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Diesel Particulate Filter Cleaning

South Manchester DPF Clean


Running with a blocked DPF filter can lead to expensive engine damage and cause you to fail your MOT

  • DPF or Anti-Pollution warning lights on your dash?
  • Car in 'limp home' safety mode?
  • Poor acceleration and MPG?
  • Facing expensive repair costs to replace the DPF?
  • Confused what the best solution is for you?
  • Running with a blocked DPF filter can lead to expensive engine damage. [BOOK NOW]

There is only a short period of time between you becoming aware that your DPF is becoming blocked, and the risk of expensive engine damage.

Don't delay, if your DPF is blocked, book your car in for a thorough DPF clean - please phone 0161 710 2069 or fill in the booking form or fill in the booking form below.


Phone on 0161 710 2069 or fill in this form.

DPF Filter Cleaning

We offer two levels of DPF filter cleaning, depending on the levels of blockage in your DPF.

DPF warning light
Thorough Clean
Cost: £150 + VAT
Time: 1-2hrs

This solution is effective in 90% of cases, and takes between 1-2hours, using the latest equipment from Forte - a leading partner in DPF equipment for expert cleaning of DPF filters.

  1. Repeated injection of 'Forte Power Clean DPF Cleaner' every 5 seconds
  2. Engine is run at 2000/2500rpm for 5 mins
  3. Add 'Forte Power Clean DPF Flush'
  4. Again, the engine is run at 2000/2500rpm for 5 mins
  5. Results are tested
Critical Repair
Cost: £250
Time: 24 - 36 hrs

If your filter has become completely blocked, the Critical Repair option is appropriate, involving removing and replacing your DPF.

engine warning light
  1. Remove DPF filter from your vehicle
  2. Soak DPF in a non-corrosive chemical solution for 12 hours to free up the clogging material
  3. Extensive DPF flushing with a Carbon Clean DPF Flushing machine - can take up to 5 hours
  4. Initial testing of the DPF
  5. Refitting your DPF
  6. Final tests after DPF is refitted

Whichever solution works for you, we advise having an oil and filter change after this procedure to stop any loose deposits clogging the engine.
We have further options available for injector cleaning to cover all areas.

DPF Before Cleaning
DPF - before cleaning
DPF After Cleaning
DPF - after cleaning

Frequently Asked Questions

What Is A DPF?

A diesel particulate filter (DPF) is a filter; the filter itself consists of a ceramic or metal honeycomb structure coated with precious metals like platinum or palladium. These metals facilitate the oxidation of the trapped soot, resulting in a reduction of harmful emissions from diesel cars but because they only have a finite capacity, this trapped soot periodically has to be emptied or ‘burned off’ to regenerate the DPF.

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Why Does A DPF Become Blocked?

Over time, the trapped soot and particulate matter can build up in the filter, which can reduce its effectiveness. This can happen for a variety of reasons, including:

  • Short trips: If you frequently take short trips in your diesel vehicle, the DPF may not have enough time to heat up and regenerate, which can lead to a build-up of soot.
  • Low-quality fuel: Using low-quality fuel can increase the amount of soot produced by the engine, which can lead to a build up in the DPF.
  • Faulty engine components, such as the fuel injectors or turbocharger, can lead to increased soot production. This is because these components help to control the combustion process, and when they are not working properly, more soot is produced. This, in turn, can cause the DPF to become clogged, leading to decreased engine efficiency and fuel economy. To ensure optimal vehicle performance and prevent further damage, it’s crucial to regularly clean the DPF. In fact, failing to do so can result in various issues, such as reduced engine efficiency and fuel economy, as well as a clogged DPF It’s advisable to clean the DPF every 80,000-100,000 miles or as per the manufacturer’s recommendation to prevent costly repairs and maintain performance.

Short journeys at low speeds are the prime cause of blocked diesel particulate filters.

Other things that are bad for DPFs include poor servicing and not looking after your DPF.

A diesel particulate filter on a poorly serviced car may fail sooner than a well maintained one, generally, they should last for 80,000 to 100,000 miles depending on your driving style.

It’s important you use the right type of oil as well – some oils contain additives that can actually block filters.

Performance modifications can damage a diesel particulate filter, as can using low-quality fuel and even running the car frequently on a low fuel level as the car may avoid DPF regeneration.

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How Do I Know If My DPF Is Blocked?
  • DPF dashboard warning light is lit.
  • Reduced fuel economy.
  • Loss of power, reduced acceleration, lower speed etc.
  • Engine smells acrid.
  • Rough idling.
  • Dirty / black exhaust emissions.
  • Problems starting your vehicle.
  • Your vehicle may suddenly go into 'limp-home' or 'restricted performance' mode.
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Can A Blocked DPF Ruin My Engine?


  • Reduced efficiency of the exhaust system
  • Gas build up and higher temperatures can damage your engine
  • Oil can carbonise in the turbo system, leading to engine damage
  • Damage to your turbocharger
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How Do I Maintain My DPF Filter?

The best way to maintain a DPF is to make sure it’s fully able to regenerate itself when it’s full of soot (when the warning light appears).

Get your car flushed every 80,000 – 100,000 km with a proper chemical cleaning solution

There are two types of regeneration: passive and active.

Passive Regeneration

Passive regeneration occurs when the car is running at speed on long motorway journeys which allows the exhaust temperature to increase to a higher level and cleanly burn off the excess soot in the filter. So it is advised that drivers regularly give their diesel vehicle a good 30 to 50 minute run at sustained speed on a motorway or A-road to help clear the filter.

However, not all drivers do this type of driving regularly – which is why manufacturers have designed an alternative form of regeneration.

Active regeneration

Active regeneration means extra fuel is injected automatically, as part of the vehicle’s ECU, when a filter reaches a predetermined limit (normally about 45%) to raise the temperature of the exhaust and burn off the stored soot. Problems can occur, however, if the journey is too short, as the regeneration process may not complete fully. If this is the case the warning light will continue to show the filter is still partially blocked. In which case it should be possible to complete a regeneration cycle and clear the warning light by driving for 10 minutes or so at speeds greater than 40mph.

You will know whether active regeneration is taking place by the following symptoms:

  • Engine note change
  • Cooling fans running
  • A slight increase in fuel consumption
  • Increased idle speed
  • Deactivation of automatic Stop/Start
  • A hot, acrid smell from the exhaust
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Will I Fail My MOT With A Blocked DPF?

A blocked DPF will result in an MOT Failure. Removing a DPF is illegal, and will also result in a MOT failure.

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Can't I just replace my DPF?

A new DPF can be expensive, and you will still need to pay for removal of the old one, and refitting the new one.
We will return your filter to a 'like-new' state for a fraction of the price of new.

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Can't I Just Remove My DPF?

No - it is illegal to remove your DPF.

In 2009, legal emissions limits effectively made it compulsory to have a DFP fitted in diesel cars. It is illegal to remove your DPF, and will invalidate your insurance policy.

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Can I Use Cleaning Fluids To Clean The DPF Myself?

This might be a good short term solution - if you can't drive your car to a garage, this can help to get your car moving, but it will not fix the issue.

Our thorough DPF deep clean will remove the vast majority of the accumulated soot from your DPF, and will give your car many extra years on the road.

Don't waste money on a short-term temporary fix.

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Shouldn't A DPF Clean Itself?

Around every 300 miles, diesel engines 'regenerate' the DPF by increasing the temperature to burn off any collected soot particles. Some of the resulting ash collects in the filter, and in time the DPF becomes blocked with this accumulated ash, soot and carbon. At this point, running the vehicle will result in damage to the engine.

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DPF Trouble: Short Journeys At Low Speeds

If you make lots of short, low speed journeys, the inbuilt 'regeneration' process to automatically clean your filter will not be effective, leading to your DPF quickly becming blocked. Generally, drivers are advised to regularly drive on motorways at sustained speed for 10minutes to an hour, in order to let the vehicles automatic regeneration process work effectively.

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What our customers say about us...
12 Mar 2024 Had such a seamless drop in today, the girl on reception was so lovely, helpful and trustworthy. I hadn’t made an appointment but they made such an effort to see me quickly and like I said the team are so lovely. Thanks again guys !!
17 Mar Sept 2024 The lady on reception made acceptional brews The craftsmanship on my vehicle was quick & efficient
01 Mar 2024 Always a great experience with them, I get my tyres done here and my MOT, Communication on their side is perfect,would reccomend.
26 Feb 2024 Excellent service and communication
20 Feb 2024 Super quick and friendly service
14 Jan 2024 Great service from the team Last minute MOT required Very accommodating Will definitely use again
15 Dec 2023 Very good customer service, very honest and fair pricing.
8 Nov 2023 Ella made the whole experience really calming and comfortable. Prices were fair and reasonable.
25 Oct 2023 Excellent service and work
12 Oct 2023 Fit me in at very little notice just before closing time
23 Sept 2023Always so friendly and nice to me when I go! Have sorted my car out before after Halfords didn’t do the work properly. Fully inspected my tyres and put my new wheel on I got off eBay and was so reasonably priced for the work they did :)
19 Sept 2023Fit me in at very little notice just before closing time
10 Sept 2023Great service, with friendly and helpful staff. Would recommend.
4 Sept 2023Very friendly and accommodating reception staff, and a great MOT guy, you will be looked after here.
27 July 2023Excellent family run business - need more places like this. I believe the garage is ran by a lovely young lady on reception called lily. She is so polite and super helpful. Another lady there called ebonie helped me so much throughout the process. Top service keep it up👍
23 July 2023Great place nice people. Reasonable prices and good service come here for my MOT and any work I need every year and never had a problem. Would definitely recommend 5⭐️
19 July 2023Great service quick and reliable. Been here for many years and never had a problem !
17 July 2023Great prices.Fast service
9 July 2023Excellent service. Reliable cost and friendly people Always come here for any problems I have with my car. Service and MOT
7 July 2023I've been bringing my car to the Timperley Service & MOT team for years now and so have my family & friends. I've never had any issues at all and I'm always quoted for work much cheaper than other garages. They always get things done quickly and to a great standard and I've had follow up work completed for free a number of times. The staff are all very friendly and helpful and a big shout out to Lily at reception!
7 July 2023Been coming here for a few years now and always had the best service. Special shoutout to Lily and Ebony they have always been there for me in my time of need! Thanks again!
5 July 2023Great service today. Had a problem with my BMW 3 series and the guys were so helpful. Will definitely be coming back here for my mot next year. Cheers guys and ladies on reception
4 July 2023Amazing service
16 June 2023I was referred to Timperley Service and MOT from its ‘sister’ garage in Withington (also excellent!), due to the nature of work that needed to be done on my car. What a fantastic service!; friendly, efficient staff - Lily was excellent at keeping me updated as to what work needed to be done and as the part was on back order, kept in regular contact re updates. Once the part arrived, the work was done in a day and cleaned, ready for me to pick up - top notch! Thank you!
19 May 2023I've been coming here for the maintenance of both our cars and the staff is always helpful. They always do what's necessary for the cars and never overcharge. In fact, they have undercharged me several times. In short, good people, good service and good prices. Highly recommended.
16 May 2023Came in for a mot and full service today on my bmw. Everyone was so helpful and friendly. Even got a cup of tea whilst I was waiting for my taxi! Brilliant service thanks again
5 January 2022Had a full mot and service which I needed last minute. They kindly fitted me in and did a great thorough job all for very reasonable price. Will gladly use in future as its hard finding someone you trust
07 December 2021amazing - offering free collection and delivery from my workplace and home, at dates and times that were convenient to me and providing a fantastic service at a very reasonable price.
5 November 2021The integrity and honesty of these guys are so appreciated. I had to wait a while but was kept updated in my place in the queue. These guys never stopped ....... and left me with tyres all good for getting to work on Monday...... Would absolutely recommend this garage. Would give 10 stars if option available.
2 January 2022Many thanks for the brakes on my Kia Sportage well done
23 December 2021Thanks Nick and Pav and the team. I came in to have a MOT done, as always, great service, on time, great price. Will be back in the Spring for my next service. All the best, Greg.
6 December 2021Very friendly and professional service. Will definitely use again.
17 December 2021Good efficient service.many thanks.
10 June 2021Excellent service would definitely recommend.
24 May 2021Had a service done on my Fiat 500. Great price. Dan even dropped my car off for me as I struggled to pick it up. Top service. Thank you very much.
29 Apr 2021I've brought my car here a couple of times now & every time it's spot on. Really trustworthy guys, it can be quite intimidating walking into a garage.
28 Apr 2021Very quick turnaround - gave them late notice and they were able to take my car in and give it a full service within 24 hours.
26 Apr 2021 Excellent price & availability of dates.
26 Apr 2021 I rang up to book my car in & they were able to fit me in the next day. I had an MOT & service. Great price & great service.
26 Apr 2021Brought my car in as I was having issues with my brakes, the garage advised that I required pads and calipers. they advised prices upfront and carried out the work quickly. Extremely helpful. Will be returning soon but hopefully not too soon! Thanks again guys.
23 Apr 2021Excellent people. Excellent service. Most of all, excellent price. Well done Danny and the team. Thank you
25 Mar 2021 Quick, friendly service.
02 Mar 2021Excellent service they where very helpful on my skoda today. All the staff are very approachable
17 Feb 2021Really friendly guys, made sure everything was spot on before I left. Will definitely go back!
19 Jan 2021 Went to the garage for tyres. Ended up having a service and mot too. really great prices and quality of work to match. Will definitely be going back when I need to.
18 Jan 2021 Very good service on Wife's Mercedes GL. Experienced team always happy to go the extra mile and make sure that any work done is needed. Will research to find the right solution to the problem. Good old fashioned mechanics who know what they are talking about.
16 Jan 2021 Even though this was the first time I’d gone to these guys they bent over backwards to help me out of a problem. They put my ageing BMW back on the road and it drives like a new car. Apart from being really professional, the thing that impressed me most was their honesty. I’ll be recommending these guys every opportunity I get.
16 Jan 2021 Thank you to Nick & the team for the great job they did in repairing & servicing my car. 5 stars.
14 Jan 2021 Great service from speaking initially on the phone to the work that was carried out on my car. Prices were very reasonable and much cheaper than a quote I had nearby. I can recommend this garage and I would definitely use them again
12 Jan 2021 Great service from speaking initially on the phone to the work that was carried out on my car. Prices were very reasonable and much cheaper than a quote I had nearby. I can recommend this garage and I would definitely use them again
12 Jan 2021 Great service from speaking initially on the phone to the work that was carried out on my car. Prices were very reasonable and much cheaper than a quote I had nearby. I can recommend this garage and I would definitely use them again
12 Jan 2021 I used the garage for Service and Mot on my car. The price was excellent and the service was professional, quick and spot on. Would definitely recommend to friends and family.
11 Jan 2021 Every one at Motor Trade Solutions were polite and knowledgeable. I got tyres before Christmas and a service and MOT last week. Their prices are really sensible. All my family have started to use them.
11 Jan 2021 Great work done by some skilled lads. Had bumper repaired and full service. I will not go anywhere else now. Support local. Support the best.
30 Nov 2020 Great service from Dan and the team, service completed in quick time and completed everything as and when they said they would. Would definitely use again.
24 Nov 2020 I use a new garage to day well new to me its a Family affair, their actions was excellent my car was up and running within the hour of my enquiring THANK YOU 10/10.
Opening Times
  • Monday: 8am - 6pm
  • Tuesday: 8am - 6pm
  • Wed: 8am - 6pm
  • Thursday: 8am - 6pm
  • Friday: 8am - 6pm
  • Saturday: Closed
  • Sunday: Closed
Timperley Service & MOT
Timperley Service & MOT
Timperley Service & MOT Centre
Canal Road,
Canal Road,
WA14 1TF