accurate DPF pressure readings restored.

✅ DPF confirmed to be operating within healthy pressure levels.

✅ No DPF cleaning required!

Two separate faults affecting the vehicle, neither of which required the DPF to be cleaned or replaced.

This is exactly why we carry out a proper diagnostic assessment before recommending any DPF cleaning.

Replacing parts or cleaning a DPF without identifying the underlying problem can be an expensive and unnecessary exercise.

🚗 Got DPF, emissions or performance issues?

📞 028 9600 9602

🌐 www.NiDPF.com

Ni DPF & Carbon Cleaning Specialists

Diagnose first. Clean only when required.

Two pretty much identical 2016 Toyota Avensis 1.6 diesels, both arriving with almost identical symptoms and faults.Both ...
06/10/2026

Two pretty much identical 2016 Toyota Avensis 1.6 diesels, both arriving with almost identical symptoms and faults.

Both were lit up like Christmas trees with multiple warning lights across the dash.

Even more annoyingly for the owners, when the fault occurred the engine management system also deactivated the automatic release of the electronic handbrake.

Despite the symptoms, neither vehicle required DPF cleaning.

✅ Correct diagnosis
✅ Faults identified & repaired
✅ No unnecessary DPF cleaning

Not every DPF or emissions warning means the DPF needs cleaned — correct diagnosis comes first.

Got vehicle emissions issues?

📞 028 9600 9602
🌐 www.NiDPF.com

TRADE & PUBLIC DPF CLEANINGTwo DPFs brought to us by trade customers for professional off-vehicle flash cleaning using o...
04/10/2026

TRADE & PUBLIC DPF CLEANING

Two DPFs brought to us by trade customers for professional off-vehicle flash cleaning using our Oxyhtech system.

Yes — you can bring us just the DPF for cleaning. No need to bring the complete vehicle.

Need it back in a hurry?
Our while-you-wait service is also available by arrangement.

Professional DPF cleaning for garages, motor traders and the public.

📞 028 9600 9602
🌐 NiDPF.com

🚙 Another Land Rover Discovery Sport with a badly blocked DPFThis vehicle arrived with excessive DPF back pressure, indi...
02/10/2026

🚙 Another Land Rover Discovery Sport with a badly blocked DPF

This vehicle arrived with excessive DPF back pressure, indicating a significant restriction.

Due to the mileage and this being an AdBlue-equipped vehicle, the safest and most effective cleaning option was to remove the DPF for an off-vehicle flash clean.

🔧 DPF removed
💦 Flash cleaned using our Oxyhtech system
📉 Exhaust back pressure successfully reduced
💻 DPF adaptations carried out
✅ Fault codes cleared
🛣️ Vehicle road tested

Once refitted, the DPF back pressure was restored to a normal level and this Discovery Sport is now performing as it should again.

Got DPF problems?

📞 028 9600 9602
🌐 www.NiDPF.com

🔥 94 mbar DOWN TO JUST 3 mbar! 🔥Great result today with this 2016 Mazda 6 2.2D, using our 4-Stage On-Vehicle DPF Cleanin...
28/09/2026

🔥 94 mbar DOWN TO JUST 3 mbar! 🔥

Great result today with this 2016 Mazda 6 2.2D, using our 4-Stage On-Vehicle DPF Cleaning System.

This Mazda arrived with seriously high DPF back pressure, measuring a massive 94 mbar at idle.

Following our 4-stage DPF cleaning process, we successfully reduced the back pressure to an impressive:

✅ BEFORE: 94 mbar at idle
✅ AFTER: 3 mbar at idle

The engine oil level was also found to be high due to failed DPF regenerations causing diesel dilution of the engine oil.

As part of the work carried out:

🔧 4-Stage On-Vehicle DPF Clean
🔧 Fresh engine oil & new oil filter
🔧 Vehicle road tested
🔧 DPF adaptations carried out
🔧 Final pressure readings checked

The result — DPF back pressure restored to a healthy level and the Mazda is back driving and performing as it should. 👌

⚠️ Got DPF issues?

Don’t just keep forcing regenerations — find out why the DPF is becoming restricted in the first place.

📞 028 9600 9602
🌐 www.NiDPF.com

Ni DPF & Carbon Cleaning Specialists

🔥 OFF-VEHICLE DPF CLEANINGFor DPFs with heavy soot and ash contamination, an on-vehicle clean isn’t always the right sol...
28/09/2026

🔥 OFF-VEHICLE DPF CLEANING

For DPFs with heavy soot and ash contamination, an on-vehicle clean isn’t always the right solution.

At Ni DPF, we offer professional off-vehicle DPF cleaning using our OXYHTECH hydrodynamic cleaning system.

The DPF is removed from the vehicle and cleaned separately, allowing us to tackle contamination that cannot be removed through normal regeneration or an on-vehicle clean.

✅ Removes soot & accumulated ash
✅ Restores DPF flow and reduces back pressure
✅ Suitable for heavily restricted or high-mileage DPFs
✅ Can help restore performance and regeneration intervals
✅ A cost-effective alternative to DPF replacement
✅ DPF is checked before and after cleaning

We don’t just clean the DPF and hope for the best.

Before recommending cleaning, we carry out a DPF Assessment to establish why the filter has become restricted. Faulty sensors, glow plugs, EGR faults, fuelling issues, overdue servicing and other engine or emissions faults can all contribute to DPF problems.

🔧 Filter-only cleaning available from £200
🔧 Removal, cleaning & refitting also available

📞 028 9600 9602
🌐 NiDPF.com

Ni DPF – DPF Cleaning Specialists

Address

Kilrea
Derry
BT445QU

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm
Saturday 9am - 1pm

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