5 🌟 sorted my qashqai straight away, fault found and he replaced the intake pipe and done the diagnostic. thanks bernie
Kelly Marie Roderick
Kelly Marie Roderick
2019-05-24T14:02:55+0000
had bernie from darlington hes absoluley brill sorted my pdf car runs better than when i bought fromm evans halshaw who forgot to telk me it was fitted with a dpf exhayst
Susan Wilson
Susan Wilson
2019-05-09T18:54:33+0000
Sourced and replaced a part for me a lot cheaper than and more convenient than all the garage quotes I got , work was done at the highest standard and also advised me on after care.I could not recommend this guy more a pleasure to deal with thank you.
Holmes Gavin
Holmes Gavin
2018-12-13T00:06:45+0000
Highly recommend! I couldn’t thank Bernie enough today for sorting a DPF issue out on one of my cars, thanks again mate
Damian Mottram
Damian Mottram
2018-11-30T17:58:44+0000
This is the first person I’ve called that actually knows what he’s talking aboutFixed the limp mode on my sprinter van and now I’m back to work. Thank you very much. I’ll certainly call you again with any issues on my vehicles again. Fixed within 12 hours of my enquiries tooAmazingThank you
Ben Griffiths
Ben Griffiths
2018-11-16T15:31:36+0000
Bernie is a genuinely nice guy and knows anything and everything about DPF’s, he has fixed my van 2-3 times now and I wouldn’t use anyone else for diagnostics or DPF problems since meeting him.
Tom Musgrave
Tom Musgrave
2018-10-29T21:02:59+0000
1st class service cleaned my DPF
Jason Grimes
Jason Grimes
2018-09-18T20:33:29+0000
After been too two different garages they fixed parts that didn’t need doing, terraclean fixed it costing only £130 after we’d payed garages over £500 which didn’t fix it thank you so much 😊
Lucy Todd
Lucy Todd
2018-09-17T17:36:31+0000
Bernie you are absolutely amaZing great advice and great service
Amar Aslam
Amar Aslam
2018-08-20T19:19:56+0000
5 star � plus. After one phone call yesterday Bernie appeared today like a knight in a shinny van. He quickly identified the problems and before I knew it Bernie had sorted it.Thank you so much the cars ruining like a dream now. Highly recommend A1 Terraclean and will definitely be using again in the future, thanks again
Chris Wright
Chris Wright
2018-08-04T18:37:21+0000
Bernie has just fixed my car. Diagnosed the problem and replaced a faulty sensor linked to the DPF. All done in less than 45min. Top job. Really nice guy.
Tony Dorling
Tony Dorling
2018-07-10T13:11:36+0000
Great service, competitively priced and on time, would recommend this service to anyone who wants the job done professionally with no fuss.
Eric Barrass
Eric Barrass
2018-06-04T12:03:15+0000
Just had Bernie out to repair my car. Had engine management light on, also engine malfunction light. Car was in limp mode. Bernie diagnosed the problem and repaired within two hours. Lovely man that explains exactly what was wrong. Would recommend A1 Terraclean to anyone having problems with there dpf. Thanks for great service......
Margaret Graham Pybus
Margaret Graham Pybus
2018-05-22T11:30:28+0000
Thanks Bernie, originally I was quoted £2,500 for a new DPF from my dealership for a new one! But was advised to get in touch with Bernie as he would be able to help! I am chuffed to bits with the customer service we received and value for money! Came out straightaway and very informative! Thanks again!x
Katherine Goddard
Katherine Goddard
2018-03-26T18:39:01+0000
Bernie is an absolutely top bloke took my dpf off for cleaning ,bang on time , quality service will 100% recommend him ! 5 stars
Paul Collier
Paul Collier
2018-03-22T16:24:58+0000
My scirocco went into limp mode due to dpf problems and I was beginning to loose all hope with it but A1 sorted the problem with no bother at all definitely recommend them and will be using them again �
Sam Sinclair
Sam Sinclair
2018-03-19T18:06:44+0000
Brilliant service from Bernie, went out of his way to help me sort the work van out and a very personable chap!Very knowledgeable with a good diagnostics head! Highly recommend!
Paul Hill
Paul Hill
2017-10-28T10:44:38+0000
Roshan Singh
Roshan Singh
2017-10-15T06:55:06+0000
I can’t recommend Bernie enough. Not only is he excellent at engine and DPF cleaning, he also helps identify any problems that might cause problems in the future. He’s a really nice gentleman as well, he didn’t mind me sending numerous messages about my car and was always polite and prompt with his replies. Yesterday he went out of his way to fit me in on a busy Sunday afternoon when I was having problems with my car, thanks Bernie, much appreciated!!!
David Millward
David Millward
2017-09-25T12:52:10+0000
Bernie carried out a clean on a Range Rover Vogue and Jag XKR and seen a fantastic increase in MPG! Great customer service!!! Thanks!!!
Nick Hampton
Nick Hampton
2017-08-19T06:47:51+0000
We had our BMW 320i and 335d 'Terracleaned' last week by Bernie, who performed an Induction + Engine clean on the 320i and an EGR/Turbo + Engine clean on the 335d. Bernie noticed a misfire with the 320i after the job was finished, and suggested replacing the spark plugs, which was a good call as the spark plugs in the car weren't the correct type. Since the Terraclean / Spark plug change the car is completely transformed, with a massive increase in MPG. Motorway MPG is up from 42 to 52 and street driving has gone up from 25 to 34. It picks up speed better and any niggles I had before are now gone. As for the 335d, I immediately noticed that Turbo spool up was quicker, so the power comes in sooner and stronger. As for the MPG, it was pretty good before, getting about 48mpg on the motorway and 28mpg around town, but now I am getting about 5mpg more. I'd strongly recommend getting your car Terracleaned if you've just purchased a new, higher miles vehicle where you're unsure how well it's been looked after in the past... I intend on getting my cars Terracleaned every 2 years in order to maintain the benefits I'm noticing.
Rachael Jackson
Rachael Jackson
2017-06-30T21:13:17+0000
Cannot recommend the Terraclean service enough. I saved over £1000 on a main dealer recommendation for new DPF by having a clean which will offer me at least another 20,000 miles before needing a replacement filter. Thanks again.
Catherine Phillipson
Catherine Phillipson
2017-06-15T19:54:54+0000
Great service ! Will definitely use again and would recommend to anyone .
Michael Timney
Michael Timney
2017-06-08T12:42:06+0000
Highly reccomended, phoned Bernie today, 05-06-17, he arrived at agreed time and, with the minimum of fuss, quickly diagnosed the problem on my 2.0lt Mondeo tdci. Problem sorted very swiftly even though it was raining and he was working outside. Knowing the sort of labour costs garages charge, all I can say is that I was very pleasantly surprised when presented with the bill. Knowledgable, friendly service at a very fair price. Thankyou Bernie.
Julian Lordon
Julian Lordon
2017-06-05T19:18:45+0000
Booked in today for egr and turbo clean on mk4 golf gt 130 as turbo was overboosting.Bernie came checked turbo and fault codes and said it only needs a normal clean.He was a pleasure to deal with and is vastly experienced he explained in detail every check he done.Excellent result no over boost, throttle response and engine runs smoother. Getting 6 mpg more aswell.Excellent service
Matthew Hall
Matthew Hall
2017-05-13T21:22:35+0000
DPF removal and clean on my Ford Focus 1.6TDCIDue to my poor MPG (43 average) and the car going into limp mode i spoke to Bernie, he told me the DPF would be totally clogged with ash. He took the car away to carryout the DPF clean.When i got it back it was like driving a different car, since i have had it back my average MPG is now 63. Great service and highly recommended.Thanks.
Mike Passman
Mike Passman
2017-04-22T11:35:09+0000
Bernie really cares about his customers and it shows, very helpful and knowledgeable person. Offering great advise. Will use again in the near future and would recommend 100%.Thanks for work today!
John Brannan
John Brannan
2017-04-21T14:03:35+0000
Bernie came to my home and did a clean on my 2010 Seat Leon FR. The process was straightforward from a customer point of view.Additionally Bernie helped me with some fault diagnosis on my turbo whilst he was here; potentially saving me a large amount of money had I taken it into a garage. Highly recommend A1 Terraclean, customer service at its best and Bernie is a genuine guy with a good bit of crack about him.
Mark James Sowerby
Mark James Sowerby
2017-04-01T12:52:58+0000
Lee Moody
Lee Moody
2017-02-25T16:24:55+0000
Very good service highly recommended. Has a lot of knowledge in his profession. Car feels much smoother and less noisy.
Joshua Purvis
Joshua Purvis
2016-11-30T11:16:07+0000
Was very sceptical about the terraclean process. Didn't think it would make any difference to my car but a hit to the wallet yeah haha. Got the service done today on my vauxhall astra 2.0 sri. It's made a huge difference to the driving....car seems alot more responsive and drives much moother .well worth the money great service thanks
Daniel Gibson
Daniel Gibson
2016-10-22T20:17:47+0000
I was given dodgy information from a garage charging me for regenerations which they didn't do and trying to charge me £1250 for a new DPF. A1 TerraClean came out, arrived early and had the faulty sensor replaced rapidly. 5* service and no messing about. Polite, friendly and genuine service I would strongly recommend and will be using again in the future if the need arises. Thank you
Lee Guy
Lee Guy
2016-08-04T15:14:59+0000
Good professional service on my insignia, used to have a lot of black smoke out the back but now nothing & the mpg is better & general running of the car is like new, would highly recommend.
Raymondo Meades
Raymondo Meades
2016-07-18T14:34:34+0000
brilliant system really polite professional guy to deal with will definitely reccomend noticed an increase in performance straight away 100% the way to go for your engine cleaning thanks again bernie
Jonathan Willis
Jonathan Willis
2016-05-21T16:45:30+0000
Well I had looked in some detail of the TERRACLEAN SERVICE so last week decided to get my local agent Bernie to cast his magic wand over my 2004 SPRINTER VAN with 250.000 miles on clock...even though the engine was mechanically sound it struggled to achieve 65mph on roads.WOOOOOOWWWW .... MY VAN IS NOW DRIVING MINT !! PULLS LIKE A TRAIN...I CANT BELIEVE THAT AFTER ONE HOUR HOOKED UP TO BERNIES EQUIPMENT THAT THE TRANSFORMATION IS JUST.... STUNNING !! HIGHLY RECOMMEND THIS SERVICE.
Geoff Todd
Geoff Todd
2016-05-07T06:46:47+0000
Bernie is a very knowledgeable mechanic, he found the problem very quickly and fixed it on the spot, I also had the Terraclean and the van is sounding and running much better. I will be using this service every year now.
Kathleen Brain
Kathleen Brain
2016-04-30T07:02:33+0000
Got my focus 2.o tdci done on 94 k miles and must admit was always sceptical about it but glad i took the leap. Definately made an improvement on tickover, performance and overall sound note has changed also. Feels a lot better to drive. Even cleared the fault and regen codes. Would definately recommend it if your old plugger is up on the miles and feeling lumpy. Happy 🙂
Stuart Dalton
Stuart Dalton
2016-02-24T13:26:00+0000
Great guy. Very knowledgeable. Helped diagnose the issue I have with my car
Richard Firth
Richard Firth
2016-02-13T12:56:01+0000
Absolutely recommend Bernie to do your car the performance is unbelievable . Vauxhall insignia was sluggish and now runs like a dream thank you x
Sharon Libby Searle
Sharon Libby Searle
2016-02-06T22:07:30+0000
My dad got his Vauxhall Vectra 1.9 150 CDTI done by terra clean what a difference great service
Scott Lawson
Scott Lawson
2016-02-01T17:58:33+0000
Absolutely fantastic, I was having major problems with my Lexus, had new dpf fitted and it was still pluming embarrassing vast amounts of smoke, constantly getting it taken off and cleaned!! Then Burnie came and sorted it all, so incredibly knowledgeable and genuine lovely guy!!! Would give 10 stars!! Saved me a fortune!! Now drives like a dream not a puff of smoke!! And so much better on fuel consumption!!!! My dad had his car done as well and he says it's driving like a new car, it has power he didn't know it had!!!! Also better on fuel consumption!! Really impressed!!!
Lisa Hillyard
Lisa Hillyard
2016-02-01T11:36:12+0000
Had a Terraclean done on our Land Rover Defender, very, very pleased with the results-Ian Campbell, you are a star
Mags Farquhar
Mags Farquhar
2015-11-11T12:26:25+0000
Just been out in the car after having it terracleaned today. Initial observations are a noticeable improvement in throttle response and reduction of engine noise. Very happy so far. Highly recommended. 2012 porsche cayenne hybrid. Thanks.
Richard Fysh
Richard Fysh
2015-11-10T14:54:34+0000
Had this done to my insignia and it's getting more mpg and not as sluggish on setting of thank u so mush
Gary Bates
Gary Bates
2015-10-21T17:36:53+0000
Had my wife's ford ka on a 03 plate done today can't believe the difference well worth every penny already arranging for my car to be booked in excellent service all done at home highly recommend !!
Adam Hall
Adam Hall
2015-08-28T19:40:52+0000
Great service very helpful and thorough
Sy Cogan
Sy Cogan
2015-08-23T12:35:49+0000
Bernie recently cleaned my Mercedes CLS350 and very impressed with the result!
Danny McCabe
Danny McCabe
2015-08-16T14:42:01+0000
Very good service would recommend to any 1 happy now my Astra boosting mint again 🙂
Ste King
Ste King
2015-07-20T13:26:45+0000
Tim Beadle
Tim Beadle
2015-06-04T06:40:48+0000
Great guy and great service, would recommend to every one
George Eddon
George Eddon
2015-05-15T09:47:41+0000
Excellent. Been on 3 computers previously and none of them could fix the problem. Terraclean came and fixed it straight away. Very impressed
Anthony Nelson
Anthony Nelson
2015-05-14T20:59:37+0000
Fantastic service, was running late but rang ahead to make me aware. First impressions are good, my 120d seems quieter, smoother and more responsive. Look forward to seeing the figures when it gets an MOT in a couple of weeks!
Sam Teasdale
Sam Teasdale
2015-04-13T15:06:15+0000
Toria Anne Coe
Toria Anne Coe
2015-04-06T20:32:54+0000
Just had my Audi a4 terracleaned it feels smoother and quieter anyone who knows me you've got to have this done there's a real difference with performance
Darren Reeder
Darren Reeder
2015-03-21T13:56:32+0000
Had my freelander 2 cleaned . It sounds , moves and reacts faster ... I had tried cleaning fluid through the fuel tank many times before, this is the business. Looking forward to see if the fuel economy comes with it. Also very polite, punctual guy. Thank you
Paul Richards
Paul Richards
2015-03-14T18:02:05+0000
Absolutely amazing!!!! This guy knows his stuff!!! Was contemplating getting rid of my BMW X3 due to airmass faults and not running correctly! And like magic this guy sourced what was causing the air mass fault isolated to double check then fixed the problem and done a full clean and I feel like I've got a brand new car!!! Very impressed and would highly recommend to EVERYONE!!!! Worth every penny!!! Thank you again
Michelle Busuttil
Michelle Busuttil
2015-02-16T19:32:45+0000
Bernie is very friendly and helpful. My car just had the terraclean done and can honestly feel a great difference smoother more power and i only tested a small time but better Mpg!Would highly recommend A1 terraclean Top job!!
Andy Morris
Andy Morris
2015-02-07T13:12:34+0000
Great service, excellent value for money. Will be recommending to others!
Jonathan Hatfield
Jonathan Hatfield
2015-02-01T10:34:55+0000
Mustafa Arkan
Mustafa Arkan
2015-01-21T15:20:43+0000
Had depolution problem with car. Had engine and turbo clean. Car running better than ever and fault not come back on.
Ashley Wilford
Ashley Wilford
2015-01-20T13:20:57+0000
Leigh Porter
Leigh Porter
2015-01-16T06:54:48+0000
Michael Walls
Michael Walls
2015-01-11T22:33:37+0000
Had my octavia vrs done today.brilliant job!!very pleased with the work done.car is a lot more responsive.thank you!!!
Chris Kilvo Kilvington
Chris Kilvo Kilvington
2014-12-29T18:56:36+0000
Great job on my van , runs much smoother and more responsive , thanks for a great service
Craig Goodenough
Craig Goodenough
2014-11-22T08:08:06+0000
Had terraclean done on our astra and peugeot back in September the results are just unbelievable astra 59reg with around 29000 on clock is running like new. The pug 206 1.4 hdi with 106000 had the full treatment and the results are fantastic feels like a new engine as been dropped in ran it dry and we are getting 750 miles on a tank of fuel mostly motorway. All in all fantastic would recommend this to everyone who wants to keep their cars tip top thanks bernie, will be booking both cars in again next year
Richard Anthony Brown
Richard Anthony Brown
2014-11-18T17:06:29+0000
Highly recommend!
Michael Hudson
Michael Hudson
2014-11-09T20:00:57+0000
My mk 4 golf is full of pull again after the terraclean and stoped the anonoyin limp mode at 80
Jamie Isaac
Jamie Isaac
2014-11-04T12:00:33+0000
Very impressed brilliant service and much improved performance on the car cheers
Sam Anderson
Sam Anderson
2014-11-03T20:56:46+0000
Michael Mannion
Michael Mannion
2014-10-30T05:13:46+0000
What a difference !!!!! better throttle response, more mpg and slightly more speed at the same revs as before the clean. Highly recommend.
Andy Armstrong
Andy Armstrong
2014-10-17T06:38:21+0000
Karll Osman
Karll Osman
2014-10-17T00:44:16+0000
Had this done a week ago then pulled a caravan can't believe the difference getting more miles to gallon now pulling caravan than before without caravan totally over the moon thank you Bernie well recommended
Amanda Sarsfield Brewer
Amanda Sarsfield Brewer
2014-10-07T19:10:31+0000
Friendly reliable service with excellent results, cars like new runs and performs like a new car. Well worth it
Jasen Parkinson
Jasen Parkinson
2014-10-03T08:27:42+0000
Just had the 118d done. Lovely guy easy to talk to, coffee white one. Excellent service thankyou big guy
Aran Mount
Aran Mount
2014-09-06T20:10:58+0000
Thanks bernie car is now more responsive and pulls great. , noticed the differance immediately
Gary Thomson
Gary Thomson
2014-09-06T19:34:15+0000
Well recommended had this done to my car last week noticed a difference straight away throttle response much better smoother quieter drive definitely be doing this again
Scott Calzaghe Murray
Scott Calzaghe Murray
2014-08-25T07:43:06+0000
Andrew Chapman
Andrew Chapman
2014-08-22T19:38:31+0000
Brilliant results on my 2.5 TDI V6 Passat. Loads quieter and responsive,goes through gears much better aswell
Paul Bage
Paul Bage
2014-08-02T18:19:50+0000
Callum Beswick
Callum Beswick
2014-07-19T20:51:06+0000
Defiantly worth every penny. Gained about 10mpgs plus performance. Also strange engine noises have disappeared.
Matt Simpson
Matt Simpson
2014-07-15T20:53:57+0000
Had loads of problems with my dpf on a movano 2.5 cdti. Spent a fortune,Got a 2nd opinion off Bernie, told me to get a dpf sensor (£35) then did a dpf wash. Amazing, no more lights on the dash or limp mode. The man knows his stuff, can't recommend him enough. Thanks Bernie, saved me a fortune, last place told me to replace my dpf for £1000!!!!
Tim Lunn
Tim Lunn
2014-07-02T21:54:13+0000
just done my TRANSIT 2 day im over the moon great job thanks
Decca Hetherington
Decca Hetherington
2014-06-11T16:56:27+0000
Had my 17 year old escort RS2000 done and she now runs like a dream, can feel the throttle response and it's a lot quieter, would definitely recommend
Paul Evans
Paul Evans
2014-05-30T07:49:07+0000
Lewis Sykes
Lewis Sykes
2014-03-18T07:32:44+0000
Steven Ohagan
Steven Ohagan
2014-03-12T20:45:04+0000
James Spensley
James Spensley
2014-03-08T03:57:02+0000
Darrell Bayliss
Darrell Bayliss
2014-02-17T15:28:14+0000
Seen this on wheeler dealer's will use to be sure
Jack Burns
Jack Burns
2014-01-17T14:05:23+0000
Saw you in action today, unbelievable result, will definitely be using you after Xmas
Rob Ryan
Rob Ryan
2013-12-01T18:23:10+0000
Paul Richard Cassidy
Paul Richard Cassidy
2013-11-27T10:10:47+0000
Very we'll worth the money seen improvement straight away will be using again : )
John Jonesy Mckeone
John Jonesy Mckeone
2013-11-17T16:38:11+0000
Steven Godard
Steven Godard
2013-11-12T12:50:41+0000
Robert Rambo Wright
Robert Rambo Wright
2013-10-28T20:56:26+0000
Ishtiaq Din
Ishtiaq Din
2013-10-28T18:34:13+0000
Martin Sutheran
Martin Sutheran
2013-10-19T17:59:36+0000
Alan Lineham
Alan Lineham
2013-10-19T17:10:28+0000
Tinkracing
Heath Porter
Heath Porter
2013-10-09T21:04:34+0000
Very very gooood !
Curtiss Stuartt
Curtiss Stuartt
2013-10-09T16:06:15+0000
Michelle Pound
Michelle Pound
2013-10-06T18:40:44+0000
Martin Price
Martin Price
2013-10-06T18:02:55+0000
Craig Cowie
Craig Cowie
2013-09-30T12:11:09+0000
Nick Dare
Nick Dare
2013-09-28T17:14:33+0000
Vinny Bryant
Vinny Bryant
2013-09-21T21:51:10+0000
Jordan Plummer
Jordan Plummer
2013-09-17T23:12:35+0000
Phillip Dowd
Phillip Dowd
2013-08-21T11:39:56+0000
Scott Testor
Scott Testor
2013-08-13T14:36:42+0000
Eddy Greenhalgh
Eddy Greenhalgh
2013-08-13T14:12:44+0000
Karl Taylor
Karl Taylor
2013-07-26T09:51:23+0000
Colin Hutcheson
Colin Hutcheson
2013-07-22T16:22:57+0000

Mobile DPF Cleaning & Diagnostics

DPF problems occur for many reasons, the DPF isn’t the problem it’s the victim.

There is a lot you need to consider when selecting services to address your DPF problem, the first step in the direction of failure is looking for the cheapest solution, in all cases Companies offering the cheapest solution are salespeople and not trained specialist troubleshooters, cleaning the DPF will not solve the problem because in most cases the DPF isn’t actually blocked and if they are blocked its a symptom of a problem, not a cause, they don’t block without a reason.

There isn’t a one size fits all solution to resolve problems with your DPF, the majority of our customers come to us after trying cheap solutions which in most cases are a temporary fix or simply do nothing because these are a sales product and don’t address the cause.

A warning light can come on for many reasons it doesn’t always mean that the filter is blocked, we are asked how much it is to clean a filter, in most cases this doesn’t solve the problem, we diagnose the problem before we decide what is required to resolve it, for this reason, we don’t offer a fixed price solution because we need to diagnose the cause.

DPF Cleaning is only temporary if the issues that have caused the problem are not found and resolved, there are many Companies offer a Cleaning service that don’t address the real issues these are often elusive and don’t leave any fault codes in the engine management, many Garages will offer DPF removal to eradicate the problem this is an illegal modification your vehicle will no longer meet its type approval and potentially void your insurance and also void any warranty.

  • 99.9% DPF cleaning success
  • DPF Diagnostics Specialist
  • DPF Deep Clean (Ash & Soot Clean)
  • Mobile DPF Unblock (Soot Clean)
  • Service Regeneration
  • Mobile service

Frequently Asked Questions:

Question. I’ve seen a DPF Deep clean advertised for £85 can you match the price?

Answer. There are many services and products on the market and many are misleadingly sold as a Deep Clean these are usually fluids which are introduced into the DPF to dissolve soot to reduce the back pressure in the hope the car will regenerate again afterwards these offer no real diagnostics as to why the DPF has become blocked in the first place and will not remove any ash from the filter, pour in the tank cleaners also offer no real cleaning but instead raise the exhaust gas temperature to try and achieve a regeneration which often doesn’t work and doesn’t address the cause of the problem,  our Deep Clean  removes soot and ash, we offer 2 types of cleaning which offer either to remove soot or a Deep clean which involves a lot more work than simply introducing a chemical into the filter,  we offer a different and more involved service thats addresses the root cause as well as cleaning a blocked DPF.


Question. I have had a Diagnostics and was told its the DPF how much is a Clean?

A clean is more often not the correct fix as many dpf’s that come to us as been diagnosed as blocked are not actually blocked, as most garages don’t know how to correctly diagnose them, also when they are blocked its due to another problem so we can’t do a fixed price solution, we need to assess the problem ourselves first, if we just clean your DPF without assessing the real problem it will likely not work.


Question. Why can I buy a Non-Genuine DPF so cheap?

The answer is quite simple Genuine filters are far better quality and can actually last the lifetime of the car with our help.

A genuine DPF filter has precious metals inside including Platinum which is used for Passive Regeneration which reduces ash build up and prolongs the life of the filter, Genuine ones often have a higher residual scrap value than a cheap will cost to buy.

We have attempted to fix DPF problems on cheap copies in the past and not been able to get them to function to specification, so will present a constant problem until a Genuine one is fitted.


Question. How much does it cost for DPF cleaning? 

Answer. The answer depends on the outcome of our assessment, we do 2 types of cleaning one will remove soot, the other will remove ash soot and oil, we only give an estimated range of costs beforehand as we don’t know what is required before our assessment, in many cases a clean isn’t actually required in which case the problem is often resolved for as little as £50


Question. My DPF light has come on can you fix this?

Answer. Yes we can, but before we look at your vehicle we ask if you have been doing short journeys and have you tried driving a longer journey preferably on a dual carriageway for about 30 mins keeping the engines revs above 2000 rpm or around 2500 rpm, if the light doesn’t go out then it would be a good idea to get us to check it as soon as possible, we can often find and fix a problem before the filter gets blocked.


Question. My DPF is blocked and I have been told I need a new DPF can you fix it ?

Ash Deposit on a DPF Temperature Sensor

Ash Deposit on a DPF Temperature Sensor

Answer. Yes we can, there is 3 main types of obstruction that a filter can fall victim to

1. Soot (particulate matter which is comprised of mostly Hydrocarbons that are normally burnt off during a regeneration)

2. Ash (Minerals & Metals seen in vehicles with higher miles this accumulates in a DPF after each regeneration) and reduces the ability to store soot between regenerations, this can’t be cleaned chemically, in this case the filter is removed and sent away to be cleaned at our head office in a specialist machine that won’t harm the filter then is refitted to the vehicle and reprogrammed.

3. Oil this will contaminate the filter and quickly reduce its ability to store soot and reduces the exhaust airflow quickly bringing on a DPF fault this can also be a sign of wear in the turbocharger.


Question. What is a Diesel Particulate filter?

A diesel particulate filter (DPF or FAP) is fitted to a diesel vehicle which filters particulate matter from exhaust gases. It traps solid particles while letting gases escape. Filters like this have been used for over 20 years, They reduce particulate emissions to help meet European emission standards and improve air quality


Question. What is Particulate Matter?

Particulate Matter is a mixture of solid and liquid particles, including carbon, organic chemicals, ammonium nitrates, sulphate, sodium chloride, dust, water and a several metals


Question. What is a DPF Regeneration

A DPF fills with particulate matter and needs to be cleared, This is achieved with regeneration, which is a process of oxidising the soot at high temperatures also leaves behind a small amount of ash.


DPF Removal (Delete)

Removal isn’t a legal solution and can result in fines up £1,000 for a car and £2,500 for a van, MOT cancelled and the vehicle can only be retested in a DVSA testing station with the DPF reinstated.

In 2014 it became illegal to use a car on the road that has had its DPF removed.

diesel-particulate-filters-guidance << Please read (external link to .gov.uk)

We diagnose the cause and clean the filter (if required) while still on the vehicle, then perform a test regeneration saving you money in a costly replacement.

A DPF on a higher mileage vehicle is likely to have a buildup of ash which reduces the capacity to accumulate soot, resulting in more frequent regenerations eventually leading to regeneration failure we can also remove ash this does require removal and sending to our head office, it’s impossible to dissolve or burn away ash without damaging the DPF.

Cost of our service varies according to the work required,
the typical price varies £50 – £300 (this isn’t just a price for cleaning because cleaning alone is only likely to remedy the situation for a short while, the cause also needs to be found and addressed, most faults that cause regeneration failure don’t show up on diagnostics equipment so require different methods of investigation)

Regeneration Failure

If Regeneration fails it will lead to a build-up of soot which will affect performance and can lead to expensive repair costs, many have opted for removal but this has both legal and has social implications as particle matter emitted from diesel engines is estimated to cause cancer and kill approximately 80,000 people per year.

DPF Problems things you should know

A DPF is often seen as the problem which is why so many garages fail to resolve DPF issues

A blocked DPF isn’t usually the problem it is the victim, there are many things that can cause the filter to block so cleaning is often not the solution but just part of the fixing process.

We use 2 completely different systems to clean a filter depending on the type of accumulation inside.

Soot accumulation is the most common we have to deal with, this happens due to failed regenerations we can clear this with our mobile cleaning service.

Ash accumulation which is a normal slow accumulation inside a DPF, ash slowly reduces the DPF’s capacity to accumulate soot in between regenerations, the rate at which the ash builds up varies between cars, which is why manufactures give an expected life span of 80-100,000 miles, this can be cleaned in a specialist DPF cleaning equipment but does involve removing the DPF from the car but will give the DPF a new lease of life saving on expensive replacement, ash builds at different rates depending on how the vehicle is used, for instance on long journeys it will passively regenerate which produces less ash, with short journeys it will actively regenerate which increases ash build up, using the proper specified oil in servicing is also important as vehicles with a DPF require a low saps oil.

The Law And Mot Test

From February 2014 the inspection of the exhaust system carried out during the MoT test includes a check for the presence of a DPF, in 2018 the MOT is changing the smoke test limits are being reduced this will lead to many more failures and expensive rectification.

www.mobile-dpf-cleaning.co.uk