Why Book Us

‘Diagnose running issues, restore power, performance, fuel economy and lower emissions. It's essentially a health check and detox for your vehicle.’

Our live data diagnostics helps identify underlying issues that may be causing symptoms, plus helps identify other hidden issues before they become a problem.

Our engine carbon cleaning service helps save money on fuel, provides a smooth, quiet and responsive drive and can help deal with issues such as MOT emissions failures or sticking turbos.

An engine carbon clean will help reduce soot levels entering the EGR/DPF and inlet manifold in future.  This helps reduce the frequency of DPF regeneration – the DPF will last longer and saves fuel with fewer regenerations.

Our DPF Cleaning service can be for soot and oil blockages, but also on a regular basis to flush out the residual ash from regeneration and restore the capacity to capture soot and oil.

See some Examples…

Our service includes a full diagnostic consultation to identify issues that need addressing by the seller or under warranty. 

Avoid running into problems by identifying if you have had your DPF removed for example, failed sensors which may lead to DPF blockages in future and failed components such as catalytic converters, etc.

If everything looks good then get it cleaned up for the road ahead.

See some Examples…

Avoid failure or turn that fail into a pass.

MOT failure or general smoke issues will be down to either a failed or malfunctioning component/sensor (which we can often identify with our diagnostics), thermostat or carbon buildup.

With increased mileage then a dirty combustion chamber causing over fuelling will increase emissions which we can clean up with the Engine Carbon Clean.

Grey smoke on diesels can also indicate DPFs getting full of ash – regular maintenance DPF Cleans help remove this to keep it running at its best.

See some Examples…

If you are planning a modification or remap then you should get any faults diagnosed and recover lost power first before adding more.

By cleaning it up and get it breathing properly the extra work the turbo has to do post-remap won’t stress the turbo as much. Extra important if you are having a custom map on a rolling road as it is best to map a clean car rather than a dirty one.

See some Examples…

A proper diagnosis is essential to correctly tackle running issues.

If for example you are having DPF issues we can help, quite often just with diagnosing the underlying issue with NO NEED FOR A DPF CLEAN.

Limp mode issues can be due to sticking turbos, sensors or leaks for example.

Sticking turbos can often be resolved with an Engine Carbon Clean.

See some Examples…

A diagnostics is essential to understand why.  Many times the DPF will be struggling or unable to regenerate due to a faulty sensor or component.  In this case no matter how you drive it the DPF will not regenerate and will lead to a blocked DPF.  Once diagnosed the faulty parts can be fixed and regeneration can work again.

If DPF back pressure / soot content is already too high then fixing the underlying issues will still not allow regeneration.  A DPF Clean (unblock) is required in this case.

With higher mileage vehicles the residual ash (left behind from regular regeneration) starts to restrict the ability to capture the soot/oil. A regular maintenance DPF clean to flush out this ash then restores the capacity to hold soot/oil and allow normal regeneration to resume.

See some Examples…

How and why does carbon affect my vehicle?

All combustion engines whether petrol, diesel, LPG, methane, hybrid, new or old, over time gather carbon deposits – it is a natural product of burning fuel.

A dirty engine has to work harder and uses more fuel, vibrates causing noise, shake and lumpy running and increases emissions eventually causing MOT failure. The more it shakes the more it will wear components such as engine mounts, clutches, etc.

An example of buildup present in the inlet pipework of a BMW 320d. This buildup is a combination of oil, grease, water vapour and carbon which has gathered from a combination of short journeys, poor quality fuel (with little/no additives present) and a dirty engine with increased emission levels. Regular engine cleaning would have helped prevent this gathering.

In the past cars just dumped a lot of this carbon out through the exhaust, but as fuel economy and emission targets have got stricter over the years engine components have added in order to keep the soot within the vehicle rather than passing it out through the exhaust.

What Clients Say

James Fosterr
18:26 16 Jan 25
Outstanding service, very detailed and comprehensive explanation of the process and most definitely worth it
Phil Bedwell
18:07 16 Jan 25
I contacted Adrian after some issues with my car for a few months. Arranging an appointment was easy and coming to me was a great help. He spent the time looking at the diagnostics and explaining what he found, and what he had done to try and rectify it. He left me confident in his assessment and the price he quoted was very reasonable for getting such an expert assessment of the car.
Chris Taylor
17:01 16 Jan 25
Really happy with the service from Adrian at F5ECC, my car was having issues and running really poorly. I decided to ask for Adrian's help. Adrian moved mountains to squeeze a booking in for me within a couple of days. when he arrived he explained every stage of the process to me in detail showing me all the data on the computer. I now have a car with no check engine light, running so smooth and quiet. More MPG. Just like having a new car. Many thanks Adrian and I will certainly use you again in the future, probably as a pre-service preventative measure. Superb customer service.
Abu Noor
15:07 09 Jan 25
An honest man with integrity. Adrian for you who don’t know him.Didn’t oversell me or undersell me, kept it a hundred and gave me very useful information on my cars performance and capabilities.I was also looking at having some work done in regard to walnut blasting. Adrian advised me on the situation and what to look out for. Because of Adrian I was able to avoid someone who was going to sell me a lie and perform a task that would’ve completely ruined the engine.I had two cars booked in and both cars fire like brand new! Considering one had 130K on the clock and the other had over 200K. Because of his service, my car engine light no longer appears (I had this diagnosed twice and found nothing having spent close to £150 for both combined)For those of you who have doubts, I would definitely recommend Adrian at F5ECC. He knows what he’s doing!Reliable. Honest. Value for money.
Sascha Pacco
14:54 31 Dec 24
Great service at a reasonable price. Always very good at letting you know about arrival times, during the process he goes above and beyond with other checks and scans. 10/10 would and many times, use again.
Harry West
12:44 20 Dec 24
Had Adrian come out to do a carbon clean on my Nissan 350z. I expected the clean to only have some minor effects, however I was pleasantly surprised. It feels like a completely different car, throttle response it's better, has even regained some horse power that it's lost over the years! Fantastic customer service overall and an insanely knowledgeable person when it comes to diagnostics. 10/10 Recommend!
Victoria Schofield
13:10 04 Dec 24
I have used this company twice , once in February and then again yesterday. When my car developer a fault my DPF blocks. This company is brilliant 👏. Very friendly, knowledgeable, great service and advice given after the clean. I would recommend this company to everyone and would definitely use again 😊
Ahmed Mujtaba
12:57 04 Dec 24
I can’t recommend Leon highly enough! He came to my house and carried out a full diagnostic on my car after I’d been struggling with a recurring issue for a while. Unlike other mechanics, Leon conducted a thorough analysis and identified the root cause—an intercooler leak at one corner, which was causing issues with the EGR valve.Leon is an absolute expert in his field, with an impressive depth of knowledge and attention to detail. What stood out the most was his excellent communication; he explained every step of the process, ensuring I fully understood what was going on. I felt completely informed and confident in his work.If you’re looking for someone who’s reliable, professional, and truly knows their stuff, Leon is your guy. Exceptional service from start to finish!
PAUL HUGHES
12:12 03 Dec 24
1st class service arrived on time carried out the Carbon clean very professional and curtious engineer would highly recommend
Harun Saini
09:47 04 Nov 24
I traveled from Coventry to have a carbon clean done on my Mercedes C63, and the experience exceeded my expectations. Adrian was fantastic—he completed the job within an hour and provided a detailed diagnostic report. Since the carbon clean, my car sounds sharper, with enhanced pops and crackles, and I’ve even noticed an improvement in fuel efficiency. I highly recommend this service!
Dominic Wayne
16:58 30 Oct 24
I have used Adrian 6 times now on 5 different cars. His service is second to non, professional and clear with the work he does. Always a great result from the Carbon Clean he performs. This time round on my BMW 420d Grancoupe, the engine is so much quieter and smoother at low speeds and picks up so much nicer. Although the car drove nice before, it now drives Great. I would not hesitate to recommend Adrian to my friends and family and often do.
martyn marriott
13:27 25 Oct 24
I would 100% recommend to have this done to your car my 220d feel like a new car get pulls better alot smoother and a very nice person did a full diagnostic on the car and show me every step show all the live dater on the car also explained it all also a very nice professional person
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