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Want To Avoid Excessive Exhaust Smoke Effecting Your Vehicle?

Our diagnosis and engine carbon cleaning is your best option!


Why does it smoke?   There are many reasons why a vehicle will smoke excessively. The main ones are inefficient combustion, leaking injectors, clogged EGR valve, failing turbo, blocked DPF or catalytic converter.


We have a great wealth of knowledge and specialise in the diagnostics of excessive smoking issues or resolving MOT emissions failures. This includes live data analysis using dealer level diagnostics equipment that we include in all our carbon cleaning services.

How do we resolve excessive exhaust smoke or high emissions causing MOT failures?   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 a 2-stage (for petrol naturally aspirated engines) or 3/4-stage carbon cleaning (for petrol turbo or diesel engines) that includes our world-leading Hydrogen carbon cleaning and our unique chemicals. On completion of the job, which takes approximately 45-60 minutes, we’ll reassess the engine management system and reset any fault codes.

Exhaust Emissions and MOT testing
In an effort to reduce pollution and Greenhouse gases most UK road going vehicles must meet set emissions standards. You can read more about these standards and MOT emissions testing here.

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Excessive Exhaust Smoke Cleaning

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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2-Stage Carbon Cleaning

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As per our Stage-1 service but with our unique Injector Cleaner. As Hydrogen is introduced into the engine through the air intake the injectors are the one component that this form of cleaning cannot reach. Therefore here are UK Carbon Cleaning we’ve developed our own injector cleaner solution. This is administered through the fuel system to work in conjunction with the Carbon Cleaning. Clean injectors makes 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: Petrol vehicles without a turbo.



Price: £149.99


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Stage-3 Carbon Cleaning

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As per our Stage-2 service plus our own branded chemical carbon cleaner solution that is designed to work in conjunction with the Hydrogen Carbon Cleaning. This unique chemical was developed when we realised that despite Hydrogen having some amazing results there are some limitations. Some carbon build-up retains moisture (mainly oily residues) which restricts the Hydrogen from interacting with the carbon as well as it could. This chemical is designed to burn as much of this oily residue away and dry out what is left so that thereafter the Hydrogen cleaning can produce even better results.

Recommended for: Petrol turbo and all diesel engines.


Price: £179.99


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Stage-4 Carbon Cleaning

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As per our Stage-3 service plus our own UK branded DPF chemical solution designed to aid a Diesel Particulate Filter to burn soot at temperatures as low as 300c (usual regeneration temperatures are >600c). This is a preventative solution to prevent DPF clogging and increase the lifespan of the DPF. NOTE: This is not a replacement DPF Cleaning

Recommended for: Diesel vehicles with a DPF unless they do not run ad-blue.


PLEASE NOTE: THIS IS NOT A DPF CLEAN, FOR THAT PLEASE VISIT OUR DPF CLEANING SERVICE PAGE


Price: £209.99


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3-Stage Engine Carbon Cleaning

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Toyota Avensis D4D Excessive Smoke Cure

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Exhaust Smoke Colour Relates To Different Engine Issues

Too much black/grey exhaust smoke?

black exhaust smoke

If a vehicle is expelling too much black smoke it’s a sure indication that either there’s too much fuel or there is not enough air in the fuel/air mixture.


For fuel-injection vehicles, the sensors and injectors should be checked to ensure they are operating correctly and hoses related to the turbo checked for splits or leaks as either of these issues will likely cause too much fuel to be delivered and lead to a rich air/fuel mixture and black smoke.


Air filters and all other air intake components should also be checked, if clogged they will be a restriction on the air intake again leading to air in the fuel/air mixture.

Too much white exhaust smoke?

white exhaust smoke

White smoke is condensation caused by hot liquid vapours coming into contact with cold air as it exits the exhaust.

It’s perfectly normal for a vehicle to exhale some white smoke from a cold start, especially in cooler weather. The longer the vehicle has sat unused the more chance there is that some water vapor has accumulated in the system but this is of no concern and will quickly clear as the engine starts to warm up.

If however, the vehicle is always exhausting white smoke, even when the engine is warmed up, this will be caused by coolant entering the combustion chambers i.e. a leaking head gasket. If there are signs that the head gasket has failed switch the engine off, do not drive the car as further otherwise this will cause more damage. Have a head gasket leak test completed immediately with your local professional garage.

Then there’s our service, the most cost-efficient option. Even if a clean doesn’t resolve the issue completely at least you’ll have a clean and efficient engine!

Too much blue exhaust smoke?

blue exhaust smoke

If a vehicle is exhausting blue smoke this is a bad indication that the engine is burning oil and should be inspected by a professional at the earliest convenience to determine the fault.

Most common reasons for such an issue are…

  1. The engine has become worn through old age or excessive heavy driving habits leading to internal oil leaks.
  2. Defective or worn piston rings are allowing oil to enter the combustion chamber. If this has occurred the vehicle will also be experiencing loss of power, especially under load.
  3. An incorrect oil used during the last oil change or poor quality oil which is too thin is causing the oil to escape into the combustion chambers through the seals.

Spread the cost over 4 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

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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

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Easy payment plan
Upon approval* your invoice is split into 4 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 3 further monthly payments.

Example: Invoice value £400 divided by 4 = 4 x £100 payments. NO INTEREST AND NO CHARGES.

*The payment process is subject to approval by Payment Assist

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 failure of components. If your vehicle is suffering from excessive exhaust smoke it'll depend on the cause as to what impact Carbon Cleaning can have. For example, if the engine is simply running inefficiently due to carbon build-up cleaning will resolve this. However, if the vehicle has faulty injectors and the excessive smoke is unburnt fuel no amount of cleaning could resolve something that is effectively broken.

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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