Seeing an AdBlue warning, a "no start in X miles" countdown, or your van dropping into limp mode? Do not panic, and do not keep clearing the warning, because that rarely stops the countdown. Auto-Cleanse diagnose and repair AdBlue and SCR system faults properly. Garage or mobile across Devon.
Call for same-day help, or request a quote below.
AdBlue faults almost always announce themselves before they strand you. The common warning signs:
If you are already in a countdown, act early. It almost always ends in the vehicle refusing to start, usually at the worst possible moment.
Common fault codes we see: P20EE, P204F, P207F, P20E8, P229F and P203F - SCR efficiency, dosing, NOx sensor and reductant faults.
The system fails in a handful of predictable ways. We diagnose the actual cause rather than guessing, then fix it:
AdBlue and SCR faults are routinely misdiagnosed, and the most common culprit, a NOx sensor, is easy to get wrong. Throwing parts at the problem is expensive and often does not fix it.
We read the system properly, pinpoint the actual fault, and only then quote. After the repair we run the correct drive cycle so the fault is genuinely cleared and confirmed, not simply reset to reappear days later. It is the same evidence-based approach we bring to DPF fault diagnostics.
Two ways to get sorted: bring it to us at our Totnes workshop, or we come to you with mobile AdBlue diagnostics and repair across Devon - ideal if the van is already in a no-start.
We are based at The Old Barn Industrial Estate, Webbers Yard, Totnes. For mobile visits, tell us your location when you call and we will confirm availability and timing.
Call us
Tell us your vehicle, the warning message and any fault codes. We will tell you the likely cause and next step.
Diagnosis
We read the SCR system properly and pinpoint the actual fault, rather than guessing.
Quote
Clear, fixed pricing before any work starts.
Repair
Carried out at our workshop or at your location.
Confirmation
We run the correct drive cycle so the fault is genuinely cleared, not just reset.
Vans and commercial diesels are our bread and butter - Ford Transit and Custom, Mercedes Sprinter and Vito, VW Crafter and Transporter, Vauxhall Vivaro, Peugeot Boxer, Citroen Relay, Renault and Nissan - plus Euro 6 diesel cars. If it runs AdBlue, we can almost certainly help.
Many of these are the same vehicles we remap and clean DPFs for, so the diagnostics carry across.
Genuine feedback on our diagnostic work, including a customer whose limp mode turned out to be a faulty sensor rather than a costly repair.
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.
Auto Cleanse removed, cleaned and replaced my dpf effectively and promptly, all in all a trouble free service. Communication was excellent and I'm no longer scared of my DPF. I'd recommend this company.
Just wanted to say thanks again for the super quick response and turnaround for DPF Cleaning, picked up and dropped off within two hours. Can't fault the service and advice from Alex at Auto Cleanse, we will definitely be using your services in the future. Would 100% recommend Auto Cleanse to anyone.
Act now rather than waiting. The countdown almost always ends in the vehicle refusing to start. Call us with the message and any fault codes and we will get you booked in, garage or mobile.
Usually yes, for a short while, but it is a countdown, not a suggestion. Once it reaches zero many vehicles will not restart until the fault is fixed. Do not ignore it.
Yes. A correct repair restores the system to how it was designed to work, which is exactly what keeps you MOT-compliant and road-legal.
It depends on the fault - a NOx sensor is very different to a dosing pump. We diagnose first and give you a fixed quote before any work starts. Call us with your fault codes for a free initial assessment over the phone.
Yes. We cover Devon with both garage and mobile service, which is handy when the vehicle is already in a no-start. Tell us your location when you call and we will confirm availability.
No. Disabling the AdBlue system is illegal on any vehicle used on UK roads, fails the MOT and can void your insurance. That is why we repair the fault properly instead.
Most common faults are a same-day or next-day job once diagnosed. We will tell you up front when you call.
AdBlueA Mercedes Sprinter showing 'starting prevented in X miles' almost always points at the AdBlue system. Here is what P204F means and how the fault is repaired.
Read more →We'll diagnose and repair your AdBlue fault properly, before it leaves you stuck.
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