Want to avoid or reduce excessive exhaust smoke? Failed your MOT emissions test? Embarrassed by the smoke trail you leave behind you?
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.
- Grant Bearman Withers
My Audi A5 had gone into limp mode due to the DPF failing to regen when I had fault codes, I booked the appointment online and Cristian came out to me in the early afternoon. He did a carbon clean and then the DPF clean afterwards and what a difference it has made, it took the car straight out of limp mode and the whole drive has improved with improved throttle response, boost and an all round improvement, really pleased with the service from Cristian, helpful, friendly and explains everything as he goes. I would definitely use UKCC Auto Techs again if needed.
- Cheryl Sillery Brown
What can i say except 5* service. Red came he explained everything. I told him my long complicated hystory of 4 different diagnosis from different guarages with no diffinitive answer. He did the carbon and chemical clean..i watched as the black carbon left my cars engine. We took it for a test drive. Wow and i mean wow the difference in the power and smoothness of the engine was unbelievable. My car still went into limp/safe mode (original prob) red popped it back onto computer diagnosed my glo plug prob... not £1500 worth as turbo as quoted before.Anyway booked in garage tomorrow for repaire and full oil change and he wants to know outcome. And if i still have problems he will come back to re-diagnose but i dont think he will need to....i was sceptical about it being worth doing but from the TOP RATE CUSTOMER SERVICE TO THE AMAZING CLEAN TO MY ENGINE IT WAS WORTH EVERY PENNY.Thankyou Red. I will see you very soon to come clean my Bmw engine ���Pete Sievewright
Yesterday Matt came to me yesterday and gave my car a stage 3 clean after months of problems from my Diesel engine not getting a proper run.It was smoking, coughing and spluttering and wouldn't start at times due to a valve sticking in the EGR unit. Accelerating through the gears you would notice a large vibration in gears 1,2 & 3!After the cleaning was done I couldn't believe the difference, no smoke, no problems with a sticky valve and a tiny little vibration in 1st gear, the engine is smoother, increased power from the turbo and an all round better response in driving.I WOULD RECOMMEND CARBON CLEANING TO ANYBODY WHO ACTUALLY CARES ABOUT THE VEHICLE THEY DRIVE!!I dealt with Matt who was very knowledgeable and was happy to listen to me about the history of the vehicle since owning it and I learnt a few things to.I will be booking in again down the line!If you know what your looking at then you can tell the difference between the pics.
- Paul Dolby McCarthy
Well Matt left my car about an hour ago having booking him in for my Audi A6 2.7 TDI Le Mans edition. I have just got back from a drive up the motorway and back with a lead foot and I must say I can feel the benefit immediately. I'm not talking seat throwing Was involved but it was quicker of the spot and my engine was smoother through the gears in both Drive and sport. No thick cloud behind me either.Highly recommended and a genuinely nice bloke also. See you next year fellaMatt Godwin
Carbon Cleaning UK worked their magic recently on my 2006 Audi A4 2.0TDI Cabriolet which I had, up until then, thought was performing very well. How wrong could I have been!After getting "the full treatment" my 12 year old Audi felt like a totally different car! Noticably more power and also managed to cure a slight occasional stutter that I'd had (on acceleration) since I bought it, that no one else to date had managed to.Can't recommend them enough! (Getting better fuel economy now too!)Thank you Carbon Cleaning UK!
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.
Exhaust smoke colour relates to different engine issues
Too much white exhaust smoke?
White smoke is condensation caused by hot liquid vapors 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 use will cause more damage. Have a head gasket leak test completed immediately with your local professional garage.
Too much black exhaust smoke?
If a vehicle is expelling to 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 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…
- The engine has become worn through old age or excessive heavy driving habits leading to internal oil leaks.
- 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.
- 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.
Preventative cleaning starts from as little as £89.99 (for a car)
If your vehicle has an excessive exhaust smoke issue or failed it’s MOT emissions test and therefore requires further assistance to resolve the problem there is no better alternative than a skilled UKCC technician providing our carbon cleaning service.
From just £119.99 (for a petrol non-turbo car). The advantages are:-
- Our Mobile Carbon Cleaning Technicians come to you
- Potentially no expensive parts
- No disassembly is required, therefore no expensive labour
- Completed in an average of 45-60 minutes so no requirement to leave your vehicle with a garage for days on end
- We are fully insured to complete this service at the roadside or wherever your vehicle is located
If you require further information please visit our Carbon Cleaning FAQ’s section, contact your local technician or our HQ team on 01293 769495 to discuss your requirements, or use the inquiry form below and we’ll get back to you at your convenience.
Click on the following links to view our other engine cleaning services – Carbon Cleaning | DPF | EGR Valve | Oxygen Sensor | Intake Valves | Spark Plugs | Catalytic Converter | Intake Manifold | Turbocharger | Fuel Injectors