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View Full Version : uh oh!! Where is the EGR under the hood? Found a fault.



Audime
06-05-2013, 08:30 PM
Hello,

My Q7 decided to Limp home today with the glow plug light flashing.

I plugged in VCDS, and this is what I found...

Address 01: Engine (CAS) Labels: Redir Fail!
Part No SW: 4L1 910 401 D HW: 4L0 907 401 A
Component: 3.0TDI EDC17G100AG 0080
Revision: --H01--- Serial number:
Coding: 0121002C190F0168
Shop #: WSC 00182 210 83141
VCID: 244DCEC7E74C3338654

1 Fault Found:
001027 - EGR Valve (N18)
P0403 - 000 - Malfunction - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 2
Fault Frequency: 2
Mileage: 83623 km
Time Indication: 0
Date: 2013.05.05
Time: 13:31:24

Freeze Frame:
RPM: 1596 /min
Speed: 65.0 km/h
Load: 10.6 %
Duty Cycle: 41.0 %
Lambda: 47.7 %
Mass Air / Rev.: 282.0 mg/str
Temperature: 91.8°C

Readiness: 0 0 0 0 0

I recently changed a EGR valve in My A6 (very simple), but looking under the hood of this Q7 has me very lost!!

I want to change the EGR valve, but where the hell is it please?? http://forums.audiworld.com/images/smilies/biggrin.gif Picture would be fantastic! Cheers!

Guest 2
06-05-2013, 08:31 PM
I would be a good start if you told us what engine you have?

Audime
06-05-2013, 08:32 PM
3.0l tdi (4l) v6.

Audime
06-05-2013, 08:34 PM
I cleared the code a few times now. Sure enough it comes back with the same fault :D

super-dan
06-05-2013, 09:46 PM
Check the VAC line on the N18? I lost all boost (allbeit on a 1.9 tdi) and the N18 vac hose had popped off.

http://i77.photobucket.com/albums/j50/Lynchie_1/IMG_0866_zpsff2ca126.jpg (http://s77.photobucket.com/user/Lynchie_1/media/IMG_0866_zpsff2ca126.jpg.html)

Audime
06-05-2013, 09:51 PM
Check the VAC line on the N18? I lost all boost (allbeit on a 1.9 tdi) and the N18 vac hose had popped off.

Hi thanks Dan, but I'm not sure where to start looking. Half my issue finding the egr in the first instance! :D
seems everything is just so tightly packed, it's amazing how anything breath!

Audime
06-05-2013, 09:53 PM
Sorry, but that doesn't look anything like my hood inards! :p
ill have a poke about in the meantime for any piping which may have popped off though.

super-dan
06-05-2013, 09:55 PM
Sorry, but that doesn't look anything like my hood inards! :p
ill have a poke about in the meantime for any piping which may have popped off though.

Good luck!!