MOT Emissions Fail

[Mike523152]

Took my Rover 75 2.0 Diesel in for it's MOT last Thursday, it failed on emissions with an average reading of 3.67 1/m, absolutely no idea what this relates to but the test applied was "Turbo (LIMIT: 3.00 1/m).
I asked the chap at the test centre what did this mean, I understand NOx, Particulates, Hydrocarbons etc. but how did this equate to these test readings, were particulates too high, NOx etc. without knowing that it's difficult to work out a solution. Anyway, I had a few ideas, fill up with Shell V Power Diesel as it contains GTL - Gas to Liquid fuel which is a lot cleaner than regular diesel and topping this up with a fuel additive would help, but would it be enough!
There was however something else I could do, last year when looking at emissions reductions technologies for my business I came across a device that you simply suspend in your tank that claimed to reduce emissions, improve performance and reduce fuel consumption, so I bought a few samples with a view to conducting a few tests on generators, trucks etc., never got round to fitting one in my Rover! Well on Thursday afternoon I did and took the car for a retest yesterday afternoon, results were significant, the test applied this time was Plate Value (LIMIT: 1.00 1/m) No idea why the different test, but the result was 0.97 1/m compared to 3.67 on Thursday consequently it passed it's MOT.
There must be a lot of people out there confused by these new tests especially when your car fails and the MOT Test centre tells you to take your car to a DPF specialist to have it checked out and repaired and nothing else, you know it's not going to be cheap.

I am not sure whether this device is Snake Oil or the Holy Grail, but I can't really see what else could have made such a significant improvement in the test results. If your having problems with emissions and want to know more drop me a message and I might be able to help.

[MSS]

Could you provide more details of this device please?

Preferably some photos as well.

Thanks.

[gnu]

My favourite 'snake oil' for improving emissions is Forte. I also use Cataclean if I think that's where the problem is. No doubt, there are good additives that work!

Yes, as MMS says, please post your new discovery.

[Arctic]

I have reiterated this a few times over the last year or so to try and combine your full service on your car the same week or the week before your MOT is due.

Change all filters, air, PCV, oil, & fuel filter & dropping in some forte, and the most important part make sure your manifold as been cleaned out, along with your EGR & MAP sensor, take your car on at least a 5-10 miles run before the MOT time on the day giving it a good thrashing in each and dropping it down a few times, ie an Italian tune up, the engine should be nice and hot and up to temperature when you arrived at your pre-booked time of MOT, it should pass quite easy if the above is followed if not then something else is wrong.

No use the MOT Test centre telling you to take your car to a DPF specialist to have it checked out and repaired as our cars do not have a DPF.

PS drop a bottle of this in your tank at least three times a year, one a week before your MOT is due.
https://www.ebay.co.uk/itm/222076086571

[roverbarmy]

Originally Posted by Arctic

I have reiterated this a few times over the last year or so to try and combine your full service on your car the same week or the week before your MOT is due.

Change all filters, air, PCV, oil, & fuel filter & dropping in some forte, and the most important part make sure your manifold as been cleaned out, along with your EGR & MAP sensor, take your car on at least a 5-10 miles run before the MOT time on the day giving it a good thrashing in each and dropping it down a few times, ie an Italian tune up, the engine should be nice and hot and up to temperature when you arrived at your pre-booked time of MOT, it should pass quite easy if the above is followed if not then something else is wrong.

No use the MOT Test centre telling you to take your car to a DPF specialist to have it checked out and repaired as our cars do not have a DPF.

PS drop a bottle of this in your tank at least three times a year, one a week before your MOT is due.
https://www.ebay.co.uk/itm/222076086571

Or just get rid of those evil filthy horrible smelly diesels and buy a petrol!

[slovcan]

I will be the voice of skepticism. No doubt I will be criticized for this by some.

The OP has been a member for about 5 years and never posted. Now he has a magical device that allowed his car to pass the MOT a week after it failed miserably. Did an MOT tester really suggest taking it to a DPF specialist? His first and only post invites members to PM him for details of this magical device.

Members, use your heads. Such a magical device does not exist. Remember the discussion a couple of weeks ago about the magical box with the LED lights? These magical devices are meant to separate your money from your wallet.

Cheers,
Glenn

[MSS]

Originally Posted by slovcan

I will be the voice of skepticism. No doubt I will be criticized for this by some.

The OP has been a member for about 5 years and never posted. Now he has a magical device that allowed his car to pass the MOT a week after it failed miserably. Did an MOT tester really suggest taking it to a DPF specialist? His first and only post invites members to PM him for details of this magical device.

Members, use your heads. Such a magical device does not exist. Remember the discussion a couple of weeks ago about the magical box with the LED lights? These magical devices are meant to separate your money from your wallet.

Cheers,
Glenn

It is best not to confuse English politeness with gullibility!

[Arctic]

Originally Posted by Mike523152

Took my Rover 75 2.0 Diesel in for it's MOT last Thursday, it failed on emissions with an average reading of 3.67 1/m, absolutely no idea what this relates to but the test applied was "Turbo (LIMIT: 3.00 1/m).
I asked the chap at the test centre what did this mean, I understand NOx, Particulates, Hydrocarbons etc. but how did this equate to these test readings, were particulates too high, NOx etc. without knowing that it's difficult to work out a solution. Anyway, I had a few ideas, fill up with Shell V Power Diesel as it contains GTL - Gas to Liquid fuel which is a lot cleaner than regular diesel and topping this up with a fuel additive would help, but would it be enough!
There was however something else I could do, last year when looking at emissions reductions technologies for my business I came across a device that you simply suspend in your tank that claimed to reduce emissions, improve performance and reduce fuel consumption, so I bought a few samples with a view to conducting a few tests on generators, trucks etc., never got round to fitting one in my Rover! Well on Thursday afternoon I did and took the car for a retest yesterday afternoon, results were significant, the test applied this time was Plate Value (LIMIT: 1.00 1/m) No idea why the different test, but the result was 0.97 1/m compared to 3.67 on Thursday consequently it passed it's MOT.
There must be a lot of people out there confused by these new tests especially when your car fails and the MOT Test centre tells you to take your car to a DPF specialist to have it checked out and repaired and nothing else, you know it's not going to be cheap.

Hi Mike.
It maybe better if you posted on open forum what this snake Oil is, how much it is and where to purchase it from, seeing that you will only have space for 5 members to get in touch due to your message system being allowed no more than five messages, or you could subscribe then you would have a lot more room in your message system, only a suggestion.

[bl52krz]

Perhaps I should get one to hang in my tank as mine failed on emissions? No I don’t think so. The only thing that hangs in my tank is the level sensor for the amount of fuel in there. Thanks.

[Mike523152]

Some interesting comments. Not going to get into an argument with anyone over this or as to whether I post or don't post on these forums, although I do find the information provided on here extremely useful keeping my car on the road, I've saved a lot of money carrying out repairs etc. which I would have otherwise had to get done in a garage, so I'm grateful to everyone who contributes.
As for this device it doesn't matter to me whether people buy it or not, as I mentioned in my original post, I bought these devices for a completely unrelated project and it was only when my car failed it's MOT I thought it was worth trying to see what, if anything in did. The figures I posted are taken direct from the MOT certificate, copies can be accessed via this link

https://documentcloud.adobe.com/link...a-4cb1e7fbcbf5

I actually thought it might be helpful to anyone that has had a problem with emissions on their MOT. As for the MOT test itself, not my field of expertise perhaps if there are any experts out there that understand the test criteria they make like to comment accordingly.