EGR+Cooler Delete questions

[Rajsta]

Ive purchased a Darkside developments EGR Delete kit.
My vehicle is a 2011 2L s-line diesel 170 CR. engine code CAHA.

Has anyone carried out an EGR delete on these engines?
Im assuming that deleting the EGR is going to turn an engine warning light on! can the warning light be turned off with a relevant kit?

also, regarding the EGR cooler, i assume the 2 pipes fixed to it are coolant in/out pipes? once the cooler is removed should i join these together?

any tips regarding EGR+Cooler delete?

thanks.

[Rajsta]

Really! Nobody?

[Rajsta]

Ok so im going to assume nobody has done this mod to this engine ever! hence im getting no replies.

i dont suppose anybody knows that when you remove the egr valve, i assume the engine fault light comes on, is this able'd to be programmed off with the relevant software?

[MarkTM]

When my MIL light was burning a hole in my retina I simply applied some matt black nail varnish bought from my local 99p store.*

I have VCDS and can confirm that there's no way to disable a warning light permanently if the fault (as the cars diagnostic sees it) still remains.

Where did you buy the kit and were there no instructions??

*Please don't ask how much it cost!! :)

[Rajsta]

When my MIL light was burning a hole in my retina I simply applied some matt black nail varnish bought from my local 99p store.*

I have VCDS and can confirm that there's no way to disable a warning light permanently if the fault (as the cars diagnostic sees it) still remains.

Where did you buy the kit and were there no instructions??

*Please don't ask how much it cost!! :)

I purchased the egr blank/delete from darkside performance, it did not come with any details.

So basically i cannot switch of the warning light if I were to fit the egr blank!
Why is this? I'm wondering as my previous car could have the light turned off.
Thanks for replying

[MarkTM]

I could be wrong of course.

What was your previous car?

[Rajsta]

I could be wrong of course.

What was your previous car?

I am of course hoping you are wrong.

My previous car was a Skoda superb 130pd, brilliant car which I still have.

[gupsterg]

To get rid of MIL on ins.cluster you'd require EGR delete in ECU map, term is mapping it out.

And the answer for what to do with EGR cooler coolant pipes is, you need to link them / complete coolant flow circuit.

[MarkTM]

Gup, achieved with VCDS?

[gupsterg]

VCDS not touch ECU mapping mate :( , did inquire with some remappers about getting a remap + EGR delete and then got busy with other things to go through with it.

@Rajasta did you buy the kit DSD1093? (£75) I was viewing the photo below on DS site, it's a CAGA 2.0 TDi CR engine in an A4, identical to A6 engine.

25067

The red line is the connecting pipe in DS kit, its fitted by removing the EGR valve, they also have done away with the EGR connect pipe from valve to cooler, view photos below of non modified engine.

25068

Personally the way MOT's are getting stricter about removing factory fitted emissions equipment (AFAIK EGR delete is not fail yet, only if you have MIL on) I'd go for a more subtle delete.

2506925070

Place blanking plates at red lines, get EGR delete in ECU map.

I'd get an EGR delete in ECU which not only switches MIL off but modifies it for lack of EGR system ie air mass , etc ...

Some useful links:-

4-cylinder TDI engine (2.0 ltr. 4-valve common rail), mechanics > Exhaust system > Exhaust gas recirculation > Exhaust gas recirculation valveN18 with exhaust gas recirculation potentiometerG212 - exploded view (http://workshop-manuals.com/audi/a4_mk3/power_unit/4-cylinder_tdi_engine_%282.0_ltr._4-valve_common_rail%29_mechanics/exhaust_system/exhaust_gas_recirculation/exhaust_gas_recirculation_valven18_with_exhaust_ga s_recirculation_potentiometerg212_exploded_view/)

4-cylinder TDI engine (2.0 ltr. 4-valve common rail), mechanics > Exhaust system > Exhaust gas recirculation > Exhaust gas recirculation system - exploded view (http://workshop-manuals.com/audi/a4_mk3/power_unit/4-cylinder_tdi_engine_%282.0_ltr._4-valve_common_rail%29_mechanics/exhaust_system/exhaust_gas_recirculation/exhaust_gas_recirculation_system_exploded_view/)

The smaller port on manifold in this image is the exhaust gas supplying port.

4-cylinder TDI engine (2.0 ltr. 4-valve common rail), mechanics > Exhaust system > Exhaust manifold > Removing and installing exhaust manifold (http://workshop-manuals.com/audi/a4_mk3/power_unit/4-cylinder_tdi_engine_%282.0_ltr._4-valve_common_rail%29_mechanics/exhaust_system/exhaust_manifold/removing_and_installing_exhaust_manifold/)

[MarkTM]

VCDS not touch ECU mapping mate :(

Gup it was rhetorical for me but mainly for OP's benefit, as he's bought a DIY kit but will need to go to a specialist, thus rendering it not 100% DIY.

Hopefully he can do the bulk of the work and a local remapper to sort the ECU out, my view is unless particularly amenable they'd prefer to do the whole job.

[gupsterg]

Gup it was rhetorical for me ....

Lost in translation to me mate! LOL :D ...

[Rajsta]

@Gupsterg,

yes the kit i purchased is the DSD1093.
Your idea on the egr delete is a good idea, and would be even simpler to do. i think this is the best way to do it regarding any future proofing in any m.o.t law changes.
i suppose the only thing is that you would still have to clean the egr valve out periodically to prevent it getting coked up, but i suppose this is the nature of the beast in cars these days.
thanks for the info :fing02:

[gupsterg]

i suppose the only thing is that you would still have to clean the egr valve out periodically to prevent it getting coked up,

No you wouldn't, when you place blanking plate at exhaust manifold EGR supply port nothing will enter EGR cooler/valve/pipes. The second plate you will place between EGR valve and connecting pipe will ensure second seal, so that's two seals before the EGR valve plus as EGR valve will be permanently disabled it will remain close, a third seal to stop carbon going into intake!

Google for SSP420 Audi 2.0-litre TDI Engine with Common Rail Injection System , view page 48 @ item 8 you are sealing and item 3 so how will coking occur? and page 49 states info on EGR valve.

[Rajsta]

No you wouldn't, when you place blanking plate at exhaust manifold EGR supply port nothing will enter EGR cooler/valve/pipes. The second plate you will place between EGR valve and connecting pipe will ensure second seal plus as EGR valve will be permanently disabled it will remain close, a third seal!

Google for SSP420 Audi 2.0-litre TDI Engine with Common Rail Injection System , view page 48 @ item 8 you are sealing and item 3 so how will coking occur? and 49 states info on EGR valve.

Yes you are correct, i know this from looking into the egr delete on my previous car. ive no idea why i said that lol.

[Rajsta]

VCDS not touch ECU mapping mate :( , did inquire with some remappers about getting a remap + EGR delete and then got busy with other things to go through with it.

@Rajsta did you buy the kit DSD1093? (£75) I was viewing the photo below on DS site, it's a CAGA 2.0 TDi CR engine in an A4, identical to A6 engine.

25067

The red line is the connecting pipe in DS kit, its fitted by removing the EGR valve, they also have done away with the EGR connect pipe from valve to cooler, view photos below of non modified engine.

http://www.vwaudiforum.co.uk/forum/attachment.php?attachmentid=25068&stc=1

Personally the way MOT's are getting stricter about removing factory fitted emissions equipment (AFAIK EGR delete is not fail yet, only if you have MIL on) I'd go for a more subtle delete.

http://www.vwaudiforum.co.uk/forum/attachment.php?attachmentid=25069&stc=1http://www.vwaudiforum.co.uk/forum/attachment.php?attachmentid=25070&stc=1

Place blanking plates at red lines, get EGR delete in ECU map.

I'd get an EGR delete in ECU which not only switches MIL off but modifies it for lack of EGR system ie air mass , etc ...

Some useful links:-

4-cylinder TDI engine (2.0 ltr. 4-valve common rail), mechanics > Exhaust system > Exhaust gas recirculation > Exhaust gas recirculation valveN18 with exhaust gas recirculation potentiometerG212 - exploded view (http://workshop-manuals.com/audi/a4_mk3/power_unit/4-cylinder_tdi_engine_%282.0_ltr._4-valve_common_rail%29_mechanics/exhaust_system/exhaust_gas_recirculation/exhaust_gas_recirculation_valven18_with_exhaust_ga s_recirculation_potentiometerg212_exploded_view/)

4-cylinder TDI engine (2.0 ltr. 4-valve common rail), mechanics > Exhaust system > Exhaust gas recirculation > Exhaust gas recirculation system - exploded view (http://workshop-manuals.com/audi/a4_mk3/power_unit/4-cylinder_tdi_engine_%282.0_ltr._4-valve_common_rail%29_mechanics/exhaust_system/exhaust_gas_recirculation/exhaust_gas_recirculation_system_exploded_view/)

The smaller port on manifold in this image is the exhaust gas supplying port.

4-cylinder TDI engine (2.0 ltr. 4-valve common rail), mechanics > Exhaust system > Exhaust manifold > Removing and installing exhaust manifold (http://workshop-manuals.com/audi/a4_mk3/power_unit/4-cylinder_tdi_engine_%282.0_ltr._4-valve_common_rail%29_mechanics/exhaust_system/exhaust_manifold/removing_and_installing_exhaust_manifold/)


Ok, i have done the egr blank like Gupsterg mentioned :fing02: i also had it mapped off.
Also ive had the DPF removed, well actually ive had the DPF removed, opened up and the internals removed and then refitted. so no MOT fail as its still in place.

ive got to say, the car feels a hell of a lot different:drive:. It feels alot more responsive, faster up to speed, and ive now got the turbo spooling up sound,which i have to say i like.

There is one thing however that ive noticed after these mods which concern me a little, i actually think it maybe because of the EGR blank. the car seems to run hotter, not visually by looking at the gauge but i noticed that the engine fan stays on for around 10mins after a drive, whereas before it would hardly every come on.
im sort of thinking about unblanking the EGR and putting it back to standard. plus ive read up on stories that say it actually cools the combustion chambers. what do you think people?

[MarkTM]

Great to see that someone's done this, now just have to wait for someone to do it on a 3.0 quattro before I consider on mine :)

Have you had it scanned with VCDS since the change? I'd offer to if you were close to me but 'UK' as a location doesn't help much...you may live down my street for all I know :D

MIL on is not a MOT fail btw.

[Rajsta]

For me, if the mil is on its an mot failure. my car basically has 2 mot's a year, 1 normal mot like every vehicle, and a taxi test which they pull up any little thing they can to fail you. its pathetic, if my car has the normal mot, i dont see why we have to have it done again after 6 months. uk with there health and safety!! pahh.

anyway, back on topic, has anyone else with the same vehicle carried out an egr delete? did you find the car running hotter than before like i mentioned above?

[MarkTM]

Aaah was not aware was a hire and reward vehicle.

Do a search on 'EGR delete' and there are a couple of people that have done it, so you can try and PM them