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Read more →How we quote AdBlue repairs and remaps
We quote your actual job, not a figure from a price list. Send us your reg and the dash warning, and we'll tell you what it's likely to be, who would attend and what happens next. The repair price is agreed before any repair, and nothing is done without your OK.
Have your reg, the exact dash message and any fault codes to hand. We'll tell you on the call what it's likely to be and what happens next.
The short answer
- Why there's no price list
- The same warning can be a sensor or the catalyst. Those are very different jobs, so we price yours.
- What to have ready
- Your reg, the dash message or a photo of it, any fault codes, miles left on any countdown, and your postcode.
- Who attends
- Our own technician in Devon. Elsewhere, a vetted independent technician near you where we have one. We'll tell you on the call.
- Who you deal with
- Us, throughout. We take the payment and handle anything that isn't right afterwards.
Why we don't publish AdBlue repair prices
A warning on the dash tells you the system has a problem, not which part has failed.
Take fault code P20EE, which SAE J2012 defines as SCR NOx catalyst efficiency below threshold (bank 1). The cause can be a NOx sensor giving false readings, poor or contaminated AdBlue, a dosing fault, an exhaust leak ahead of the catalyst, or a catalyst that really has worn out.
A sensor and a catalyst are very different bills, so any single published figure would be wrong for most people. We quote your confirmed fault instead. Our P20EE guide shows how each of those causes is ruled in or out.
We only quote to repair. We don't quote for deletes or emulators, which fail the MOT when found and can be an offence, or for clearing a countdown without fixing the fault, which just brings the warning back.
What we ask when you call
Each question is there for a reason. If you can't answer one, call anyway and we'll work with what you have.
- Your reg. It tells us the model and engine, which narrows down the parts that fit.
- The exact dash message, or a photo of it. Makes word these warnings differently, and the wording often shows whether it's the AdBlue level, the fluid quality or a system fault.
- Any fault codes, exactly as shown, and all of them rather than just the first. Generic codes from a basic reader still help.
- Miles left on any countdown. On many vehicles the engine won't restart once it reaches zero, though makers differ, so this tells us how urgent it is.
- Your postcode and where the vehicle is parked. This decides who can attend and whether they can work on it there.
- Business or private, and how many vehicles you run. It sets how we quote, and if other vehicles show the same warning we can quote them together.
- What's already been done: recent parts, a recent top-up, or anything removed or disabled in the past.
What happens after the call
This is the order things happen in.
- 1
We tell you who would attend
In Devon, that's our own technician. Outside Devon, we book a vetted independent technician near you where we have one. If we can't get someone to you, we say so on the call.
- 2
You know first if a diagnostic visit is needed
If we need to see the vehicle to find the fault, you'll know that before anyone sets off, along with any charge for the visit.
- 3
The repair price is agreed before the repair
Once the fault is confirmed, we give you the price for the repair. Nothing is repaired until you've agreed it.
- 4
Nothing extra without your OK
If the technician finds something else once work starts, they stop and we call you. Nothing more is done until you've agreed the new price.
You deal with us from start to finish
Even when an independent technician attends, your booking and your payment are with Auto-Cleanse. If something isn't right afterwards, call us, not the technician, and we'll deal with it.
The terms for your job, including any warranty and when payment is due, are confirmed with your quote. Private customers also have rights under the Consumer Rights Act 2015: a repair must be carried out with reasonable care and skill, and if it isn't, you can ask for it to be put right at no extra cost.
If the vehicle belongs to a business, give us the business name when you call so the quote and invoice are made out correctly.
Remapping quotes
For a remap, the price depends on the engine, the ECU and how it has to be read, and what you want from the vehicle. Tell us the reg, any existing modifications and what you use it for, such as towing or heavy loads.
We check a vehicle is healthy before remapping it. If it has an AdBlue, DPF or EGR fault, we'll quote to repair that first, because a remap doesn't fix an emissions fault.
What affects the cost
- Which part has failed: a sensor, the pump or injector, a heater, the tank, the wiring or the catalyst
- Whether a diagnostic visit is needed first
- How parts are supplied: on some makes a part only comes as a larger assembly
- Whether the new part needs coding with diagnostic software, which varies by make
- How much has to come off the vehicle to reach the part
We don't put AdBlue repair prices online because the same warning can mean very different repairs. Call with your reg and the warning message and we'll quote for your vehicle.
What customers say
Genuine Google feedback on our AdBlue, SCR and diagnostic work.
Google Review
Very impressed with the professional service offered. They diagnosed and sorted the adblue issues on my car, explained the process well and I believe the price was very reasonable. I would highly recommend them.
SD
sara dixon
AdBlue
Google Review
I took my VW Golf diesel to AutoClean after it went into limp mode with a flashing glow-plug light and suspected DPF blockage. Tom carried out proper diagnostics and confirmed the DPF itself was healthy. Instead of replacing parts unnecessarily, they identified a faulty DPF differential pressure sensor as the root cause. The issue was explained clearly, the costs were transparent, and the repair was completed promptly. Limp mode resolved immediately and no further work was pushed. I appreciated that they didn't default to a costly DPF removal when it wasn't needed. Good diagnostics, straightforward communication, and a proportionate fix. Would recommend if you're dealing with DPF or emissions-related issues.
MA
Martin Amis
DPF Diagnostics
Google Review
Very professional and incredibly helpful services from Tom at Auto-Cleanse, walked me through the findings on the diagnostic tool and thankfully didn't need a DPF clean! Excellent piece of mind and whilst I hope I don't need their services again (!) I will be recommending them to everyone!
CW
Callum Woodman
DPF Diagnostics
Frequently Asked Questions
Because the same warning can be a sensor, a dosing fault or the catalyst, and those are very different jobs. We'd rather quote your actual fault.
Usually, yes. From your reg, the dash message and any codes, we can tell you what it's likely to be and what the next step is. The repair price is agreed once the fault is confirmed.
Yes. Your reg and a photo of the dash message are enough to start. If the codes need reading, that becomes part of the diagnosis.
In Devon, our own technician. Outside Devon, we book a vetted independent technician near you where we have one. Call and we'll tell you straight away whether we can get someone to you.
You pay Auto-Cleanse. You deal with us throughout, and if anything isn't right afterwards, you call us.
Yes. Give us the business name when you call and the quote and invoice are made out to it. If several of your vehicles need work, mention them all on the same call.
We confirm the terms for your job with your quote, before you agree to anything. Private customers also have rights under the Consumer Rights Act 2015.
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Ring with your reg and the warning message. We'll tell you what it's likely to be, who'd come out and what happens next.
Sources
- SAE International - J2012 diagnostic trouble code definitions
- UK legislation - Commission Regulation (EU) 2017/1151, Annex XVI: reagent warning and driver inducement
- UK legislation - Consumer Rights Act 2015, sections 49 and 55 (services)
- UK legislation - Road Vehicles (Construction and Use) Regulations 1986, regulation 61A
- DVSA - MOT inspection manual for cars and passenger vehicles, section 8.2.2
Last reviewed 13 October 2026.