EGR Delete issues

[Loz]

A cyclone cartridge filter before cooling would probably improve matters.
IF your engine consumes oil fit an oil trap on the crankcase breather, taking the oil out of the cycle before it gets burnt poorly and creates soot will help.
My Euro 5 180ps doesn‘t indicate any oil loss on the dipstick between oil changes.
EDIT:

(PDF) Use of exhaust gas recirculation (EGR) and cyclonic separator for simultaneous NOx and PM reduction in DI diesel engines

PDF | This study presents the results of exhaust gas recirculation (EGR) and cyclonic separator for simultaneous oxides of nitrogen (NOx) and... | Find, read and cite all the research you need on ResearchGate

www.researchgate.net

From the Conclusion section; 34-61% reduction in PM using the cyclonic filter.

Maybe a redesigned rear Flexi-pipe that passes through a cyclonic filter before the EGR valve would help both valve and cooler.

 

[DXX]

Maybe a redesigned rear Flexi-pipe that passes through a cyclonic filter before the EGR valve would help both valve and cooler.

Most definitely

 

[Robbo891]

Unless you have the service book or receipt with Reg #, date and milage you’re taking the sellers word for it.
My gut feeling is it probably wasn’t replaced as I can’t see a cooler / valve fouling in a year.
The warning light doesn’t necessarily indicate a defective EGR system, you need to get it checked for fault codes.

That's all you can do isn't it?
Sadly all I could take.
I have a code reader and P0401 was the code. I have been speaking with a tuner more regularly and he said he will perform a full diagnostic check first, check the valve operation, perm shut it, map the code out, perform a full engine carbon clean and boost performance from 102bhp to 150bhp (think i will decline the latter). He explained cant go more due to 5-speed box on the limit. Not sure I want to risk that at all.

 

[Loz]

Most definitely

It's just a shame that its tucked around the back and difficult to get to..

 

[DXX]

Has anybody measured the exhaust gas temperature drop across the cooler (INLET and OUTLET)?
Preferably done with a new EGR with some load. It might be possible to do away with the cooler all together, just modify the cooler core or make a dummy transition piece. This will just leave the valve. This modification would be relatively simple.
I can’t help but think that such a small cooler with soot covered tubing has little cooling effect on the exhaust gases at high flow rate.

 

[Spazpecker]

Im going to block the egr off both sides so no flow through the cooler.

 

[DXX]

I‘ve spent 30 mins doing some online reading about failed EGR coolers (non VW), not regarding fouling but leaking coolant.
It seems that the pressed steel construction buckles and leaks if they overheat.
Note that the T6 has an EGR cooler electric pump V400, if you get a fault with regards to this pump be aware that the EGR cooler will probably overheat and may leak coolant into the engine.

 

[Mooncat]

It's just a shame that its tucked around the back and difficult to get to..

It's not that bad on the Euro 5 engines up to 140ps - it's raised up so you can see it just behind the cam cover. The same engine in VAG cars is a different story though - front sub-frame off just to see it and if you have 4Motion the transfer box has to come off too.

 

[CamperBadger]

There's big fines for messing about with emission systems, mot hassle, morality issues too.

I've modded my van a lot, but removing egr's and dpf's is just that one step too far for me personally.

As somebody said before, Darkside are the only ones offering this service as far as I know, or at least the only semi-reputable people offering this service.

I would be interested in getting some clarity on the law around this one. I am considering an EGR delete.

 

[DaveD]

I would be interested in getting some clarity on the law around this one. I am considering an EGR delete.

Although it is not illegal to remove the EGR from your vehicle, it is an offence under the Road vehicles (Construction and Use) Regulations (Regulation 61a(3))1 to use a vehicle which has been modified in such a way that it no longer complies with the air pollutant emissions standards it was designed to meet. Removal of the EGR will almost invariably contravene these requirements.
The potential penalties for failing to comply with Regulation 61a are fines of up to £1,000 for a car or £2,500 for a light goods vehicle.

I borrowed that from;

EGR Removal/Delete

Pioneers in ECU Remapping, Diesel Tuning, DPF Removal, Engine Tuning and Chip Tuning. Worldwide dealer network with the best performance gains in the industry.

www.celtictuning.co.uk

It's probably true.
Chances of being caught? Next to Zero.

 

[CamperBadger]

Although it is not illegal to remove the EGR from your vehicle, it is an offence under the Road vehicles (Construction and Use) Regulations (Regulation 61a(3))1 to use a vehicle which has been modified in such a way that it no longer complies with the air pollutant emissions standards it was designed to meet. Removal of the EGR will almost invariably contravene these requirements.
The potential penalties for failing to comply with Regulation 61a are fines of up to £1,000 for a car or £2,500 for a light goods vehicle.

I borrowed that from;

EGR Removal/Delete

Pioneers in ECU Remapping, Diesel Tuning, DPF Removal, Engine Tuning and Chip Tuning. Worldwide dealer network with the best performance gains in the industry.

www.celtictuning.co.uk

It's probably true.
Chances of being caught? Next to Zero.

Although it is not illegal to remove the EGR from your vehicle, it is an offence under the Road vehicles (Construction and Use) Regulations (Regulation 61a(3))1 to use a vehicle which has been modified in such a way that it no longer complies with the air pollutant emissions standards it was designed to meet. Removal of the EGR will almost invariably contravene these requirements.
The potential penalties for failing to comply with Regulation 61a are fines of up to £1,000 for a car or £2,500 for a light goods vehicle.

I borrowed that from;

EGR Removal/Delete

Pioneers in ECU Remapping, Diesel Tuning, DPF Removal, Engine Tuning and Chip Tuning. Worldwide dealer network with the best performance gains in the industry.

www.celtictuning.co.uk

It's probably true.
Chances of being caught? Next to Zero.

Given the costs of EGR replacement the penalty fines seem almost reasonable…

 

[DaveD]

Given the costs of EGR replacement the penalty fines seem almost reasonable…

When you consider the alternatives, it is!
I haven't had EGR problems on my T6 but I deleted the EGR on a previous car that was endlessly problematic, the only other solution available was scrapping it at 5 years old, hardly good for the environment or my pocket. It ran perfect after the EGR delete, but it was a Euro 5 and I'm not so sure I'd do it on a Euro 6.

 

[CamperBadger]

When you consider the alternatives, it is!
I haven't had EGR problems on my T6 but I deleted the EGR on a previous car that was endlessly problematic, the only other solution available was scrapping it at 5 years old, hardly good for the environment or my pocket. It ran perfect after the EGR delete, but it was a Euro 5 and I'm not so sure I'd do it on a Euro 6.

Yes I am hesitant about doing it to my T6. I believe it could pass on the carbon problem to the DPF.

 

[dandan88]

When you consider the alternatives, it is!
I haven't had EGR problems on my T6 but I deleted the EGR on a previous car that was endlessly problematic, the only other solution available was scrapping it at 5 years old, hardly good for the environment or my pocket. It ran perfect after the EGR delete, but it was a Euro 5 and I'm not so sure I'd do it on a Euro 6.

Why not on the 6?

 

[DaveD]

Why not on the 6?

My not very expert opinion - it's a far more sophisticated and complex set up compared to the Euro 5 engine, the EGR valve that I blanked off was activated by a vacuum pipe, there were no sensors to tell the ECU that it had been tampered with and after I'd blanked it off the engine was much more free revving and it performed better.
I don't know enough about the Euro 6 engine and emissions system to be confident that it wouldn't screw up something else, or stop the DPF regeneration process from happening properly.

 

[Bigsidavies]

Yes I am hesitant about doing it to my T6. I believe it could pass on the carbon problem to the DPF.

I’d rather pass the problem to the dpf than into the engine. One can be removed and cleaned, the other costs circa £11k

 

[CamperBadger]

I’d rather pass the problem to the dpf than into the engine. One can be removed and cleaned, the other costs circa £11k

A fair point

 

[tomf90]

I‘ve spent 30 mins doing some online reading about failed EGR coolers (non VW), not regarding fouling but leaking coolant.
It seems that the pressed steel construction buckles and leaks if they overheat.
Note that the T6 has an EGR cooler electric pump V400, if you get a fault with regards to this pump be aware that the EGR cooler will probably overheat and may leak coolant into the engine.

@DXX Sorry to dive back in an old thread, what happens if the egr cooler leaks coolant into the engine (think that's been happening to mine)...

 

[DXX]

@DXX Sorry to dive back in an old thread, what happens if the egr cooler leaks coolant into the engine (think that's been happening to mine)...

Worst case a cylinder fills with water and you bend a connecting rod next time you try to start it.
Otherwise the coolant evaporates in the hot cylinder, not particularly good for the combustion, piston rings, exhaust valve, turbocharger, DPF and sensors.
If you don’t check the coolant level you could overheat the engine.

 

[tomf90]

Worst case a cylinder fills with water and you bend a connecting rod next time you try to start it.
Otherwise the coolant evaporates in the hot cylinder, not particularly good for the combustion, piston rings, exhaust valve, turbocharger, DPF and sensors.
If you don’t check the coolant level you could overheat the engine.

Wonderful hopefully I'll be lucky then. Thanks for getting back to me about it.