P0674 - Cylinder 4 Glow Plug Circuit Fault

[c6-gb]

Hoping somone can help with this one, Intermittently keep getting the EML on my Audi A6 C6 (2009) Avant, 2.7TDI

Having done a quick scan on VDCS under engine i found the below, first thoughts were to change the glow plug(but im unsure how much work that involves or the location of cil 4).

Can anyone give me any ideas what to try, on a petrol car you would be able to swap the ing coils ect to rule that out gussing i carn do that on a derv

Address 01: Engine Labels: None
Control Module Part Number: 4F7 910 401 K HW: 4F0 907 401 E
Component and/or Version: 2.7TDI EDC17G000SG 0090
Software Coding: 010D002C18070128
Work Shop Code: WSC 18432 167 674088
VCID: 2B0307B1EF06CE83F60-807F
1 Fault Found

001652 - Cylinder 4 Glow Plug Circuit (Q13)
P0674 - 000 - Electrical Fault
Freeze Frame
Fault Status: 01100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 176771 km
Time Indication: 0
Date: 2021.09.03
Time: 18:47:22

Freeze Frame
RPM: 0 /min
Speed: 0.0 km/h
Voltage: 11.48 V
Temperature: 15.3°C
Lambda: 13.3 %
Temperature: 18.0°C

 

[NHN]

Swap plugs between cylinders, see if it moves.

 

[c6-gb]

Correct to assume the glowplugs are as below image from a v6 3.0tdi ?