How to Pass MOT on Emissions
MOT due or already failed? We can help you pass! Our diagnostic and Carbon Cleaning service is an ideal way to lower emissions in preparation for your MOT test (or re-test)
Reviews For our Services
Really informative, walked you through the diagnostic and fault finding. Explained his reasoning.
I would definitely recommend and I will be using him again without a doubt.
Thank you Leon.
Simon Page.
Highly recommend Adrian to anyone thinking about getting their car carbon cleaned — top guy and excellent service!
I was booked in quickly and had clear instructions ahead of Adrian’s arrival. He kept me up to date with his ETA on the day.
Adrian showed and explained everything that he was doing, and how the process works. He explained all of the engine codes and diagnostic figures.
Would recommend and will use again in the future
- a dirty engine – which we can clean up with our Engine Carbon Clean
- a mechanical / electrical issue from a leak, a faulty thermostat, failing cat, a sensor issue, etc. which we can identify with our live data diagnostics (included in our Engine Carbon Clean service).
‘So the Caddy SDI MOT was a FAIL on emissions… so had it carbon cleaned, was advised to replace thermostat, and what a difference, the van has now passed the MOT and it's noticeable … smoother and quieter'
Martin Cob
MOT Emissions Test FAQs
Got a question about our Carbon Cleaning service? We’ve answered some of the most common questions we get from vehicle owners across the UK. From how often to book a carbon clean to what results you can expect, here’s everything you need to know before your appointment.
What does an Engine Carbon Clean do?
Keeping your engine cleaned on a regular basis helps prevent issues such as DPF issues, MOT emissions failures or sticking turbos. An Engine Carbon Clean is great at cleaning up the back of a turbo, combustion chamber, injector tips, pistons, cylinders and cats to get a vehicle running smooth, quiet, responsive, economical and emissions friendly again.
Can you carbon clean a petrol engine?
Yes. All hydrocarbon engines create carbon build up depending on the mileage, driving style, journey length and fuel quality used. You can clean petrol, diesel, LPG, hybrid or anything else such as methane. Not just cars and vans, but we also work on boats, tractors, tanks, generators, landfill engines, anything really.
What are signs of carbon build up?
Typical symptoms include a decline in fuel economy, noisier engine, increased vibration, sluggish response and smoke/emissions levels. As fuel economy and emission targets have got stricter over the years the engine components have been developed and added in order to keep the soot u003cstrongu003ewithin the vehicleu003c/strongu003e rather than passing it out through the exhaust. This then clogs up EGR valves, inlet manifolds and DPFs.
When should you Engine Carbon Clean?
If you have just bought a vehicle or warranty is due to expire then it is a perfect time to get it checked out and cleaned up. As part of your regular maintenance plan an ideal time is just prior to a service or MOT to help keep your vehicle running smoothly, quietly, economically and with low emissions. Most people are coming back for repeats approximately every 15-20k miles based on driving style, journey length and fuel quality.
Does Carbon Engine Cleaning actually work?
Yes it does and it is very good at what it does as long as the relevant pre-checks are performed to ensure an effective clean and critically it is done by someone who is properly trained, certified, with the right approach and equipment.