Will AdBlue Delete Make Your Car Fail Its MOT?

All modern diesel vehicles have AdBlue systems to reduce the environmental impact of their exhaust gases. While this has some benefits, it also causes a lot of issues and many vehicle owners are turning to AdBlue delete as a solution.

This means more and more people are now concerned that AdBlue delete will cause their cars to fail their MOTs.

5 out of 5 stars

“Very professional and knowledgeable company. They remapped my Mercedes and the car now drives so good. Second car they’ve remapped for me. Will definitely use them again for any other cars in the future.”

Will Your Vehicle Fail Its MOT Test?

Technically, AdBlue delete makes your diesel car illegal to drive on public roads in the UK. Consequently, if this is noticed, your car will fail its MOT.

However, the mechanics who perform MOTs have no way of testing your vehicle to see if its AdBlue system has been disabled. They will inspect the components of your car’s Selective Catalytic Reduction (SCR) system, like the AdBlue tank, AdBlue injector, and NOx sensors, to see if they’re in working order.

Currently, MOT technicians do not check the car’s computer (ECU) to inspect whether anything is wrong, for example, whether the SCR system has been disabled.

AdBlue Delete Alternatives

If you’re still worried about your car failing its MOT, there are alternative AdBlue solutions. However, these options come with many risks, are very expensive, and don’t fix the cause of AdBlue faults.

1. Main Dealer

If your car is experiencing AdBlue-related issues, you could take it to your dealer or a local garage. They won’t perform an AdBlue delete but will carry out expensive AdBlue repairs instead.

Typically, this costs between £3,000 and £5,000 as you have to pay for replacement parts, labour, and any other expenses.

Besides being expensive, this approach also isn’t effective. It may resolve any AdBlue issues for a while, but they’re almost guaranteed to return.

This is because the AdBlue system will still be running, leading to problems like constantly flashing dashboard lights, issues with your vehicle’s performance, and increased AdBlue consumption.

Therefore, you’ll almost certainly have to pay out for more repairs in the future.

2. AdBlue Cleaner

Some mechanics recommend using AdBlue cleaner to fix common issues like crystallisation. Unfortunately, this won’t fix the problem.

AdBlue cleaner is effective at preventing issues from occurring, but it’s useless once the problems have already begun.

So, this shouldn’t be seen as a viable alternative to AdBlue delete.

3. Use Our Reliable AdBlue Delete Service

If you’re looking for an AdBlue delete service that permanently disables your AdBlue system with a guarantee that the issue won’t return, go ahead and book one of our technicians to resolve the issue permanently.

Our AdBlue removal service is much more affordable than any of the above alternatives, costing just £500.

Plus, unlike inexperienced technicians, we backup your ECU’s original settings so that we can return your car to its original condition if you choose so at later stage.