How to remove EGR valve and EGR cooler from Audi A6 C7 Ultra 2014

[Sambor11]

Morning all. Just came up on dushboard emission icon. Car is running normally, fuel consumption normal. Two years ago I had similar symptoms and Audi replaced EGR valve and EGR cooler. I would like to remove and clean both but don't know where are they situated. Can anybody tell me where are they and how to remove them? Or any instruction online how to do it? Last time cost me £1200 to replace them. Thank you for any help. Also the fault code P2002 is coming up. 2 years ago Audi replaced EGR valve and cooler and was fine from that time. But now look similar again. To pay £1250 every 2 years it's kind of joke.

[Crasher]

Get a fault code read done first, guessing it is the EGR may be wrong and you could clean the system and still have the fault code stored and light on even if you have cured it.

[Sambor11]

Two years ago I had the same situation and Audi replaced EGR and cooler.
19226 - Particulate Trap Bank 1
P2002 00 [237] - Efficiency Below Threshold
Also the same fault code.
When I Google I saw, thaa lot of guys having this problem with 2.0 TDI Ultra ( 190 bhp) engines. One guy already replaced 3 times egr and cooler.

[Crasher]

On a CNHA engine the G450 and G550 sensors are after the EGR take off and measure the pressure across the DPF so I am struggling to see how a faulty V338 EGR unit can trigger a false DPF efficiency warning. I haven't got one to hand today and looking at the diagram on ELSA it doesn't make sense either. Then again I am just working on a low milage 2015 Altea where a damaged passenger door wiring harness shut the whole car down right across all its CAN connected infotainment, convenience and Powertrain systems and nearly set fire to the car!

[Sambor11]

On a CNHA engine the G450 and G550 sensors are after the EGR take off and measure the pressure across the DPF so I am struggling to see how a faulty V338 EGR unit can trigger a false DPF efficiency warning. I haven't got one to hand today and looking at the diagram on ELSA it doesn't make sense either. Then again I am just working on a low milage 2015 Altea where a damaged passenger door wiring harness shut the whole car down right across all its CAN connected infotainment, convenience and Powertrain systems and nearly set fire to the car!

Hi Crasher. This fault from 2 years ago
P200200 - Particulate filter, bank 1 ; malfunction
Management light on stady, no problems with driving. For over two years when Audu replaced egr and cooler was fine until yesterday. DPF burning out evsry 330 miles. That's why I pretty sure that is the same. But I can be wrong.

[Crasher]

Then you had "P2002 00 - Particulate filter, bank 1 ; malfunction" now you have "19226 - Particulate Trap Bank 1 P2002 00 [237] - Efficiency Below Threshold", a subtle but important difference.

[Sambor11]

Then you had "P2002 00 - Particulate filter, bank 1 ; malfunction" now you have "19226 - Particulate Trap Bank 1 P2002 00 [237] - Efficiency Below Threshold", a subtle but important difference.
What do you mean Crusher? Should I force dpf regen? With your experience should I replace sensors? Which ones?

[Crasher]

Many fault codes have secondary clarification codes such as [237] and in your case the first read said there DPF was faulty (which it appears it was not) and the lastest read shows it is not working as well as it should, what are you using to read the codes?

[Sambor11]

Many fault codes have secondary clarification codes such as [237] and in your case the first read said there DPF was faulty (which it appears it was not) and the lastest read shows it is not working as well as it should, what are you using to read the codes?

Unfortunately VCDS. I will try take today afternoon read some values. What should I look for?

[Crasher]

Why unfortunately? There is nothing better.

[Sambor11]

Why unfortunately? There is nothing better.

You are right.
There are values without engine on.
15:39:19
599 Particle filt.inlet temp.sens.1 bank 1; raw value 101.4 °C
600 Particle filt.inlet temp.sens.1 bank 1; uncnd. voltage 1082.8 mV
603 Particle filter; air pressure sensor 1 bank 1; raw value 4 hPa
604 Particle filter; differential pressure sensor 1 bank 1; offset 2 hPa
607 Particle filter; fuel consumption since last regeneration 15.88 l
608 Particle filter; kilometers since last regeneration 318970 m
609 Particle filter; oil ash volume 0.08 l
610 Particle filter; oil ash volume 33.8 g
611 Particle filter; soot mass calculated 13.55 g
612 Particle filter; soot mass measured 1.47 g
613 Particle filter; time since last regeneration 17906 s
614 Particulate filter ash load limit 80.00 g


This one is on idle.
15:41:24
599 Particle filt.inlet temp.sens.1 bank 1; raw value 137.5 °C
600 Particle filt.inlet temp.sens.1 bank 1; uncnd. voltage 1162.2 mV
603 Particle filter; air pressure sensor 1 bank 1; raw value 20 hPa
604 Particle filter; differential pressure sensor 1 bank 1; offset 2 hPa
607 Particle filter; fuel consumption since last regeneration 15.91 l
608 Particle filter; kilometers since last regeneration 318970 m
609 Particle filter; oil ash volume 0.08 l
610 Particle filter; oil ash volume 33.8 g
611 Particle filter; soot mass calculated 13.56 g
612 Particle filter; soot mass measured 2.01 g
613 Particle filter; time since last regeneration 18015 s
614 Particulate filter ash load limit 80.00 g

And this one on 2000 RPM
15:41:50
599 Particle filt.inlet temp.sens.1 bank 1; raw value 138.0 °C
600 Particle filt.inlet temp.sens.1 bank 1; uncnd. voltage 1163.4 mV
603 Particle filter; air pressure sensor 1 bank 1; raw value 42 hPa
604 Particle filter; differential pressure sensor 1 bank 1; offset 2 hPa
607 Particle filter; fuel consumption since last regeneration 15.91 l
608 Particle filter; kilometers since last regeneration 318970 m
609 Particle filter; oil ash volume 0.08 l
610 Particle filter; oil ash volume 33.8 g
611 Particle filter; soot mass calculated 13.56 g
612 Particle filter; soot mass measured 2.08 g
613 Particle filter; time since last regeneration 18036 s
614 Particulate filter ash load limit 80.00 g

Any suggestions please?

[Crasher]

That DPF is getting quite clogged, is yours an AdBlue car?

[Sambor11]

I double. Sorry.

[Sambor11]

Yes. AdBlue car. I never stop when dpf is burning out. No low rpm. Why can be like this? Should I force regen and try burn out? what about sensors? Are they will be okay?
Just now looked at logs from July and I had another fault cod!
Address 01: Engine (J623-CNHA) Labels: None
Part No SW: 04L 906 021 FE HW: 04L 907 309
Component: R4 2,0L EDC H23 8243
Revision: 85H23---
Coding: 0A194012242401080000
Shop #: WSC 02391 785 00200
ASAM Dataset: EV_ECM20TDI01104L906021FE 002007
ROD: EV_ECM20TDI01104L906021FE.rod
VCID: 6DD6519BBC82595686-8038


2 Faults Found:
11901 - Manifold Pressure / Boost Sensor (G31)
P0236 00 [032] - Implausible Signal
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:


19226 - Particulate Trap Bank 1
P2002 00 [096] - Efficiency Below Threshold
Intermittent - Not Confirmed - Tested Since Memory

And one more question. Is it software version V6DD6519BBC82595686-8038?

[internautul]

Same p2002(008194) dtc on me, what to do ? Egr cooler or egr problem ? No regen allowed.