Well so far as I stated my sum is £2135.92. Should I book the car into Mercedes first and ask them to reprogram the Ad-Blue and then pay the costs upfront? Sorry, that is just the sum of Mercedes. The actual sum including tyres etc is £2962.67 and all receipts can be provided.

https://www.avontuning.co.uk/services/advanced-options/adblue-removal Read this advertisement for Ad-Blue removal, particularly the last paragraph. Our AdBlue delete service is strictly sold as an off-road use only product, driving your vehicle on the road with an AdBlue delete could result in prosecution. Our HGV and Agricultural AdBlue service is to be used only for vehicles which are to be exported outside of the European Union. It is your responsibility to declare your modification to the relevant authorities.

The company sold me a car without a SCR/ADBlue system programmed on it. That in itself is evidence that it has been tampered with. My Husband and Father were told that they had replaced an ADBlue sensor (not a unit). There would be no reason to replace an AdBlue sensor if the SCR system was not on the car. They lied about what they had done. Unfortunately we do not have in writing what they used or did in order to get the engine management light to turn off. Just their word. I have been informed by another mechanic that the computer systems used by mechanics store all data and this cannot be removed. I don't know enough about this but I will look into it, as if this is the case then the removal of the SCR software/deprogramming will be stored on their computer systems. I want to keep the vehicle, I have paid £2135.92 so far to get it road worthy. I also have to pay for the ADBlue/scr system programmed back in, this is initially £168 just for Mercedes to look at it. They will obviously encounter some faults once it is programmed in. If this is one or more NOx sensors they are £500 each. My car is in a good condition and drives well, however, I am potentially releasing harmful emissions, and although this doesn't bother the vehicle, it bothers the environment and my car could potentially fail its MOT if not programmed back in. I want MotorHub to pay for this also. I would have not bought the car if I knew that it didn't use adblue as the SCR system was programmed out. So no, I wouldn't buy the car in its current state. I am aware of the reviews and the behaviour of this garage. They have wrote and offered to look into the SCR system for me and explained that I can phone them and take it back in to them for them to sort this out. I wouldn't trust them with a toy car, plus I can't be without a car. As I previously stated, I work for the NHS and I need my car for work.

No this happened on the day of purchase. My husband and dad rightfully wouldn't pay for the car with the engine management light on. They were told that a sensor (the AdBlue sensor) had been replaced. Not the injector unit. I haven’t mentioned an injector unit. The second part is correct. They programmed the system out of the car so the issue was ignored. It is not merely an interference, it has to be manually programmed out of the car. The SCR control unit has been disconnected. Mercedes could see this. This would trigger a warning light, since there is no warning light the system must have been reprogrammed/coded out of the car. If the SCR system is removed the car will not use AdBlue which will affect emissions.

No. The SCR/Ad blue system is a system which controls harmful emissions. This is a legal requirement on diesel cars. The engine management light was on. Motorhub claimed they knew why, they said it was an AdBlue sensor. This sensor fault would only be visible if the SCR/AdBlue system was still programmed in on the car. They lied and said they had replaced the sensor when in fact they programmed the whole system out of the car so no engine management lights or sensor issues would show up. Now my car could potentially fails it’s MoT as the car could be releasing harmful emissions. AdBlue sensors are relatively cheap. The only reason myself and Mercedes can think of is that the engine management light issue was not an AdBlue sensor issue, but a NOx sensor issue. NOx sensors are around £500 each. All these sensors are part of the SCR/AdBlue system. Instead of replacing an expensive sensor (or more) they programmed the SCR system out of the car so no issues were shown!

The sensor that we was told was replaced was an Ad-Blue sensor. This wasn’t replaced (they lied to my husband and dad) as the company simply de-programmed the SCR/Ad-Blue system out of the car in order for the engine management light to go off. The engine management was obviously more of an issue than an Ad-Blue sensor, probably a NOx sensor (which are £500 each). If the SCR system was already programmed out at this stage then it would be impossible for the engine management light to be an Ad-Blue sensor issue. The Ad-blue sensor is not the Ad-Blue /SCR system. Basically they told them it was an AdBlue sensor and said they had replaced it. They hadn’t...... instead they went for a cheaper option and deprogrammed the SCR/Ad-Blue system out of the car, but lied and said they had replaced the AdBlue sensor.

They didn’t say they had replaced the unit. The engine management light was on when my husband and dad went to pick up the car. motorhub told them that they knew it was an ad-blue sensor and that they had one in stock. My husband and dad waited for over 2 hours for this sensor replaced. The garage then told them both that the sensor had been replaced and it was all fine. The engine management light had gone off, so my husband presumed they were telling the truth, didn’t see why they would have a reason to lie. We would never had know that the SCR/Ad-blue system had been programmed out unless Mercedes told us. Thus was probably a cheaper option than replacing an expensive NOx sensor, but I won’t know if that is the issue until the SCR system is programmed back in.

Ok thanks. I was under the impression that it was illegal to sell a car with the Ad-Blue system disabled? In which case they were breaking the law selling it to me in this state.

Mark at Mercedes sent the following in an email: I hope you are well. These are our findings when your car came into Mercedes Benz Doncaster on 12th February 2021… We did not carry out direct investigation into the SCR system, we advised that we had noticed the SCR unit was disconnected and you said you would come back to us after speaking to the selling dealer. We discovered the SCR control unit was disconnected whilst investigating the issue with the boot of your car. This being disconnected would trigger a warning light to appear on the dash. As there was no warning light present we suspect that the system has been reprogrammed/coded out of the car. Due to the SCR system being removed this means that the car will not be using AdBlue which will affect the emissions output. With regards to remedying the issue, we are unsure of how it has been removed from the car therefore it would need to be a step-by-step process attempting different methods to bring the car back to standard. Unfortunately there is no record of dates stored within any control units that would state when this was coded out with. I hope this helps. Kind Regards Mark Emmerson Senior Service Team Manager Mercedes Benz of Doncaster 01302 554600

I will email Mark now to ask for a more detailed and more formal statement.

All I have is that Mercedes have told me in their email that they have noticed the Ad-Blue/SCR system has been programmed out of the car. When speaking to a family mechanic about this he informed me that this record would be stored on the dealers computers. The email from Mercedes is below: As per our telephone conversation yesterday please find your invoice attached. This explains work carried out to your car and items that were identified. We also discussed that we found that the AdBlue system (SCR) has been programmed out of the car and the ECU has been disconnected. This has likely been programmed out due to a faulty part on the SCR system. We could potentially look in to rectifying this issue for you but the costs are unknown due to not knowing how this has been programmed it out. The issue is trying to trace how this has been programmed out and reversing. There is no guarantee we can fully repair this and put back to standard as it will likely be trial and error. If you would like this repair attempting we would start at a cost of £168, for this we will re-connect the ECU and carry out a software update to re-program the engine ECU, then see what happens from there. I had no choice but to take my car to a dealership as I needed a courtesy car to get to my job in the NHS. MotorHub do not offer a courtesy car. The warranty on the vehicle from motorHub was only covered for £250 too. Kind Regards Mark Emmerson Senior Service Team Manager Mercedes Benz of Doncaster

19th January - No liquid from windscreen wipers, full of air, not covered on the warranty. Only cost £15 at a local garage. 22nd January - £432 for new back tyres 1st February - £372 for new front tyres, looked like tracking was out and the tyres had been put on the wheels the opposite way around to look like they weren't worn, my husband didn't notice this. 24/02/2021 £2135.92 from Mercedes, PDF attached for this. PDF attached. Email from Mercedes below: As per our telephone conversation yesterday please find your invoice attached. This explains work carried out to your car and items that were identified. We also discussed that we found that the AdBlue system (SCR) has been programmed out of the car and the ECU has been disconnected. This has likely been programmed out due to a faulty part on the SCR system. We could potentially look in to rectifying this issue for you but the costs are unknown due to not knowing how this has been programmed it out. The issue is trying to trace how this has been programmed out and reversing. There is no guarantee we can fully repair this and put back to standard as it will likely be trial and error. If you would like this repair attempting we would start at a cost of £168, for this we will re-connect the ECU and carry out a software update to re-program the engine ECU, then see what happens from there. Kind Regards FA14 NGE.pdf

I need help and am considering a no win no fee solicitor. My husband bought me a surprise car. paid almost £22,000 for it. only looked on auto trader reviews and not on trust pilot etc, which was a mistake and he is gutted about. bought it on the 13th January 2021 and I have had to spend almost £3k to get it roadworthy. When my husband went to pick the car up he queried engine management light, they told him it was an Ad-Blue sensor. He and my father waited around 2 hours for the Ad-Blue sensor to be replaced. They brought the car back to them and told them that this had been replaced. It hadn't been replaced and unbeknown to them, MotorHub had programmed the Ad-Blue/SCR system out of the car. I have a full written report from Mercedes explaining this, and they said it was probably a NOx sensor which are around £500 each. instead of them replacing this, they simply programmed the system out of the car, so now my car could potentially fail its MOT. Faults in order: Purchased car 13th January 2021 19th January - No liquid from windscreen wipers, full of air, not covered on the warranty. Only cost £15 at a local garage. 22nd January - £432 for new back tyres 1st February - £372 for new front tyres, looked like tracking was out and the tyres had been put on the wheels the opposite way around to look like they weren't worn, my husband didn't notice this. I then got stuck whilst out. All of the sensors were erroring, the car wouldn't start. The brakes wouldn't work and the car was stating that the boot was open when it wasn't. Finally managed to get it started after sitting around for over 2 hours. Drove it straight to the local Mercedes dealership. Cost me £2135.92. I have a written statement from them to say that it looked like the car had been in a minor bump, the bumper was misaligned and was leaking in water through the lights. This had been happening for some time as all of the sensors were corroded and it needed new wiring looms, this would have been happening over a longer period than I had owned the car. Whilst the car was at the Mercedes garage they noticed the Ad-Blue/SCR system and reported this to me. Again, I have a written statement from Mercedes. I have written 3 letters to the dealership, and my final letter asked them to consider ADR and if not I would be starting court action. They initially asked me to take the car to them for repair, I had already taken it to Mercedes as I simply couldn't trust them. They responded after my 2nd letter stating that they would give me a full refund minus 45p per mile. I refused this as I had spent £3k on the car and I actually like it now it works and want to keep it. Their 3rd reply stated that they will not pay for the repairs that Mercedes carried out as they offered to look at it for me and they want me to arrange to get the car back to them so they can look into the Ad-Blue/SCR system issue. Quite frankly they have lied to me about the car being in a bump, mis-sold me it in a bodged way, and lied about the SCR system, I wouldn't take a toy car to them for repair. Mercedes want an initial £168 to look at the Ad-Blue system, and then the cost of what is wrong with it after they have programmed it back in. Mercedes also explained that they would like details from Motorhub on how they de-programmed the SCR system as they would need to do this in reverse. Motorhub have failed to answer me this after 2 letters and 2 emails. This ADbLUE system is a legal requirement in all diesel cars to lower NOx emissions. The permissible level of pollutants that new cars can emit has been reduced significantly in the past couple of years. The introduction of the latest Euro 6 standards demanded a 67% drop in nitrogen oxides (NOx) in the exhaust emissions of diesel cars. The way of meeting these standards for my car is that it is fitted with a selective catalytic reduction (SCR) system. This has been disabled by MotorHub on my vehicle. This system uses an exhaust fluid (ADBlue) to break NOx in the exhaust gases down into harmless elements before it is expelled from the car. Disabling this SCR system has made my car a Euro 3 standard and it should be a Euro 6 standard. Euro 3 standard applies to all new cars registered from 1st January 2001, Euro 6 standard applies to all new cars registered after 1st September 2015. Where do I go from here? I want to keep the car, I want the money I have spent on it so far and I want the Ad-Blue system programmed back in and any faults fixed with it after that is performed. Any help would be greatly appreciated. Should I consider a no win no fee solicitor?