⭐⭐⭐⭐⭐ ‘My 2008 Citroen C4 1.6hdi had the dpf light come on. The local garage cleared it but wasn’t confident it would stay off. They told me to speak to the main dealers. In the end, I just got confused, mainly because neither of them told me what the problem was.
Enter Adrian, after having read his website I felt confident that he would diagnose the fault. He arrived promptly and went about his work in a professional and friendly manner. The fault was diagnosed to a relay, he also did a carbon clean, the car is now a totally different car to when I bought it. It’s much quieter and much more responsive as well. Would I recommend Adrian? In a heartbeat every time.’
Citroën DPF issues C4 1.6HDi (2008 – 99,784 miles)
Reason for booking in…
Citroën DPF issues recently and generally not driving as well as it used to
Initial inspection found no obvious issues in the engine bay with no excessive rattles and shakes, but a tell tale rumble in the engine from the carbon present.
Initial code read found…
Error code relating to the glow plug control relay – this will be contributing to the recent Citroen DPF issues.
Live data showed acceptable coolant temperature in the mid to high 80s and DPF data indicating the DPF wasn’t blocked. There was a flag showing an additive addition issue so that needs checking out.
On with the clean and It soon smoothed out, quietened down and by the end it was quiet, smooth and responsive again.
❗ The owner can now resolve the glow plug issue and get the additive issue looked at.
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Engine Carbon Cleaning FAQs
Got a question about our services? We’ve answered some of the most common questions we get from vehicle owners across the UK. From how often to book a 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. It also 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.
What does DPF Cleaning do?
A mobile service to properly diagnose, clean and reset a DPF. Suitable for soot and oil blockages and on a maintenance basis to avoid residual ash accumulation, causing regeneration issues. DPF Investigation and Clean Service
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 within the vehicle 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.