If your vehicle is displaying the DPF warning light, the first step is to find out exactly why the light is on and what fault code is being stored, we offer a FREE Engine Diagnostic Check to answer this question, once we know why the DPF warning light is on, we can advise you on the next course of action, whether that's a simple Forced DPF Regen or (if the soot level is too high) our Advanced DPF Cleaning Service, you can find more information about these services below.
The most important thing to bear in mind is that you must not ignore the DPF warning light, the problem isn't going away by itself and will get progressively worse until the DPF becomes fully blocked at which point, it may require complete replacement.
Depending on the condition of your vehicles DPF, we may be able to complete a Forced DPF Regeneration (otherwise known as a static regen), this procedure is activated using our vehicle diagnostic equipment and can help extend the life of the DPF by burning off excess soot, this process typically takes 30-60 minutes to complete.
Where regeneration is no longer an option, our Advanced DPF Cleaning Service is the next step, this is a two step process that involves injecting a special DPF cleaning fluid into the filter which breaks down excess soot before passing a second chemical agent through the DPF to remove the cleaning solution and flush out the broken down soot, this takes approximately three hours to complete.
If your vehicle's DPF becomes completely blocked and we are unable to clean it, the filter may need to be replaced.
The cost of replacement filters vary from a few hundred to a few thousand pounds, our workshop is fully quipped to supply and fit new filters if required but our advice is to avoid this by acting on the DPF warning light sooner rather than later.
DPF's were introduced by vehicle manufacturers in order to meet emissions legislation by helping to reduce the amount of pollutants produced by diesel engines.
Like conventional catalytic converters, the DPF helps to convert harmful gases but it's primary function is to trap soot particles, as the soot level increases, the vehicle will attempt to enter a regeneration mode by heating the DPF in an attempt to burn off some of the accumulated soot particles.
This typically happens on longer journeys as the DPF has to reach and maintain a higher temperature which is why its increasingly common for diesel vehicles that are primarily driven at lower speeds or for shorter journeys experience DPF issues.
Firstly, don't ignore it, if the DPF warning light has come on it doesn't necessarily mean there's a fault, it could be that your DPF just needs to be regenerated.
You can attempt to help you vehicle enter regeneration mode by itself, this typically involves driving your vehicle on a longer journey of 20-30 minutes whilst maintaining an engine speed of approximately 2,500rpm, this will vary from vehicle to vehicle, we recommend consulting your vehicle hand book for more information about the DPF regeneration procedure for your vehicle.
If your vehicle is unable to self regenerate and the DPF light has remained on, it's time to contact us.
If you ignore the DPF warning light, in time additional lights and symbols may become illuminated on your vehicles dashboard and your vehicle will likely experience a reduction in power.
Eventually the DPF will become completely blocked, if this happens your vehicle will require a new DPF which can cost anywhere from a few hundred to a few thousand pounds, a blocked DPF can also cause significant harm to other engine components.
In short, no, you should not remove the DPF from your vehicle but it's a grey area, it's not uncommon for garages to offer a DPF removal service as the act of removing the DPF from a vehicle is not by itself illegal, however, using a vehicle on the road with the DPF removed is illegal with penalties of up to £1000 for cars and £2500 for vans.
It's easy to spot a diesel vehicle with the DPF removed as they emit visible exhaust smoke and there are usually signs the DPF has been tampered with, since 2018 MOT testing rules have become much more stringent with MOT Testers now required to check for evidence the DPF has been cut open and welded, should the Tester believe the DPF has been tampered with, they will refuse to issue an MOT test certificate for the vehicle as a missing or tampered with DPF is classed as a major failure.
Payment Assist allows your bill to be spread over four months with no interest, no fee and no credit check (under £1000), you just pay a 25% deposit by Visa debit card with the next three payments taken in monthly instalments.