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How does a DPF work?
DPF stands for Diesel Particulate Filter. The purpose of a DPF is to reduce the number of harmful materials released into the environment during the engine’s combustion cycle. The filter catches soot and other deposits as they’re on their way out of the engine, through the exhaust system, before they exit the tailpipe.
As time goes on, these deposits build up and become a solid. If the solid remains in the exhaust, the engine cannot exhaust properly and therefore, the combustion cycle is disrupted. To stop this from happening, a DPF will go through a ‘regeneration cycle’. A regeneration cycle occurs when the DPF system gets very hot. At this point, the solid deposits vaporise and turn into a gas that is less harmful to the environment than when they originally exited the engine.
Symptoms of a Block DPF Filter?
Error codes such as the DPF light, Glow Plug Light or Engine Management Light will be the first symptoms of a failing DPF.
If the warning light continue to display, you will notice the following symptoms:
Diesel particulate filters have been the cause of some seriously hefty repair bills. Here we tell you what they are, what can go wrong and how to keep your car’s DPF in tip-top condition...
Engine Common Fault Codes Fix:
• P2002 Particulate Trap Bank 1 Efficiency Below Threshold
• P2453 Diesel Particle Filter; Differential Pressure Sensor
• P2452 Diesel Particle Filter; Differential Pressure Sensor
• P2454 Diesel Particle Filter; Differential Pressure Sensor
• P2463 Diesel Particle Filter Restriction: Soot Accumulation
• P0472 Diesel Particle Filter; Differential Pressure Sensor – Signal too low – Defective
• P2458 Diesel Particulate Filter – Regeneration Duration
Causes of blocked DPF’S
Driving a diesel vehicle around town and for mostly short journeys without regular motorway travelling is the main cause of DPF blockage. Ultimately, during your short journey drives, the DPF is building up carbon deposits and due to the lack of motorway driving, the DPF has no opportunity to regenerate.
Vehicle Age & Mileage
Through our experience, we see that most DPF’s start to go at around 80,000-120,000 miles. If you’re in a vehicle which does the odd motorway drive here and then, you may be in the 80,000 range. However, if you frequently motorway drive, you may even get 100,000-130,000 miles out of your DPF.
What is the cost of a new diesel particulate filter?
Diesel particulate filters are very expensive. A new one from a car manufacturer can cost £1,000 and £3,500, potentially wiping out the cost savings associated with driving a diesel.
As cars age, the cost of the replacement DPF could be more than the value of the car – and it is older, higher mileage cars that are most likely to require a new DPF.
There are now other suppliers of diesel particulate filters that charge less, but be careful here: they must still have the correct Type Approval or they may not work correctly and end up costing you more in repairs.
How can I fix a blocked DPF?
If a professional diagnosis of the vehicle fault determines that the DPF is blocked, there are a few options:
It’s worth noting that with solutions 1 and 2, there is NO guarantee that you’ll be DPF problem-free afterwards and are only temporary solutions. This is due to the type of driving that you mostly do. Ultimately, if you’re doing short journeys before you solve the problem, you’re going to be doing short journeys after you’ve solved the problem. Meaning that if you choose option 1 or 2, you may see the dreaded DPF light again.
DPF Delete & ECU Remap (Guaranteed Solution)
This is the only solution that will 100% guarantee that you’ll never have a DPF problem ever again. This solution offers the best ‘peace of mind’ factor.
The process of a DPF Delete & ECU Remap is as follows:
Effectively, what occurs here is that the physical problem of stopping the engine from combusting correctly is removed. Then, the ECU is reprogrammed in a way so that it is no longer aware that a DPF exists. No DPF = No more problems.
So, there are 3 solutions on how to Fix a blocked DPF! If you’re local to Slough (Berkshire) and would like to enquire about our DPF delete / removal solutions, feel free to get in touch with DPFREMOVALS.com for all DPF removals, repair and custom ecu remapping using our contact form or give us a call. We’ll be happy to advise the most suitable solution for you.
*Our DPF Removal service is sold for off-road use only. Removal of a DPF will almost invariably make your vehicle illegal for use on a public road. This is not legal advice and if you are unsure if this applies to your vehicle, please seek further advice.
Blocked DPF removal Solutions, DPF Filter Limp Mode Light Dash Fix, DPF Delete and Remap available in West London, Surrey, Buckinghamshire and Berkshire including Slough, Maidenhead, Windsor, Ascot, London, Marlow, Bracknell, Staines, Reading, Heathrow, Hayes, Southall, Feltham, Hounslow, High Wycombe and Uxbridge.
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DPF Repair | DPF Solution | DPF Service
Blocked DPF Removal Solutions & DPF Delete Remap available in West London, Berkshire, Buckinghamshire & Surrey including Slough, Stokes Poges, Farnham Royal, Denham, Maidenhead, Windsor, Ascot, London, Marlow, Bracknell, Egham, Staines, Reading, Heathrow, Hayes, Southall, Feltham, Hounslow, High Wycombe and Uxbridge.
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