Adblue Fault Repair in Luton


Did you know that we can offer Adblue software solutions? so if your Adblue warning light is on and you are experiencing Adblue issues, we can help.

What is AdBlue?

AdBlue is simply a brand name for Diesel Exhaust Fluid (DEF) and is not a fuel additive but a non-toxic exhaust fluid made up of de-ionised water and urea. Contrary to popular belief, urea is not made from pig urine (although urea is a chemical found in pigs’ urine)

Most diesel cars built after 2015 (Euro6 Diesels) are equipped with a Selective Catalytic Reduction (SCR) system and use AdBlue.

How Does AdBlue Work?

Small amounts of AdBlue is injected into your car’s exhaust system, transforming the AdBlue into ammonia and carbon dioxide at a very high temperature.

Once inside the SCR (Selective Catalytic Reduction) catalyst, the harmful nitrogen oxide (NOx) in your exhaust reacts with the ammonia and is converted into harmless nitrogen and water that comes out of the exhaust pipe and disperses into the atmosphere.

What happens if your car runs out of AdBlue?

A warning will appear on your dashboard to advise you that your AdBlue fluid is running low. An amber warning light will then follow when the tank is almost empty.

If your AdBlue runs out while you are driving, your engine will go into ‘Limp Mode’ and your engine’s performance and power will be reduced in order to limit the emissions produced.

Once you turn off your engine or your engine stops, your engine will not start until you refill the AdBlue tank.

AdBlue Storage

Do not store your Adblue in direct sunlight. AdBlue should be stored between 0 and 30°C, and should be properly sealed when it’s not being used. AdBlue can freeze at -11°C, however, once thawed it will return to its original liquid state.


If you have any AdBlue issues and need further, expert advice, contact us on Luton 01582 968995.


Get in touch

Get in touch with our fully qualified technicians with over 25 years of experience in car servicing and engine diagnostics.

Kam MaheyKam Mahey
17:51 28 Feb 24
What can I say, will definitely be getting my cars serviced regularly from here. Very friendly receptionist, dealt with a top guy who was very informative & helpful. Car now running even more smoother than the day I purchased it from a Volvo dealership. Thank you so much!
11:31 22 Jan 24
Brought my Mercedes Sprinter truck into Wayne for my wheel alignment- very impressed!Truck drives mint; actually like new- doesn’t pull or follow the ruts on the road anymore and the price was very reasonable.Thanks guys.
Ryan Wells-PorterRyan Wells-Porter
22:25 20 Jan 24
So I had my car in with Wayne around 3 months ago now... its taken me this long to write a review because ive been too busy enjoying the new life in my V40!After reading a few horror reviews on the V40 forum (not about WV Autos) and how unfriendly Volvos have been to work on in the past for other garages, Wayne and Trish set my mind at ease! More than happy to answer any and all questions I had and were recommended to me by several people who have used them in the past.My 2013 Volvo V40 D4 had issues with the DPF, blocked beyond regeneration, was in limp mode for around 3 weeks and started misfiring if I dared go up a hill! Not ideal when you live on a hill and need to get to and from work.Wayne worked his magic on the DPF, EGR and done a remap. I can honestly say its like driving a brand new car! She's never been so responsive in the 8 years ive had the car, absolutely no hiccups AND just passed my MOT with no issues with emmisions which was a big concern of mine.Cant thank the team at WV Autos enough for their amazing work and quick turnaround. Anyone that asks no I tell them exactly where to head for top quality service!
08:54 13 Jan 24
Had an engine light come up. My issue was sorted and also had a Stage 1 remap. Car feels much nicer to drive and less sluggish. Highly recommend, great friendly people.
Taylor TappinTaylor Tappin
16:31 12 Dec 23
Fabio DouradoFabio Dourado
18:27 22 Nov 23
From the moment I stepped in, this garage is definitely the place that I'm going to be trusting my car to go to ,Wayne was straightfoward with all the issues my car had , took my BMW E88 118d in, had my dpf rectified , Turbo Booster hose replaced and Serviced , stress free since then.What else can I say? Huge Thank you to this professional ,trustworthy and helpful garage that I'm glad I decided to put my foot in!
Male TravellerMale Traveller
16:45 20 Oct 23
Did the work on my car really quickly to make my visit a short one as they knew I was not from the local area. Fantastic customer service with top quality work done on my car. Highly recommended.