Ensure your diesel particulate filter (DPF) is clean and running efficiently at Golds Garages. Regular short drives and stop/start driving can cause your diesel particulate filter to underperform resulting in reduced engine performance, increased fuel usage and lack of power.
Golds Garage Ford are specialists in DPF Cleaning with in-house technicians and specialist machinery ensuring your car is in good hands.
Please note: Some companies are removing/deleting DPF, which is illegal and will result in MOT Failure potential Lease Penalties (for example Loss of deposit, voiding original manufacturer warranty & loss of vehicle value).
DPFs can be problematic
Diesel particulate filters reduce pollution but you need the full story…here are the pros and cons
Diesels produce lots of soot (particulate matter) that can cause respiratory problems and contribute to the risk of cardiovascular diseases.
Modern diesel cars (since 2009) have to be fitted with a Diesel Particulate Filter (DPF) in the exhaust to stop this soot passing into the atmosphere.
The aim is an 80% cut in particle emissions but the technology’s not without problems and we often encounter blocked PDFs.
To maintain performance a DPF has to be emptied regularly. This is usually done passively in a process called ‘regeneration’: when the exhaust temperature’s high enough, on motorways or fast A-roads.
• The collected soot is burnt off, leaving only a tiny ash residue.
• The ash can’t be removed – unless the DPF is removed from the vehicle and sent away for specialist cleaning – but a DPF in a car used correctly should be good for well over 100,000 miles.
Many cars don’t get the right sort of use for passive regeneration to work so car manufacturers build in ‘active’ regeneration where the engine control software senses that the filter’s getting blocked and injects extra fuel into the engine to raise the exhaust temperature and trigger regeneration.
Active regeneration will be initiated every 300 miles or so depending on how you use your car and will take 5 to 10 minutes to complete. But it’s a problem if your journey’s too short and the regeneration doesn’t finish.
During active regeneration you may notice:
• Cooling fans running
• Faster engine idle speed
• Automatic Stop/Start doesn’t work
• Increased fuel consumption
• A hot, acrid smell from the exhaust.
• The engine sounds different
Don’t ignore a warning light
If you get a warning light showing that the filter’s blocked, it should be possible to complete an active regeneration cycle and clear the warning light by driving for 10 minutes or so at speeds over 40mph.
If you ignore a DPF warning light and keep driving in a relatively slow, stop/start pattern, soot will build up in the filter until your car goes into ‘restricted performance mode’ to prevent damage.
If you let it get this bad:
• Driving at speed alone won’t be enough.
• You’ll have to get a dealer to do a manual or ‘forced’ filter regeneration.
• In extreme cases they may have to replace the filter which can cost at least £1000 plus labour.
In most cases there’s only a short time between the DPF being partially blocked and it getting so blocked it needs a manual regeneration.
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Interim Service plus MOT - £143.00
Full Service - £189.00
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Anti-Freeze Change - £45.00
Air-Con Check & Re-gas - from £69.00
Wheel Alignment - £40.00
Dealer Diagnostics - £69.00
Summer/Winter Healthcheck - £12.95
DPF Filter Cleaning - £POA
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