DPF Cleaning

Mobile DPF Cleaning & Diagnostics

DPF Warning lights

DPF Warning light

  • 99% DPF cleaning success
  • DPF Trouble Shooting Specialist
  • DPF Injection Soot Cleaning
  • DPF Deep Clean (Ash & Soot Cleaning)
  • Forced Regeneration
  • Save on Expensive Replacement
  • Professional diagnostics Equipment
  • Mobile service

 

Frequently Asked Questions:

Question. I've seen a DPF Deep clean advertised for £85 can you match the price?

Answer. There are different services and products on the market and some are misleadingly sold as a Deep Clean  these are fluids which are introduced into the DPF to dissolve some soot to reduce the back pressure in the hope the car will regenerate again afterwards these offer no real diagnostics as to why the DPF has become blocked in the first place and will not remove any ash from the DPF, pour in the tank cleaners also offer no real cleaning but instead raise the exhaust gas temperature to try and achieve a regeneration which often doesn't work and doesn't address the cause of the problem,  our Deep Clean really does remove ash (we offer 2 types of cleaning which offer either unblocking soot or a total clean which involves removing the DPF if this is not done then the ash can not be removed),  so the answer is we offer a better and more involved solution so the only way we could match the cheap price is to offer the same service which carries no real promise to solve the problem.


Question. Why can I buy a non Genuine DPF so cheap?

The answer is quite simple Genuine DPF's are far better quality and can actually last the lifetime of the car with our help.

A genuine DPF has precious metals inside and often have a higher residual scrap value than a cheap copy costs to buy.

We have attempted to fix DPF problems on cheap copies in the past and not been able to get them to function to specification, so will present a constant problem until a Genuine one is fitted.


Question. How much does it cost for DPF cleaning ? 

Answer. There isn't a fixed price every job is different, the price is usually between £50 & £200 for an average car.


Question. My DPF light has come on can you fix this?

Answer. Yes we can, but before we look at your vehicle we ask if you have been doing short journeys and have you tried driving a longer journey preferably on a dual carriageway for about 30 mins keeping the engines revs above 2000 rpm or around 2500 rpm, if the light doesn't go out then it would be a good idea to get us to check it as soon as possible, we can often find and fix a problem before the DPF gets blocked.


Question. My DPF is blocked and I have been told I need a new DPF can you fix it ?

Ash Deposit on a DPF Temperature Sensor

Ash Deposit on a DPF Temperature Sensor

Answer. Yes we can, there is 3 main types of obstruction that a DPF can fall victim to

1. Soot (particulate matter which is comprised of mostly Hydrocarbons that are normally burnt off during a regeneration)

2. Ash (Minerals & Metals seen in vehicles with higher miles this accumulates in a DPF after each regeneration) and reduces the ability to store soot between regenerations, this can't be cleaned chemically, in this case the DPF is removed and sent away to be cleaned at our head office in a specialist machine that won't harm the DPF then is refitted to the vehicle and reprogrammed.

3. Oil this will contaminate the DPF and quickly reduce its ability to store soot and reduces the exhaust airflow quickly bringing on a dpf fault this can also be a sign of wear in the turbocharger.


Question. What is a Diesel Particulate filter?

A diesel particulate filter (DPF or FAP) is fitted to a diesel vehicle which filters particulate matter from exhaust gases. It traps solid particles while letting gases escape. Filters like this have been used for over 20 years, They reduce particulate emissions to help meet European emission standards and improve air quality


Question. What is Particulate Matter?

Particulate Matter is a mixture of solid and liquid particles, including carbon, organic chemicals, ammonium nitrates, sulphate, sodium chloride, dust, water and a several metals


Question. What is a DPF Regeneration

A DPF fills with particulate matter and need to be cleared, This is achieved with regeneration, which is a process of burning the soot at high temperatures leaving behind a very small amount of ash.


DPF Removal (Delete)

Removal isn't a legal solution and can result in fines up £1,000 for a car and £2,500 for a van, MOT canceled and the vehicle can only be retested in a DVSA testing station with the DPF reinstated.

In 2014 it became illegal to use a car on the road that has had its DPF removed.

diesel-particulate-filters-guidance.pdf  << Please read (external link to .gov.uk)

We diagnose the cause and clean the DPF (if required) while still on the vehicle, then perform a test regeneration saving you money in costly replacement.

A DPF on a higher mileage vehicle is likely to have a buildup of ash which reduces the capacity to accumulate soot, resulting in more frequent regenerations eventually leading to regeneration failure we can also remove ash this does require removal and sending to our head office, it's impossible to dissolve or burn away ash without damaging the DPF.

Cost of our service varies according to the work required,
the typical price varies £50 - £300 (this isn't just a price for cleaning because cleaning alone is only likely to remedy the situation for a short while, the cause also needs to be found and addressed, most faults that cause regeneration failure don't show up on diagnostics equipment so require different methods of investigation)

Regeneration Failure

If Regeneration fails it will lead to a build up of soot which will affect performance and can lead to expensive repair costs, many have opted for removal but this has both legal and has social implications as particle matter emitted from diesel engines is estimated to cause cancer and kill approximately 80,000 people per year.

DPF Problems things you should know

A DPF is often seen as the problem which is why so many garages fail to resolve DPF issues

A blocked DPF isn't usually the problem it is the victim, there are many things that can cause the DPF to block so cleaning is often not the solution but just part of the fixing process.

We use 2 completely different systems to clean a DPF depending on the type of accumulation inside.

Soot accumulation is the most common we have to deal with, this happens due to failed regenerations we can clear this with our mobile cleaning service.

Ash accumulation which is a normal slow accumulation inside a DPF, ash slowly reduces the DPF's capacity to accumulate soot in between regenerations, the rate at which the ash builds up varies between cars, which is why manufactures give an expected life span of 80-100,000 miles, this can be cleaned in a specialist DPF cleaning equipment but does involve removing the DPF from the car but will give the DPF a new lease of life saving on expensive replacement, ash builds at different rates depending on how the vehicle is used, for instance on long journeys it will passively regenerate which produces less ash, with short journeys it will actively regenerate which increases ash build up, using the proper specified oil in servicing is also important as vehicles with a DPF require a low saps oil.

The Law And Mot Test

From February 2014 the inspection of the exhaust system carried out during the MoT test includes a check for the presence of a DPF. A missing DPF, where one was fitted when the vehicle was built, will result in an MoT failure.

www.mobile-dpf-cleaning.co.uk