New Owner - Has Someone Removed My Dpf?

[Gtownsman]

Think one of the previous owners might have removed my DPF, Please see picture.

Thanks for any advice in advanced.

[steve2006]

Certainly looks after market, probably an emulator. Does the DPF look OEM or been cut open then rewelded?

Problem is if you spotted it so will an MOT tester!

[Gtownsman]

I haven't actually looked at the DPF itself, I am worried about the MOT part of it though.

[Gtownsman]

The after market looking box plugs into these 2 grey plug further down the engine bay.

I can't see any cuts or welds on the DPF itself but there's a shield in the way of one side and I can see the other side.

[Gtownsman]

Image of grey plugs

[rayaans]

Image of grey plugs

Ooh dear DPF's, hate those things, my wife's merc has to go in every year to get it regenerated! Anyways, just hope the MOT tester doesnt spot it because a new one costs about £1k

[Gtownsman]

I have spoken with a specialist since and they have confirmed that this is the DPF bypass. They were actually really helpful.

Apparently on other diesels the DPF is hollowed out and the ECU reprogrammed to forget that is has a DPF.

On a Lexus it isn't possible to reprogram the ECU to forget the DPF, therefore they generally hollow it out, unplug it and then put a bypass box in to trick the ECU into thinking everything is great and the DPF is working fine.

Due to the cost of replacing a DPF the requests to have this Mod done on the 220d is increasing.

[rayaans]

I have spoken with a specialist since and they have confirmed that this is the DPF bypass. They were actually really helpful.

Apparently on other diesels the DPF is hollowed out and the ECU reprogrammed to forget that is has a DPF.

On a Lexus it isn't possible to reprogram the ECU to forget the DPF, therefore they generally hollow it out, unplug it and then put a bypass box in to trick the ECU into thinking everything is great and the DPF is working fine.

Due to the cost of replacing a DPF the requests to have this Mod done on the 220d is increasing.

So it has been removed? Its going to cause you trouble if it gets spotted in an MOT

[Gtownsman]

Apparently it has been removed, however I have yet to see any weld marks on the DPF itself. I need to get it on an ramp and take a look.

I've got a while left on the MOT yet so I will worry about it when the time comes.