A typical AdBlue® system consists of several components

  • AdBlue Tank: This is where the AdBlue fluid is stored in the vehicle.
  • AdBlue Filler Cap: A dedicated filler cap for adding AdBlue to the tank.
  • AdBlue Pump: A pump is used to transfer AdBlue from the tank to the dosing module.
  • Dosing Module: This component precisely injects the correct amount of AdBlue into the exhaust system to react with harmful emissions.
  • AdBlue Injector: The injector sprays AdBlue into the exhaust stream to facilitate the selective catalytic reduction (SCR) process.
  • SCR Catalyst: A catalyst that helps in reducing harmful nitrogen oxide (NOx) emissions by reacting with AdBlue.
  • AdBlue Sensors: These sensors monitor the AdBlue level, quality, and other parameters to ensure proper system operation.
  • AdBlue Lines and Hoses: Various hoses and lines connect the components and allow the flow of AdBlue.
  • Control Unit: A control unit or Electronic Control Module (ECM) manages the AdBlue system's operation and communication with the vehicle's engine control unit.

These are the primary components of a typical AdBlue system in a vehicle, and they work together to reduce harmful emissions and comply with emissions standards.

When a vehicle with AdBlue ® displays an engine warning light and or a mileage countdown to non start state the first thing to check is that there is enough AdBlue in the tank.

Once you have topped up if required and you still have the countdown and engine light it is important to immediately have it dealt with, as the countdown can be erratic and catch you out unexpectedly.

For example, we have calls from people with 700 mile to non-start countdown who put off the inevitable, the countdown can randomly drop overnight and or in between ignition cycles leaving owners with a non-starting vehicle.

The challenge of diagnosing an AdBlue issue is that a diagnostic tool however good can indicate a component fault that turns out to be a phantom fault.

What do we mean about phantom faults?
Simply put the diagnostic tool isn’t the silver bullet or magical solution most people think it is, and simply resetting the fault codes is no more than a very short-term reprieve.

When an AdBlue system fails, it can often lead to long wait times (for even an inspection by your main dealer) and then an expensive parts replacement process until the correct faulty part is identified and replaced.

Meanwhile, you can be left without your essential daily vehicle, we can help in this event.

Contact us for more information here https://www.mpgtuning.co.uk/contact/

IMI Certified Tuning Specialist

MPG Tuning Ltd
Unit 44 Rumerhill Business Estate
Cannock, Staffordshire, WS11 0ET


 Tel: 01543 466662


MPG Tuning Offer Professional ECU Remap and Tuning services including but not limited to ECU Remapping, EGR Delete, DPF Solutions, VAG Emissions Recall Scandal Rollback, Tricore Processor Programming, Boot Mode, and Traditional Chip Tuning.

MPG Tuning is based in Cannock Staffordshire but serves customers from further afield typically from the following areas, Lichfield, Burntwood, Rugeley, Stafford, Brownhills, Walsall, Wolverhampton, Birmingham, Tamworth plus many more areas throughout the West and East Midlands. 

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Choosing a Good Tuner is as important as choosing a Good Doctor.

You will be presented with a bewildering selection of companies, all claiming to be the best in the industry. Unfortunately the industry has been flooded with “Get Rich Quick” merchants all desperate to take your money from you. In many cases the “Get Rich Quick” operators have invested in “Cloned” counterfeit remapping tools off the internet. They have little “if any” industry knowledge, experience or liability insurance…

Don’t get sucked in by a good story and what appears to be an incredible price. Instead of taking the word of self-acclaimed tuning experts, a search on google will reveal some very interesting, yet disturbing facts about a few “so called” professionals. Unlike some testimonials “Bert for Bognor says we are Brill” our customers are real people. Don’t take our word for it, ask the people that know best “Our Customers”

I went for a remap on my T5 as it had an awful flat spot around 2800 rev's I got great personal service and its like having a new engine in the van smooth power and greater economy.... Highly recommended wish I'd done it months ago it would have paid for it self already thanks a lot hills are no longer a drag.

Adrian McManus

Popped in to see Mike on Friday to have my A4 2.0TDi 170hp remapped. Have to say I was a little pessimistic at first having being told by another firm that remaps on these were a nightmare so was expecting the worst! Thankfully, nothing of the sort, straight in, one error message unknown but Mike worked it out and all done in no time. Straight out for a test run and the drive is very different, certainly mid ranged (where these engines seem to suffer) pulls away nicely and can definitely feel the benefit. Best money I've ever spent on a car in, well, forever! Thanks again Mike

Mark Patterson

Had the ECU my 320D remapped by Mike yesterday. Very impressed with the results. Noticed it straight away after having it done. Service was also great, talked me through all of it to get exactly what I wanted out of it. Highly recommend mpg tuning.

James Aston

Took my Civic Mk VIII 2.2 CDTI to Mike following a recommendation from a friend who's had his last few cars remapped at MPG., professional service and answered any questions I had. Customised remap that gave me a good balance between performance and economy. Mike was happy to let me watch the whole procedure and explained what he was doing. Makes a good brew as well! Would highly recommend, Will definitely bring my future motors here.

Dan Wright

Just had the ECU on my BMW 320D remapped and it is absolutely superb the power is unbelievable and the service is outstanding would recommend it to anybody he has transformed my car from 160 bhp to 207 bhp no smoke at all and the power delivery is awesome throughout all of the gears really happy.

Tom Dawson

Had my Astra 1.9cdti remapped here with EGR delete for a great price, I have now got the full power and yes it's rapid lol.... Mike was helpful and talked me through it all and also good after care as well. Thanks again.

Scott Walker

Had my T5 remapped today. Over the moon with the results! Really reasonable price and customer service is second to none! Would highly recommend!

Ethan Tunnicliffe

I had my car remap done and I'm really pleased with MPG Tuning. Great atmosphere, great service and I will recommend it to all my friends. Thank you once again. Renault Megane 2.0 Turbo petrol with 165 hp standard

David Wojtasik

Took my Astra estate for a ecu remap, excellent job feels a lot more responsive!

Umair Khalid

Mike remapped my car. Perfect professional service from start to the end. For less than 2 hours everything was done. If you want a different feeling when you are driving MPG Tuning is your place to go.

Dimitar Dimitrov

My boyfriend has exactly the same car as me 1.5 diesel fiesta, had his remapped and was over the moon with it. I had never thought of having a car remap but after driving his, mine felt heavy and slow so decided to get mine done too, now I am converted I love it even more and I am getting about 80-90 miles per tank better than before, very happy , great friendly service and awesome cuppa while we waited

Kelly Williams

Had my renault van remapped at mpg tuning, awesome power, can now keep up with pigeons, thanks Mike for an excellent job 👍👍



Our lead technician has over 16 years’ experience in the tuning industry and long term connections with some of the Worlds most experienced data programming and tuning specialists. We are extremely passionate about our customer satisfaction and strive for a perfect result every time.

Contact MPG Tuning today to discuss options for a professional ECU remap or Call Us: 01543 466 662