Is it correct that the MOT rules are changing to basically say "if it had it fitted/working when it left the production line it has to be fitted/ working when tested"

If so how will this effect aftermarket mods to exhausts,egrs,etc,etc?

So if the CD players not working it would fail the MOT test, if the air cons not working ( common problem found here) it would fail the MOT test, if the glovebox bulb has expired it would fail its MOT test.

Tosh

Regards all

Juan

Sent from my iPhone using my thumbs

Isn't an egr delete a fail now?

Oh dear god I hope this isn't the case!!

I know missing cats are specifically targetted. Not sure on EGRs and I can't see any reason why DPF deletes would be invalid. I've gone through the regulations and emissions laws documents several times to be sure as I'm thinking of getting that (DPF out) done if mine starts playing up.

 

The new regs are about warning lights mostly. Those (or clearly disabled warning lights) will fail. Your CD player or glovebox light being out are not safety/emissions related so should be unaffected.

I had my MOT test in May and it passed with flying colours. The Pre cat has been removed on mine and the tester did say that the reading was quite high on idle and low revs, but once he had set it to the required RPM they fell back to a level that was acceptable and it passed

The last of the MOT changes have been in for some while now.  The purpose of a MOT is to ensure that the vehicle meets the minimum requirement, emissions/smoke testing is one requirement, so the vehicle either passes or fails this part of the test, but it's not the job of the tester to diagnose why it failed this part of the test.  It may have failed the smoke test due to a missing/blanked EGR valve, but that in itself is not a reason for failure.  On a spark ignition engine, it is possible to pass the emissions, but will fail if a catalyst that was originally fitted is missing.

 

There are more warning lights that are testable now, one glaring anomaly is the airbag light, if it is illuminated indicating a fault with the system, it's a fail, if it doesn't illuminate at all, it's an advisory.  Missing airbags, where fitted as standard are a fail.

 

With regard to lighting, the test is quite lax, where a light is made up from multiple light sources only half of them are required to work.

 

The car has to meet a minimum standard on testable items only, not a new standard for the entire car.

Re DPF delete a visual check to see if its there is part of the MOT so if you delete it make sure you take the insides out of the DPF & not replace with a plain pipe. It will depend how switched on the MOT station are but it will become a problem as more become aware of it

It can still pass the emission test but fail on no visible DPF ( absolutely bonkers but rules is rules )

Re DPF delete a visual check to see if its there is part of the MOT so if you delete it make sure you take the insides out of the DPF & not replace with a plain pipe. It will depend how switched on the MOT station are but it will become a problem as more become aware of it It can still pass the emission test but fail on no visible DPF ( absolutely bonkers but rules is rules )

Correct, especially if you have a Euro 4 car, like mine

Re DPF delete a visual check to see if its there is part of the MOT so if you delete it make sure you take the insides out of the DPF & not replace with a plain pipe. It will depend how switched on the MOT station are but it will become a problem as more become aware of it It can still pass the emission test but fail on no visible DPF ( absolutely bonkers but rules is rules )

 

I don't know where this rumour keeps coming from, but there is still no visual check for DPFs (or cats) on diesels! You can blatently remove the DPF with a straight through pipe and that in itself is not an MOT fail, as long as it passes the smoke test.

 

The 'visual check' thing is solely for catalysts on petrols.

Re DPF delete a visual check to see if its there is part of the MOT so if you delete it make sure you take the insides out of the DPF & not replace with a plain pipe. It will depend how switched on the MOT station are but it will become a problem as more become aware of it It can still pass the emission test but fail on no visible DPF ( absolutely bonkers but rules is rules )

 

There is absolutely no MOT requirement to check for missing DPFs and cats on cars with a compression ignition engine.  It's all taken care of in the smoke test, where the smoke limit was reduced from 3.0 (turbo), 2.5 (non turbo) to 1.50/m for vehicles first used on or after July 1st 2008.  A healthy diesel engine that has been used to its potential will easily achieve the 1.50/m limit.

 

MOT testers aren't stupid, the first give away of a DPF with it's internals knocked out will be soot in the tail pipe, the second will be the hollow sound that DPF casing will make when it is tapped.