Mobile Carbon Cleaning Service
Noticing poor fuel economy, sluggish acceleration, or a rough idle? Carbon build-up in the engine, intake, or injectors could be the cause.
At Rapid Performance, we offer professional engine carbon cleaning in Portsmouth and Hampshire — fully mobile and backed by diagnostics. Whether petrol or diesel, we help clear harmful deposits from your engine to restore performance and efficiency.
Common Signs of Carbon Build-Up
What Is Carbon Cleaning?
Carbon cleaning is a process that removes built-up carbon deposits from internal engine components — including the intake valves, injectors, combustion chamber and EGR system.
We use specialist equipment that safely removes this build-up without disassembling the engine, helping your car run more smoothly and efficiently.
Trusted by local drivers with 5-star reviews
Fully mobile or garage -based service
10+ years of hands-on experience
How Our Carbon Cleaning Works
We start with a scan to check for fault codes and identify carbon-related issues.
We assess carbon build-up symptoms and engine condition.
We apply a cleaning solution or hydrogen-based system (depending on vehicle) to dissolve and remove carbon from key areas.
We retest with live data, clear any codes, and confirm performance improvement
Why Choose Rapid Performance for Carbon Cleaning?
We can carry out carbon cleaning at your home, workplace, or even roadside. Prefer a workshop? Book into our fully equipped garage in Portsmouth.
We’ve completed hundreds of carbon cleans across Portsmouth and Hampshire. Our team knows how to spot carbon build-up and treat it effectively — with no fuss.
Our HHO carbon cleaning process runs through the air intake, so there’s no need to remove engine components. That means quicker turnaround and zero mess.
Every carbon clean includes a full scan of your engine system. We check for fault codes, monitor live data, and confirm improvements before we finish.
No pressure selling, no pointless parts. Just clear advice, fair prices, and noticeable improvements in performance, emissions, and fuel economy.
What Our Customers Say
Posted on Facebook Harvey WarrenrecommendsTrustindex verifies that the original source of the review is Facebook. Absolutely fantastic service! After taking my van to multiple garages and mechanics who couldn’t figure out the issue, Rapid Performance diagnosed it immediately and had it sorted in no time. The speed and efficiency were impressive, and the price was very fair. On top of that, he’s a genuinely nice guy who made the whole process stress-free. Highly recommend for anyone in need of a quick and reliable fix! 5 starsPosted on Facebook Enslin WinnaarrecommendsTrustindex verifies that the original source of the review is Facebook. Professional, knowledgeable, approachable and respectful. A fantastic gent. My car is a good as gold . I would recommend Rapid Performace to all my family and friendsPosted on Facebook Rodger MillsrecommendsTrustindex verifies that the original source of the review is Facebook. Had the DPF light on dash and Astra in limp mode. Garage could not conduct force regen as DPF too blocked. Dan came out next day and carry out a full diagnostic check before cleaning the DPF and checking it would regen on its own. All codes cleared, smell of diesel gone and engine sounds better already. Fuel economy is also likely to improve. First class service, very knowledgeable and helpful. Nothing was too much for Dan. Defo recommend.Posted on Facebook Allan HalsteadrecommendsTrustindex verifies that the original source of the review is Facebook. This is one guy who you can rely on to get it right first time every time ! Thanks very much dan!Posted on Facebook Oliver LeerecommendsTrustindex verifies that the original source of the review is Facebook. Very friendly and professional. Remapped my 1.3 cdti combo couple weeks back , has improved performance across the revs and also noticeable improvement in fuel economy . Will be bringing my other vehicles to them soon for remapping. 😎Posted on Facebook Simon ClarkrecommendsTrustindex verifies that the original source of the review is Facebook. Great service and great results can recommend Dan enough really helpfulPosted on Facebook Gary RichardsonrecommendsTrustindex verifies that the original source of the review is Facebook. Took my Audi for a Map and I’m so pleased with the service. After a dyno run we discovered the car had already been mapped previously but not very well so it was mapped again and she drives brilliantly now. Very happy customer. Will recommend to everyonePosted on Facebook Keith HammondrecommendsTrustindex verifies that the original source of the review is Facebook. Great service, Dan is well informed and has a great knowledge,.it was a refreshing experience to witness and have him map my vehicle, he done a pre dyno run to show the before figures, and after to show the improvements, and I'm a satisfied customer. thanks KeithPosted on Facebook Daniel LateurecommendsTrustindex verifies that the original source of the review is Facebook. I've been to Dan at Rapid twice now. 1st visit was to find out if it was truly running the nearly 300bhp the dealer claimed. During he the dino run we found the waste gate solenoid had gone and it was boosting far to quickly and dropping off. Soon had that fixed and returned a very impressive 282bhp with stage 3 Revo software. its since been back to search for the remaining 20 odd BHP revo stated was still there with a remap. Well, Dan spent hours reprogramming the brains to now an awesome 320bhp and 484nm of torque. Its proper rapid and needed a slightly soft and smoother application of power to not set the tyres on fire. to achieve this much from the S242 Turbo technics set up was fantastic. I cant recommend Rapid performance enough. Think I may need a LSD though 🤣🤔 Competitive price which I was very happy with
Carbon Cleaning for Popular Brands

Great for TDI and TFSI models prone to intake carbon

Common carbon issues in diesel 1, 3, and 5 series

Especially useful for Transit vans and EcoBoost engines

Clean up performance across A, C, and Sprinter models

Restore smoothness and power on Golf, Passat, and TDI vans
Book Your Carbon Clean Today
If your engine’s lost its edge — or you’re due for preventative maintenance — book your carbon clean now. We’ll come to you and restore your vehicle’s performance safely and professionally.
Phone : 07989 889584
Unit 3A Paulsgrove Ind Estate,
Southampton Rd,
Portsmouth,
PO6 4RJ
Send us a message
Carbon Cleaning FAQs
Yes — when done correctly with the right method for your vehicle. We use trusted equipment and diagnostics to ensure a safe, effective result.
In most cases, yes — especially if your engine has noticeable carbon build-up. Customers often see better mpg and smoother running after a clean.
Absolutely. We offer a fully mobile carbon cleaning service — or you can book into our Portsmouth garage.
Yes — we clean both petrol and diesel engines, including turbocharged models.
Usually around 1 hour, depending on your vehicle type and condition.