uh oh!! Where is the EGR under the hood? Found a fault.

[Audime]

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?? Picture would be fantastic! Cheers!

[Guest 2]

I would be a good start if you told us what engine you have?

[Audime]

3.0l tdi (4l) v6.

[Audime]

I cleared the code a few times now. Sure enough it comes back with the same fault

[super-dan]

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.

[Audime]

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!
seems everything is just so tightly packed, it's amazing how anything breath!

[Audime]

Sorry, but that doesn't look anything like my hood inards!
ill have a poke about in the meantime for any piping which may have popped off though.

[super-dan]

Sorry, but that doesn't look anything like my hood inards!
ill have a poke about in the meantime for any piping which may have popped off though.

Good luck!!