⭐⭐⭐⭐⭐ ‘Adrian came on time and was professional from word go, showed me fault codes and live data and diagnosed issues straight away. Car is now running quieter and slightly smoother,
Couldn’t recommend enough, Brilliant ‘
BMW Cold start issues 330d (2007 – 125,753 miles)
Reason for booking in…
‘I’ve got poor cold start and exhaust smells abit like diesel while running, it’s been to specialist but with no faults found I’m not sure that’s the case’
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 and an exhaust note not quite right with an excessive headache inducing smell.
Initial code read found…
Plenty of error codes including glow plugs, fuel filter, smooth running controller, etc. All 6 glow plugs suggest the glow plug control/relay is the culprit of the cold start issues.
Live data is where things started getting interesting.
1 – DPF backpressure was FLATLINED at 8192mbar (healthy values are usually around 6-15mbar).
2 – DPF regeneration last occurred 56,072 miles ago
️After discussing with the owner it was clear that the DPF had been removed and remapped long ago. The likely original cause of the DPF issue is the glow plug system not working. The owner was unaware of this history from the seller and also the ‘specialist’ hadn’t picked up on this.
We continued 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 decide what to do next regarding the glow plugs, DPF and smooth running issue.
f5e.cc/039133
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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.
