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HOW DPF CLEANING WORKS

Want To Avoid Replacing Your DPF?

Our diagnosis and 3-step engine carbon cleaning is your best option!

Faulty DPF warning light

Why does a DPF get clogged? There are numerous reasons why a DPF may become saturated ranging from incorrect driving habits to failed components such as sensors and EGR valves that must work correctly for the DPF to regenerate (clean itself out). The biggest mistake we see with DPF issues is incorrect or lack of diagnosis and assumption that simply cleaning the filter will resolve the problem. Until a DPF issue is diagnosed there is no point cleaning the filter. We have a great wealth of knowledge and specialise in the diagnostics of DPF systems. Our diagnostics includes live data analysis and manual filter pressure testing.


If required how do we clean the filter? We use a 2-step chemical system that is pressurised in through the DPF pressure sensor pipe directly into the DPF. This means in the majority of instances there is no requirement to remove the DPF for cleaning.

dpf pressure diagnosis

Step 1

The most important part of any DPF repair is to correctly diagnose the cause of a DPF fault. Our high level diagnosis is made using our leading DPF specialist experience and dealer level diagnostic tools to not only read fault codes but to also check and compare live data to manual data readings, including the pressure in the DPF so we can understand what has caused the problem. It is imperative a vehicle is correctly diagnosed in this manner. We will then discuss the results with you and the required service and/or replacement parts to get your vehicle back in a roadworthy condition.

dpf stage 1

Step 2

Assuming that your vehicle's DPF requires a clean we shall inject our stage-1 DPF cleaning chemical into the filter and leave it to dwell before then clearing it out of the filter along with all the soot by running the engine. A 2nd stage chemical is then used to further flush the DPF and ensure all soot is removed from the filter.

dps stage 2

Step 3

Finally, your vehicle's DPF system and pressure are thoroughly checked again before any engine management warning dash lights and fault codes are removed from the vehicle computer. If necessary we then finish with a test drive and/or forced regeneration to ensure the vehicle is now in good health.

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dpf diagnosis
dpf cleaning application

DPF Cleaning Services

Choose the best option for your vehicle

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DPF Regeneration

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We will make live data DPF checks and attempt a forced regeneration process using our dealer level diagnostics equipment. For most vehicles this can be completed stationary however some do require being driven for the regeneration process. PLEASE NOTE: Forcing a DPF regeneration will only work correctly if there are no faults and the soot and ash figures are low enough to allow the process to complete safely. If you opt for this service over a proper DPF clean service we cannot be held responsible for the outcome.


Price: £149.99


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DPF Regeneration
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DPF Cleaning

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We will complete a full DPF system diagnosis including live and manual data checks. We will then compress our step-1 cleaning chemical directly into the DPF filter to dwell for a period for on average 30 minutes before flushing it out. Once the cleaning chemical is cleared out of the filter we will use 2 lots of our step-2 DPF flush chemical to flush all the soot from the filter and exhaust system. Finally we will complete another full diagnosis and if required a test drive / forced regeneration to ensure the vehicle is in good health.



Price: £299.99


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DPF and carbon Cleaning

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As per option 2 for the full DPF diagnosis and clean plus a full 3-stage carbon clean as preventative measure to ensure your engine components such as the EGR valve and turbo are clean and operating correctly

Recommended


Price: £389.99


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Ask for Payment Assist
When you make your booking ask to spread the cost via Payment Assist. If you book online please ensure you call us in advance.

Unless pre-approved we require a minimum invoice value of £250 to take advantage of the Payment Assist service.

*The payment process is subject to approval by Payment Assist

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Processing your application with your technician on the day of the service.

*The payment process is subject to approval by Payment Assist

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Easy payment plan
Upon approval* your invoice is split into 3 equal payments . The first payment is processed on the debit card immediately and you are back on the road. The balance will be split over 2 further monthly payments.

Example: Invoice value £390 divided by 3 = 3 x £130 payments 0% Interest.

*The payment process is subject to approval by Payment Assist

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Modern Reviews Tabs | UKCC Auto Techs
Satisfied Customers
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Over 50,000 Satisfied UK Customers Since 2016

What Our Customers Say

Latest from all platforms
10
Posted 6 October 2026

High Standard of work

Just to say Matts work was to a high standard. He arrived early, focused on the task and did a great job. He completed all tasks required and ran a thorough check afterwards. Very reassuring! A genuine technician and people person. I have no concerns recommending Matt and his company.

Verified reviewer
Job location: KT22 Checkatrade
★★★★★

Booked Winston in today for a swirl flap bypass , one of the most genuine mechanics I've met . After his diagnosis, explained about the split intercooler pipe ( somthing my local garage could not discover ) and best to fix that first before proceeding with swirl flaps . Best £90 ive ever spent . I may need him again after fix of intercooler pipe for the bypass , but a big thank you for your honesty .

RH
Ryan Hague Sep 25, 2026
Trustpilot

Excellent service

I was really impressed with the information Jason provided me with. Nice to come across an honest company who put customers first! Highly recommend.

10
Posted 8 November 2025

Job well done

Thank you Matt, Arrived bang on time carried out arranged work to my Audi and a bit more and some great advice .

Verified reviewer
Job location: RH10 Checkatrade
★★★★★

Very professional job done by Matt. First day the car didn’t delete for some software issue but he promptly came over to re-do the job to make sure everything worked properly next day.

AM
Alan Moore Sep 22, 2026
Trustpilot

I had Technician Cristian Nicolaie come…

I had Technician Cristian Nicolaie come to my home on Friday morning to diagnose and clean my DPF filter and remove carbon build-up from the engine. From the moment Cristian arrived, he was polite, friendly and professional. He asked me a few questions about the car, explained what he was going to do and talked me through the possible cause of the problem. He also gave me some really useful advice on how to help prevent the problem from happening again. Cristian carried out the work professionally and got the car back to normal. The diagnostic test afterwards showed that everything was working as it should. What made this even more important to me was that I was due to go away that day and had to tow my caravan. After speaking with Cristian, he gave me complete confidence that the car was going to be okay — and he certainly didn’t disappoint. I towed my caravan with no problems at all, and the car performed perfectly. I live in the BS15 area, and I would have absolutely no hesitation in recommending Cristian Nicolaie to anyone experiencing problems with their car. If the other technicians within the company have the same level of professionalism, knowledge and customer service as Cristian, then I would happily recommend the company as well.

★★★★★
10/10
Read all reviews →
10
Posted 6 October 2026

High Standard of work

Just to say Matts work was to a high standard. He arrived early, focused on the task and did a great job. He completed all tasks required and ran a thorough check afterwards. Very reassuring! A genuine technician and people person. I have no concerns recommending Matt and his company.

Verified reviewer
Job location: KT22 Checkatrade
10
Posted 8 November 2025

Job well done

Thank you Matt, Arrived bang on time carried out arranged work to my Audi and a bit more and some great advice .

Verified reviewer
Job location: RH10 Checkatrade
10
Posted 14 August 2025

Full Carbon Clean and remap

I had the pleasure of meeting Matt today. He was on time, gave great advice, honest feedback, great sense of humour - everything you would want from your technician. Never makes you feel stupid. Explained how the remap works. I'm only disappointed he didn't take a picture of my car for his portfolio.

Verified reviewer
Job location: SL9 Checkatrade
10
Posted 9 June 2025

Cleaned DPF and engine very sufficient. Very happy with the service highly recommended.

Cleaned DPF and engine very sufficient. Very happy with the service highly recommended.

Verified reviewer
Job location: RH12 Checkatrade
10
Posted 9 June 2025

Egr issue resolved on my Audi in Kent

Very good and efficient

Verified reviewer
Job location: ME1 Checkatrade
10
Posted 20 May 2025

DPF and egr clean and reset

Great advice from Cristian the technician who advised and then did the job very well thank you very much.

Verified reviewer
Job location: NP44 Checkatrade
★ ★ ★ ★ ★
4.5/5
Read all reviews →
RH
Ryan Hague Sep 25, 2026
Trustpilot

Excellent service

I was really impressed with the information Jason provided me with. Nice to come across an honest company who put customers first! Highly recommend.

AM
Alan Moore Sep 22, 2026
Trustpilot

I had Technician Cristian Nicolaie come…

I had Technician Cristian Nicolaie come to my home on Friday morning to diagnose and clean my DPF filter and remove carbon build-up from the engine. From the moment Cristian arrived, he was polite, friendly and professional. He asked me a few questions about the car, explained what he was going to do and talked me through the possible cause of the problem. He also gave me some really useful advice on how to help prevent the problem from happening again. Cristian carried out the work professionally and got the car back to normal. The diagnostic test afterwards showed that everything was working as it should. What made this even more important to me was that I was due to go away that day and had to tow my caravan. After speaking with Cristian, he gave me complete confidence that the car was going to be okay — and he certainly didn’t disappoint. I towed my caravan with no problems at all, and the car performed perfectly. I live in the BS15 area, and I would have absolutely no hesitation in recommending Cristian Nicolaie to anyone experiencing problems with their car. If the other technicians within the company have the same level of professionalism, knowledge and customer service as Cristian, then I would happily recommend the company as well.

MS
MR SHANE SMITH Sep 6, 2026
Trustpilot

Ukcc auto techs Christian attended my…

Ukcc auto techs Christian attended my property to diagnose my van which had dpf issues and a ad blue problem. Christian was very informative explaining what was happening with my van. Christian then proceeded to clean the dpf and the ad blue fault was very professional explaining the process at all times. I would recommend Christian to anyone who has problems with there dpf or any ad blue faults thanks again Shane

AG
Ariane Grimshaw Aug 21, 2026
Trustpilot

Extremely happy with the service…

Extremely happy with the service Cristian provided - he was knowledgeable, professional and efficient. Would highly recommend!

KI
Kirsty Aug 20, 2026
Trustpilot

I had a stage 3 clean done today

I had a stage 3 clean done today. The gentleman was very polite and knowledgeable. Very good service. Would recommend to others.

RR
robert righton Aug 20, 2026
Trustpilot

Christian DPF repair

Christian arrived as planned and was very helpful in explaining the diagnostics and what was needed Repair work carried out promptly I had a further issue later in day and Christian met me in evening to sort that issue also at no extra cost Highly recommend him and will be using him again if needed Rob

★★★★★
4.4/5
Read all reviews →
★★★★★

Booked Winston in today for a swirl flap bypass , one of the most genuine mechanics I've met . After his diagnosis, explained about the split intercooler pipe ( somthing my local garage could not discover ) and best to fix that first before proceeding with swirl flaps . Best £90 ive ever spent . I may need him again after fix of intercooler pipe for the bypass , but a big thank you for your honesty .

★★★★★

Very professional job done by Matt. First day the car didn’t delete for some software issue but he promptly came over to re-do the job to make sure everything worked properly next day.

★★★★★

Thank you for the 5-star rating, Thomas! We’re delighted you had a great experience and appreciate your support. We look forward to welcoming you back soon.

★★★★★

best work ...

★★★★★

Thank you Christian being so prompt in coming to fix and diagnose the problem I have with my vehicle , service was very prompt with excellent knowledge behind him . I would definitely recommend Christian 100% . Will definitely recommend and use him again . Thankyou for your help

★★★★★

Perfect job thank you so much

Faq

Depending on how heavily clogged the DPF is a full diagnosis and clean will take on average from 90 – 120 minutes.

The DPF is simply a filter, there are many reasons it can clog up. The most common myth is that it’s clogged because of driving only in the city and not on the motorway. Although this can be a cause there is more often than not an underlying fault that has caused the DPF to clog up. It is therefore imperative that a correct diagnosis is made and any faults are repaired that could impede the DPF system from working correctly. Assuming all faults are resolved then yes cleaning the DPF will resolve a DPF fault.

Emissions requirements for new vehicles require Particulate Filters to be fitted to the exhaust of diesel vehicles since the ‘Euro 5’ standards were enforced in 2009. Before this many vehicles also had a DPF fitted in anticipation of the change to regulations. This ‘Euro 5’ and beyond standards aim to deliver reductions of >80% in soot (diesel particulates). However, these filtration systems are not without problems causing DPF warning lights, engine limp mode safety activation, reduced efficiency/mpg and poor engine performance. The diesel particulate filter is mounted as part of the exhaust system. For the filter to operate correctly, it must regularly run a regeneration process to burn off the continuously accumulating soot. This process is completed by precisely regulating an increased temperature of the exhaust gas passing through the filter which then burns away the carbon deposits. To do so a sensor transmits data to an engine control unit that then calculates the precise requirement for post-injection fuel to increase the temperature during the regeneration phase. As with any filter, the DPF must be regularly emptied otherwise, over some time, it will start to clog up and will eventually become partially blocked. Passive regeneration of the DPF can only occur at fast speeds on a motorway or A-road so with all the local driving and short journeys for many vehicles, this process cannot occur often enough eventually leading to clogging of the DPF.

Just like manipulating any other part of the emissions system, it is illegal to remove / gut or change the DPF system in any way and carries a £1,000 fine for consumers or £2,500 for light-goods vehicles. So, yes it is an immediate MOT failure if caught doing so. Reference: https://www.gov.uk/government/publications/diesel-particulate-filters-guidance-note/diesel-particulate-filters Sanctions are a lot more serious for Heavy Goods Vehicles. Our advice is to diagnose correctly, resolve the cause of DPF issues and if required clean or worst case replace the DPF to stay legal, after all, if you don’t put you’ll still likely have an underlying fault that will almost certainly lead to other issues.

Other than the ash content issue explained below there are no risks with our service. However, our technicians are trained to the highest standards and we are fully insured. We also warranty our workmanship and any parts supplied for 3 months (90 days). There are two types of content that fill and clog a DPF – soot, and ash. Our system will clear the soot but not the ash content. Soot builds up quickly and generally gets cleared by the regeneration process (a passive system that burns the soot whilst driving under the right conditions), this is the most common issue. When the DPF system fails, be it a related component failure or driving related, then it will almost certainly be a build up of soot that clogs the DPF. Ash builds up and clogs the DPF over a far greater time and can only be removed by removing the DPF and sending it away. The only risk of our service is that if there is too much ash it will not fully clean. Due to this it is the first thing our technicians will attempt to check for during the diagnosis stage of a DPF clean service. In the unlikely case that it is obviously ash content that is the cause of a DPF issue we will advise not continue with our process.

Yes, our technicians are trained to the highest standards and we are fully insured. We also warranty our workmanship and any parts supplied for 3 months (90 days). What we cannot warranty is any failure to follow-up on advisories supplied during or at the end of our service. We also cannot, of course, be held accountable for any future component failings that could lead to a future failure of the DPF system. If you have been told by a garage or another supplier they will warranty their DPF work without explaining this be wary as the chances are they will refer to such failings only if you have an issue after you’ve used them. In our opinion, it’s best, to be honest, upfront and trustworthy.

Yes, we offer multi-service and multi-vehicle discounts.

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