We use cookies to make the site simpler. Find out more about Cookies.

Diesel Particulate Filter

The Rivervale Guide to Diesel Particulate Filter

Do you own a diesel car? If you do, then you most likely have a diesel particulate filter, however, you may not be aware of what it is or how to maintain it.

Don't worry - with over 15 years experience, Rivervale Leasing have all the answers and now so can you!

What is a diesel particulate filter?

A diesel particulate filter is essentially a filter that captures soot and keeps it in the exhaust system to prevent it from being released into the air.

DPF's need to be cleaned and maintained regularly, a process called regeneration.

This is done by exposing the soot to very high temperatures, burning them and turning the particulates into ash.

There are two forms of regeneration used by diesel cars: Passive and Active.

#1 Passive Regeneration

Passive regeneration occurs when the car is driven at high speeds on the motorway.

This allows the exhaust temperature to rise and burn off excess soot captured in the filter.

We highly advise that you drive your diesel vehicle between 30-50 minutes on the motorway to clear the filter

#2 Active Regeneration

Active regeneration occurs when the cars engine management system (ECU) detects the car has reached a predetermined limit (normally about 45%).

The ECU system will then begin a post combustion process of fuel injection to raise the temperature enough to trigger regeneration.

During the regeneration process you may notice some differences with your vehicle such as automatic stop/start no longer works, engine sound is different, an increase in fuel consumption, the engine idle speed is faster, the cooling fans are running, there is an acrid smell from the exhaust.

These changes in your vehicle will all return to normal once the regeneration process is complete, which can take up to 10 minutes.

What Should I do if my Diesel Particulate Warning Light Comes on?

Drive at 40mph or more for at least 10 minutes

This may be enough to complete regeneration and your warning light may turn off

Can i Remove my Diesel Particulate Filter?

You should never ever remove your diesel particulate filter – doing so will result in you automatically failing an MOT test.

Removing a diesel particulate filter will also invalidate any insurance cover because it makes the vehicle illegal for road use. The cost of reinstalling a filter could be in excess of £1000.

If you regularly make short, low speed journeys you should talk to one of our Account Managers at Rivervale to discuss whether a diesel vehicle is the right choice for you.

 

More from our blog…

Excellent 99 / 100

1504 Verified Reviews

Charlie Wakefield

I have got my cars from rivervale everytime and couldn’t recommend a better place to get a car. Always a top service and I have got my cars...

Added 2 days ago

Lois Groves

Jim mercer senior account manager was very helpful helping me sort out my van and I would recommend other people to go there as well 😀...

Added 3 days ago

Jay

Rob at rivervale was great the whole way through our dealings. I had a million questions and queries regarding the car and spec and nothing was...

Added 3 days ago

Nicole Rees

This is my second time leasing a car through Rivervale. They make the process from start to finish very easy, even down to handing over the old...

Added 3 days ago

Paul Edwards

Amazing service from Rob Semple. Helpful and efficient. Always available when we needed him. Thank you.

Added 3 days ago

Dal Gill

Above and beyond service from Rivervale. I had the pleasure of dealing with Jake Zeegen - senior account manager. From the onset he has been...

Added 3 days ago

Alan White

My last 2 cars have been arranged through Rivervale and I will certainly be going back in a few years. Again the first class service made the...

Added 3 days ago

George Flegg

Very professional and friendly service would definitely recommend

Added 4 days ago

Ian

I found the service provided by Rivervale to be excellent, efficient and very helpful, and I secured the vehicle I was looking for within just...

Added 4 days ago

Customer

Dealt with Rob who arranged my new van for me. He was excellent and went out of his way to help me out. Couldn’t recommend them more.

Added 4 days ago

Arval Lex Autolease Alphabet BVRLA Seagulls Leaseplan Sussex Cricket Leasys Hitachi Santander