DPF light on, despite new DPF ,running in limp No light,

[ZeusF]

Cerberaherts said:

So does fitting of 100cel cats etc also fall foul if this law? Aftermarket systems aren't approved and most I've seen are not stamped with "not for road use"

As far as the law suggests, if you take a road car outside of the OEM emissions specification you are committing an offence.
I was at a meeting at the Autosport last weekend and even when companies promote DPF off using words like (not for road use) they are still liable for a vehicle used on the road although I can't remember what that law was but I guess like aiding and abetting.
I am not trying to knock the work people do, Im just commenting on things I have read and heard through the SMMT and Trade and Commerce meetings for Automechanika and the like.

[Cerberaherts]

Thanks for the info, very interesting. I'm surprised that many official dealers are still willing to fit aftermarket parts given that potentially the legal buck stops with them. I know federal emission laws are far stricter, but it appears we have been getting away with this in the U.k up until now...

[Steve H]

and will continue to do so.


Saying something is illegal and that cars will be crushed means nothing without backing it up; no laws have been specifically quoted and no examples of anyone being prosecuted have been given.

Until I see some evidence of anything other than the potential for an MOT fail (on the visual test that emissions related components must not be removed) I'm not taking this too seriously.

[amstrange1]

It would certainly be interesting for ZeusF to refer directly to the laws he thinks are being broken here to add clarity.

My understanding wrt EMS/ECU reflashing is that the legal requirements place the onus on the OEM to implement certain security measures to discourage (and detect at service) aftermarket tinkering. I've not come across anything that makes the act of EMS tinkering in itself illegal, but would be interested to know which laws might apply.

If there were sufficient laws in place to prohibit the practices of the likes of Superchips, Revo, AmD et al, then the OEMs would be actively petitioning government to enforce them surely?!