[Watsey]

Originally Posted by bmwPower99

I've got bimmerlink and since the egr software delete, the back pressure has not been affected, regens happen as normal and I get more mpg. I'm tempted to physically delete it now as it frees up space in the engine bay.

Removing the EGR valve and/or cooler will be an instant UK MOT fail based upon simple visual inspection.

An MOT fail will then invalidate your insurance.

Just leave it in place.

[thunder83]

Originally Posted by Watsey

Removing the EGR valve and/or cooler will be an instant UK MOT fail based upon simple visual inspection.

An MOT fail will then invalidate your insurance.

Just leave it in place.

a closed egr will only produce a higher rate of NOX that always filtered by the fap will lead to premature death of your filter, but don't talk nonsense please, closing the egr does not lead to any consequences because no probe or test will be able to see it, unlike the particulate matter in the event of a broken fap

[Enabled]

Originally Posted by thunder83

a closed egr will only produce a higher rate of NOX that always filtered by the fap will lead to premature death of your filter, but don't talk nonsense please, closing the egr does not lead to any consequences because no probe or test will be able to see it, unlike the particulate matter in the event of a broken fap

Please do some more study before you post, the "FAP" (filtro antiparticolato diesel) or DPF in English filters the particles, which are completely independent of NOx. NOx will not damage the DPF. EGR accounts for 10-20% reduction of NOx at best, with other systems reducing it further with aftertreatment.

[thunder83]

Originally Posted by Enabled

Please do some more study before you post, the "FAP" (filtro antiparticolato diesel) or DPF in English filters the particles, which are completely independent of NOx. NOx will not damage the DPF. EGR accounts for 10-20% reduction of NOx at best, with other systems reducing it further with aftertreatment.

the NOX particles which are produced as a result of the high diesel combustion temperatures and which are not particulates cannot be degraded like normal particulate matter, therefore the useful life of the fap also depends on the fact that the egr significantly lowers the combustion temperature and consequently the percentage of ASH MASS which cannot be degraded in any way and which leads to the death of the dpf after a certain number of cycles

[Enabled]

Sigh.

NOx are not particles, come on man, this is basic science.

Ash mass is from oil burning and it can be washed away with a detergent process to like new. The DPF is a simple particulate trap for soot from diesel combustion, it does not do chemistry. It's a very simple and effective method to reduce particulates.

There are 2 other NOx treatment methods besides EGR and they're not related to the DPF at all. Those have a different method specifically for NOx, which are the gases nitrogen monoxide and nitrogen dioxide.

You've got this all wrong and sure post a lot of incorrect information.

[Watsey]

Originally Posted by thunder83

a closed egr will only produce a higher rate of NOX that always filtered by the fap will lead to premature death of your filter, but don't talk nonsense please, closing the egr does not lead to any consequences because no probe or test will be able to see it, unlike the particulate matter in the event of a broken fap

I see that Enabled has already replied, correctly.

NOX, nitrous oxide, is a gas. It does not comprise particulates, at least not as they are relevant to a DPF. NOX does not clog a DPF, period.

The UK annual vehicle safety and roadworthiness inspection, called the "MOT", includes a very wide range of inspections including any signs of tampering with OEM emissions hardware (visual inspection and emissions tests). The EGR valve, the EGR cooler, and the DPF (for diesel-engined vehicles), if part of the OEM specification, are all integral to the manufacturer's original equipment.

Tampering and/or removal of any aspect of the emissions hardware/system constitutes an instant MOT fail and the vehicle can be (but may not instantly be) impounded. Large fines are a possibility. Insurance becomes invalidated.

bmwPower99, whose member profile states "uk" as the location, posted that they were considering physically deleting the EGR (which would typically be understood to comprise the EGR cooler and the EGR valve) "as it now frees up space". A bona fide MOT inspector would instantly see this during the inspection and the vehicle would instantly fail the test.

Get your facts straight before you call others out for "nonsense".

[thunder83]

Originally Posted by Watsey

I see that Enabled has already replied, correctly.

NOX, nitrous oxide, is a gas. It does not comprise particulates, at least not as they are relevant to a DPF. NOX does not clog a DPF, period.

The UK annual vehicle safety and roadworthiness inspection, called the "MOT", includes a very wide range of inspections including any signs of tampering with OEM emissions hardware (visual inspection and emissions tests). The EGR valve, the EGR cooler, and the DPF (for diesel-engined vehicles), if part of the OEM specification, are all integral to the manufacturer's original equipment.

Tampering and/or removal of any aspect of the emissions hardware/system constitutes an instant MOT fail and the vehicle can be (but may not instantly be) impounded. Large fines are a possibility. Insurance becomes invalidated.

bmwPower99, whose member profile states "uk" as the location, posted that they were considering physically deleting the EGR (which would typically be understood to comprise the EGR cooler and the EGR valve) "as it now frees up space". A bona fide MOT inspector would instantly see this during the inspection and the vehicle would instantly fail the test.

Get your facts straight before you call others out for "nonsense".

maybe you don't know that when the car is in the regeneration phase the egr is automatically deactivated...
then if you make flashy changes obviously you're out of the norm, that's logical

[Watsey]

Originally Posted by thunder83

maybe you don't know that when the car is in the regeneration phase the egr is automatically deactivated...
then if you make flashy changes obviously you're out of the norm, that's logical

The question related to the physical removal of the EGR. You responded, incorrectly, regarding NOX particulates and the DPF.

Now you’ve switched tracks and are trying to discuss when the EGR valve is open/closed. This is not relevant to the physical removal of the valve.

The operation if the EGR valve can be software coded if that’s what the owner wants. It would be an MOT fail in the UK, and therefore illegal, but the reality is that it is not detectable using the current MOT inspection process.

Removal of any of the OEM emissions equipment is an automatic MOT fail.

Do try to stay on topic.

[Enabled]

A suggestion would be to post "It's just a joke bro" and we'll just chalk it up to Justin Kruger and David Dunning, and all will be ok.