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

What Our Customers Say

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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

best work ...

HA
Harrison May 15, 2026
Trustpilot

I had a egr bypass remap and stage 3…

I had a egr bypass remap and stage 3 carbon clean service was quick and efficient and a clear friendly service

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

I would like to say a big thanks to Crisitian for coming to Bridgwater and helo me to fix my issue with manifild intake and DPF. Very friéndly and professional. Very punctual also. He did his best and very competitive price. I highly recommend his service Thank you

PT
Piers Taylor May 15, 2026
Trustpilot

Great service

Great service, super knowledgeable and able to fix a variety of faults on my BMW

★★★★★
10/10
Read all reviews →
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
10
Posted 13 February 2025

Full carbon clean and DPF clean

Engine management light and coil light came on, had my guy stick a diagnostic tool on it and it said the DPF was blocked. Booked a full 400 quids' worth of carbon clean and DPF clean. Matt diagnosed the problem as a sensor issue which would need a new sensor fitting. I could have got away with just the £90 callout fee but decided to go for full carbon clean at total cost of £210. I appreciate Matt's honesty and not trying to rinse me for a DPF clean. Would definitely use again.

Verified reviewer
Job location: SL0 Checkatrade
4.5/5
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PT
Piers Taylor May 15, 2026
Trustpilot

Great service

Great service, super knowledgeable and able to fix a variety of faults on my BMW

HA
Harrison May 15, 2026
Trustpilot

I had a egr bypass remap and stage 3…

I had a egr bypass remap and stage 3 carbon clean service was quick and efficient and a clear friendly service

ND
ND May 9, 2026
Trustpilot

Cristian turned up on time and did the…

Cristian turned up on time and did the 3 stage carbon clean and DPF cleaning on my Mini Cooper D. He explained the process well and was professional and thorough. Oxfordshire location.

SR
Stephen Redford May 6, 2026
Trustpilot

A really valuable service

A really valuable service, friendly, communicative went above and beyond to assist. Will use again every time!

OW
Owen May 5, 2026
Trustpilot

I Was Very Very Happy and Pleased With…

I Was Very Very Happy and Pleased With Christian The Technician He Was So Polite And Professional Explained Every Stage Of DPF Clean ..He Has Done a Miracle For Me.. Cleaning My DPF ..I Would Highly Recommend UKCC They Truly Professional and Clean Service ... Owen Kelly BRISTOL

RM
Richard Morgan May 4, 2026
Trustpilot

Turned up at 8am as promised

Turned up at 8am as promised, spent a lot of time and now the car is back to how it was when it was new. Out of limp mode and no lights on dash board. Thank you job well done.

★★★★★
4.4/5
Read all reviews →

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

I would like to say a big thanks to Crisitian for coming to Bridgwater and helo me to fix my issue with manifild intake and DPF. Very friéndly and professional. Very punctual also. He did his best and very competitive price. I highly recommend his service Thank you

I was satisfied with the service. Christian came to Swindon. I missed him the first time but he came back the next day. I cant fault anything. My car is running smooth now. I even got a discount because i work for the NHS so that was really nice. Would recommend to anyone.

Christian came all the way to Newport and done a very good job diagnosing the dpf problem and explaining everything to me in detail. He came on time and carried out the job efficiently

Catalytic Convertor Carbon Cleaning 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 level 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


Book now
Hydrogen Engine Carbon Cleaning
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2-stage Carbon Cleaning

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As per our Stage-1 service but with our unique Catalytic Convertor / Injector Cleaning Chemical. As Hydrogen is introduced into the engine through the air intake the chemical is also administered through the fuel system to work in conjunction with the Hydrogen. This additional chemical doubles up as an injector cleaner making for better atomisation of fuel and therefore closer to complete combustion is achieved which in turn means less carbon build-up! Includes FREE dealer level diagnostics scan.

Recommended for those serious about their prevention cleaning and vehicles with faulty Catalytic Convertors.


PLEASE NOTE: THIS SERVICE IS NOT GUARANTEED TO RESOLVE A FAULTY CATALYTIC CONVERTOR IF IT HAS PHYSCIALLY FAILED. CARBON CLEANING WILL CLEAN THE CONVERTOR BUT IT CANNOT REPAIR.


Price: £149.99


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Want To Clean Your Catalytic Converter?

Carbon Cleaning is your best option!


What causes the Catalytic Converter to get clogged?

catalytic convertor failure

The catalytic converter is a component of the exhaust system that is essential to controlling vehicle emissions.

It does so by converting toxic pollutants in the exhaust gases to less toxic pollutants and water, this is done by an oxidation and reduction method. When a catalytic converter fails it is essential it is immediately replaced.

The process of converting exhaust gas toxic pollutants is a sophisticated one. The core of the converter is a ceramic monolith with a honeycomb filter structure. There is a film of precious metal that’s on top of the monolith which at high heat intercepts and decomposes the toxins as they travel through the converter.


Manufacturers claim that a catalytic converter is designed to last the lifetime of the vehicle however it’s now common knowledge that they don’t and replacing the converter at least once during the lifetime of the vehicle is to be expected.


Why?

'The Catalytic Converter must reach temperatures,but with in-excess of 50% of journeys in the UK falling short of this 10 mile minimum journey requirement the converter doesn’t get up to

catalytic convertor cut out

temperature often enough. So, by nature of being a filter the carbon deposits travelling through the converter will eventually build up and start to clog the converter.


First signs of such an issue will manifest with excessive fuel consumption and loss of engine performance but as this occurs over a period of time it usually goes unnoticed by most until there are bigger problems


Cleaning your Catalytic Converter?

There are numerous ways to clean or replace the Catalytic Converter with varying prices.


The costliest option is a complete replacement part. Most mechanics will recommend this – Why? Because they’ll earn a profit from the part and it’s a quicker job for them. The price of a new catalytic converter varies on average between £800 and £3,000 plus labour for fitting. NOTE: Some vehicles have two Catalytic Converters, in these instances both should be replaced at the same time making the bill for replacement much larger!


The moderately expensive alternative is to replace the Catalytic Converter with a ‘straight pipe’ effectively removing the converter system from the vehicle. Some choose to do this for performance purposes however for road vehicles this will invalidate the vehicles ability to pass MOT emissions tests so we do not recommend this option. Prices for such a conversion start from around £300 including labour.


Then there’s our service, the most cost-efficient option.

Spread the cost over 3 payments

No Interest, No Charges

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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

payment step 2 2

Processing your application with your technician on the day of the service.
No credit check . Instead a high street bank debit card is used to approve pre payments is required.

PLEASE NOTE: Internet only banks such as Stirling Bank are presently not approved by Payment Assist.

*The payment process is subject to approval by Payment Assist

payment step 3 3

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 NO INTEREST AND NO CHARGES.

*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, it’s original purpose is cleaning as a preventative measure as carbon build-up is the root cause of 85% of the failure of components.

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 a catalytic convertor clogged or damaged from using our engine carbon cleaning process. When the hydrogen breaks the carbon down back into it's hydrocarbon most of the particles are small enough they will simply pass through the convertor. Any that are large enough to be caught will as long as your catalytic convertor is healthy like any other particles get burnt up safely.

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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