ERG valve

[The Classic Man]

Hi.

Is it possible to overhaul the ERG valve on my 51 plate Td5.
How much for a new one.

[tuko]

Save your money and remove it. Your motor will thank you. ;)


Todd.

[lynalldiscovery]

EGR removal kit for TD5 from TD5Alive or Bell autos less than £40.
Does away with all the pipework and the valve.
Easy to fit had mine on a couple years now been no bother.


Lynall

[thebiglad]

EGR removal kit for TD5 from TD5Alive or Bell autos less than £40.
Does away with all the pipework and the valve.
Easy to fit had mine on a couple years now been no bother.


Lynall

Ok, no problems - but where's the advantage?

It doesn't seem to boost power or economy, it doesn't negatively affect emissions, so why do it?

I have a TDi300auto with EGR & EDC and I'm trying to get to the bottom of whether or not to remove the EGR setup. I know it's only £40 but what does it do?

[tuko]

Your no longer recirculation exhaust gases into the motor, the motor will now (without the EGR) breathe fresh air. Remove the top portion of the ERG hose thats clamped to the manifold intake, you'll see that it's fully coated with a gummy oil coating from the exhaust gases being recirculated into the motor. Thats obviously not good for the motor.:eek:

No it doesn't boost power, but the pedal response with my 300Tdi auto has improved enough that it was noticable immediately.


Todd.

[lynalldiscovery]

Doesnt cost £40 for TDI about £3 e-bay blanking plate, i have blanked the egr on all the cars i have owned.

I always say to people imagine having to breathe you own farts:D

If you look at the crap coated onto the inside of the inlet manifold you would do it asap.

My last 300 auto edc and egr and every other acronym going was de egr, decatted tuned to the nuts and reasonably reliable.

And for £3 why not try it?

Lynall

[thebiglad]

You're absolutely right - why not try.

I'll order one today !!

[The Mad Hat Man]

I have not found anyone that advocates keeping the EGR. It seems to be ....



REMOVE IT!

[Will Hay]

I have not found anyone that advocates keeping the EGR. It seems to be ....



REMOVE IT!


I'm 99% sure I'll be removing mine, but I've seen the kit for £40.00 which includes a stainless plate with a circa 4" diamator tube [to replace with vacuum pipe], as well as the blanking plate.

Ive also seen just the blanking plate on ebay for a fiver.

Do I need to replace the vacuum pipe with the 4" dia. tube, as well as fit the blanking plate to the exhaust manifold?

[JimGNR]

On the TD5 you can simply blank off the pipe from the exhaust manifold and leave everything in place, this will stop the exhaust gases being recirculated into the intake manifold.

The other part of the more expensive kits is to actually replace the EGR valve body, this is the 4" section you mention. The actual EGR valve body causes quite a restriction within the air inlet pipe, removing will, in theory allow the engine to breathe better.

The full kit means that all the pipework can be removed. I presume you can blank the vacuum operating pipe and the ECU will be none the wiser.

Can the EGR be disabled through diagnostics software?

[Will Hay]

On the TD5 you can simply blank off the pipe from the exhaust manifold and leave everything in place, this will stop the exhaust gases being recirculated into the intake manifold.

The other part of the more expensive kits is to actually replace the EGR valve body, this is the 4" section you mention. The actual EGR valve body causes quite a restriction within the air inlet pipe, removing will, in theory allow the engine to breathe better.

The full kit means that all the pipework can be removed. I presume you can blank the vacuum operating pipe and the ECU will be none the wiser.



Many thanks.
One question still remains for me, if you leave the original EGR valve body and have blanked off the inlet manifold, how do the exhaust gases vent?
Will

[thebiglad]

Many thanks.
One question still remains for me, if you leave the original EGR valve body and have blanked off the inlet manifold, how do the exhaust gases vent?
Will

Down the exhaust pipe as normal.

This whole EGR thing is just a branch off the normal exhaust route, so when blocked off, the exhaust system functions perfectly normally.

[sidtheferret]

I understand using a blanking plate but whay about all the other stuff that appears to be involved ?

Do you just ignore it ?

[sidtheferret]

Sorry, should be "what".

[thebiglad]

I understand using a blanking plate but whay about all the other stuff that appears to be involved ?

Do you just ignore it ?

I'm sure what you mean by "all the other stuff"? If you are refering to the valve itself and its associated pipework and connections that's easy.

You have two options:

1. Just using blanking plate. This will stop any future exhaust gases (and attendant mucky tar stuff) flowing through the inlet manifold;

2. Blank off the EGR valve and remove the EGR pipework, controlling electronic connections and vacuum pipe. Replace the old pipework with a new intercooler top hose. If you do this you will have the benefit above plus smoother inlet air flow and tidier engine bay.

It just seemed obvious to me that after you have rendered something useless (by blocking it off) then all the rest is superfluous, so get rid !!

Plus, if you really want to go to town (and have deep-enough pockets) you could get a set of new silicone hoses which I suspect don't actually benefit very much but do look HUGELY cool - yes, sad I know but............................................... .................................................. .................................................. ...........

[sidtheferret]

Thanks for info.

You are right about the obvious, but sometimes the whole story makes it so much clearer.

I think I will adopt alternative 1 and see how it goes (no pun intended).

:D

[HarryD]

Completed this task this morning. BRILLIANT.
Got the full kit from Td5Alive with some other stuff.
There's more to the removal than menbtioned here but it's all very easy.
The entire system is removed as mentioned (Not just the plate to blank off).
There is an electrical plug to disconnect (You just pull it off and tie wrap it somewhere handy), to fool the ECU to believe you dont have an EGR valve. You blank off the vac pipe with a self tapper.
The gunk found within the inlet manifold resembled a seriously polluted beach (no gulls though), so this was cleaned out whilst wearing rubber gloves.
The point where the egr pipework connects to the exhaust manifold was causing me some trouble for a couple of days as the bolts were very tight and there is a risk of snapping them, so did that job first thing this morning when it was cold and used some wd40 to assist. easy peasy with a bit of leverage on the allen key.
The throttle response is better. it's early days so the other benefits nead to be assessed.
Go for it. Get the kit. An hour or so and £45....it's worth it.

[sharkey964]

I just replaced my ERG valve yesterday with the full kit from Td5 alive,(sieris 2 model)2003,not quite the 10 minute job I was led to believe,took about 2 hours to complete,but I have to say,the engine is alot smoother and quieter from cold,and feels slightly more powerful.As yet I don't know about any increase in fuel economy.
It seems to me to be a cheap worthwile modification.:D:D;)

[TEMPL4R]

I had the inlet manifold off a Jag X Type Diesel yesterday ( Ford engine same as Mondeo) it was full of oily muck. The Vectra has the same problem, it gums up the butterflys in the second intake ports.

Chris

[jimmy disco]

Hello, do you know if your td5 is better on fuel yet. I am thinking of blockin my egr.Thanks.

[sharkey964]

A quick update after a month of running sans ERG valve,no visible diference in fuel economy,power delivery is much smoother but no visible increase in power,less smoke from exhaust.
Was it worth doing?
Well,no negatives,and no more crap being fed back into the engine,thats got to be a plus,so I'd say go for it.:D:D:D

Marc,

2003 Td5 auto
1991 Porsche 911 tiptronic
2004 Golf 140 Tdi (DSG)

[littlelegs]

The only purpose of an exhaust gas recirculator valve is to (attempt to) reduce exhaust emissions, can't remember the particular oxide name but they are produced at full air, light throttle and cruising load conditions which gives very high combustion temperatures. By introducing an inert gas, (the exhaust) into the air intake in those conditions the combustion temperature is reduced and so are the emissions.

All fine in theory but in practice they don't work well for long, cause other long term problems and in my experience increase fuel consumption, reduce power quite a bit and cause intermitant blue exhaust smoke and so I think negate any benefit. Get rid but remember you then have to drive at full throttle all the time to avoid the unnamed oxides! :D I disabled it from my 300TDI by blanking the flexible exhaust pipe connection at the air pipe with a metal disc and unplugging the cable and pipes, cost nil! :)

[JimAttrill]

The cheapest way to stop the EGR working is to disconnect the electrical lead and the vacuum pipe, plugging the pipe with a self-tapper as above.

The danger here is that you still have exhaust gas in the pipe around the front of the engine, and normally that would not matter. But the bottom of the EGR alloy valve sometimes breaks off and then the exhaust melts the rubber cover thingy and makes a hell of a mess. So better to remove the saxophone pipe and blank off the exhaust manifold hole. The Allen bolts can be very difficult to remove, as said above.

And if you really feel like it, you can remove the EGR valve completely as above.

Note that the non-EGR later model TD5's still had the EGR valve blocking the intake a bit, though it had no works inside.

[jimmy disco]

Thanks for your advice including the funny bit.I have decided i am going to block off egr.once again,thanks. Jim.

[dudenstumpy]

Will my TD5, if I have the £3 blanking plate fitted, fail some sort of emissions test come M.O.T. time ?

cheers,

[littlelegs]

Will my TD5, if I have the £3 blanking plate fitted, fail some sort of emissions test come M.O.T. time ?

cheers,

Not unless the emission test includes running after you with a probe at 50MPH! :D

[TEMPL4R]

It's not an emissions test, it's a smoke test.Two different things.

You can take off what you want as long as it doesn't emit too much smoke or sound excessively noisey.

Chris

[thebiglad]

Will my TD5, if I have the £3 blanking plate fitted, fail some sort of emissions test come M.O.T. time ?

cheers,

NO !!!!!

Loads of people on various LR forums have done this on TD5 and Tdi's without any mot problems.

My last test 2 weeks was a success. Over here the max limit is 3.00 ?? of something to do with opacity & my result was 0.89, so less than one third of the allowable amount of smoke/particulates. Clean runner !!