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HOW CARBON CLEANING WORKS

Want To Avoid Replacing Your Intake Manifold and Swirl Flaps?

Carbon Cleaning is your best option


intake manifold engine warning light

Why does it get clogged up?   As part of the emissions system, some of the dirty exhaust gases are diverted back into the intake manifold to aid in reducing combustion temperatures, this, in turn, reduces combustion temperature and therefore the poisonous NOx gas that we are all so concerned about breathing in. The downside to this is that some of the carbon, resins, and oil vapor residues that are present in the exhaust gases coat the inside of the intake manifold forming ‘carbon build-up’. Over time this builds up to a point that you’d be shocked the engine is actually able to breathe and run!

This leads to symptoms such as sticking intake swirl flaps, poor engine performance, engine management warning lights and the limp-home-mode being activated (restricted performance), lowered fuel economy and rough idling. We have a great wealth of knowledge and specialise in the diagnostics and cleaning of the intake manifold system and repair solutions for the swirl flaps. This includes live data analysis using dealer level diagnostics equipment that we include in all our intake manifold and swirl flap cleaning services.

How do we clean the intake manifold?

Firstly we’ll use our dealer level diagnostics equipment to assess the engine management error codes and complete live data analysis. Then assuming the vehicle is fit for cleaning we use our 1, 2, 3 or 4-stage engine carbon cleaning system that includes our world-leading Hydrogen carbon cleaning and our unique chemicals. This means in the majority of instances there is no requirement to remove the manifold for cleaning or replace it with a new part. On completion of the job, which takes approximately 45-60 minutes, we’ll reassess the engine management system and reset any fault codes.

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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

Intake Manifold and Swirl Flap Options

Choose The Best Option For Your Vehicle

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1-stage Carbon Cleaning

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Our world class Hydrogen generating machine pulses Hydrogen and Oxygen into the engine which upon contact with dry hardened carbon will burn it back into it's hydrocarbon state (a gas) so that it can exit safely through the exhaust system. Includes FREE dealer leval diagnostics scan.
For more information please view How Carbon Cleaning Works

Recommended for: Those who use our Carbon Cleaning Services annually or every 10,000 to 12,000 miles.


Price: £119.99


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Hydrogen Engine Carbon Cleaning
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3-stage Carbon Cleaning

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This service is based on stage-1 Hydrogen cleaning but also utilises our unique chemicals for a more in-depth cleaning. It also dries out the moisture (mainly oily residues) which restricts the intake manifold and swirl flaps so that the Hydrogen cleaning can be more effective. This is then topped off with the inclusion of our proprietary injector cleaner to ensure a cleaner combustion thus slowing down the risk of further carbon build up causing repeat clogging.

Recommended for: Vehicles that are suspected of or definitely have a clogged intake manifold causing symptoms such as Limp mode (restricted performance) or loss of power, excessive smoke or engine warning lights for the EGR.


PLEASE NOTE: THIS SERVICE IS NOT GUARANTEED TO RESOLVE A FAULTY SWIRL FLAPS. CLEANING CANNOT MAGICALLY FIX SOMETHING THAT IS BROKEN, THEREFORE IF YOU REQUIRE A GFIX TO AN EGR FAULT PLEASE SEE THE FINAL OPTION BELOW


Price:£179.99


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swirl flap delete solution
Remap for swirl flap delete and 3-stage Carbon Cleaning

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First we'll supply our unique 3-stage carbon cleaning process as above to ensure a clean engine and system. Then we reconfigure (remap) the vehicle's computer to permanently switch off the swirl flaps system whilst also programming it run more efficiently without the flaps. This solution, which is also known as Swirl Flap delete, is an alternative to the expensive replacement parts. For further details on this service please call us or speak to your technician upon their arrival.

Recommended for: Vehicles that are suspected of or definitely have swirl flap failure.


Price: £389.99


Book now
swirl flap delete solution

Why Clean The Intake Mainfold?

dirty intake manifold

The intake manifold is a set of tubes configured to deliver the air to the cylinders. In all engines, this air comes through a filtered air intake designed to keep the engine and components such as the manifold clean. However, with the need to make engines more efficient and reduce emissions manufacturers have introduced an EGR (Exhaust Gas Recirculation) system into the engine. The problem occurs due to the recirculation including oil, unspent fuel, and other deposits that as they enter the manifold then stick to the walls of the manifold tubes and begin to clog them up. The engine then receives reduced airflow, starts to become inefficient and doesn’t burn all the fuel. This leads to a loss of performance and increased emissions and pollution..

Problems that may occur from a dirty manifold include uneven and a noisy idle (usually the first sign of the issue), a tendency to stall, misfires and hesitation (especially when the engine is cold).

Cleaning Your Intake Manifold

dirty intake manifold2

There are numerous ways to resolve a clogged intake manifold and with varying prices.

The costliest option is to replace the component. Depending on the vehicle manufacturer and engine type expect this to be in the region of high £100’s, if not £1000’s.

The moderately expensive alternative is to manually clean them. Most mechanics will recommend this – Why? Because they’ll earn well from the extensive hours it takes to complete the job. The price will be dependant on how bad the clogging within the manifold, labour rates and engine type but expect it to be in the £100’s.

The most cost-efficient solution would be our engine carbon cleaning service.


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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.

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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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Faq

Depending on the level of service chosen our engine carbon cleaning service takes a total of 45-60 minutes.

Carbon cleaning is not as such a fix, its original purpose is cleaning as a preventative measure as carbon build-up is the root cause of 85% of the failure of components. If your vehicle is suffering from swirl flap faults it can be mechanical, electrical or simply they are dirty. If it's the latter then cleaning can of course resolve this however if it's mechanical or electrical we would recommend a swirl flap remap solution and a carbon clean to remove the carbon from the manifold and the rest of the engine. It would then be advised to follow up with carbon cleans once every 12,000 miles as preventative maintenance.

You cannot clean too much but we recommend preventative cleaning once a year, or every 10-12,000 miles – just like a regular oil change but for the air and fuel side of your engine - little and often is the key and as the saying goes… ‘An ounce of prevention is worth a pound of cure!

Certainly not. We are a worldwide brand with CE marked machines, operating in over 50 countries with 100’s of machines being used daily – never has there been an engine damaged from our engine carbon cleaning process.

We would not take any risks with your vehicle, so for piece of mind UKCC Auto Techs guarantee to you that all our technicians are trained to the highest standards and are independently fully insured.

No, this process is totally safe and untraceable.

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

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