Hi there, we currently have a 2007 Audi Q7 3.0 TDI in at our workshop. It has come in after the customer has had the issue
where, they were driving at 100KM/H up a hill and the glow plug light started flashing, and from what the customer said
the vehicle then went into limp mode - Only would go about 40KM/H. So only having the glow plug light to
go on, the customer decided to change all of the glow plugs with a cheap eBay variant. In the process of changing the glow-
plugs, the customer removed the common rail off of the engine to gain better access.
After the customer had refitted the glow plugs and the common rail, the vehicle would not start. Upon not starting the
customer got roadside assist to come out to see if they could do anything. They scanned the vehicle and it returned these codes
from the ECU:
00565 Turbo/super charger boost sensor A Circ. - Sporadic
001 - Upper limit exceeded
01025 Exhaust gas recirc. Flow insufficient detected - Sporadic
002 - Lower limit exceeded
04501 Fuel pressure regulator valve. Open circuit/short circuit to ground
Sporadic 001 - Upper limit exceeded
Of course the roadside assistant cleared all of the codes so there was no freeze frame data to go on. So with the information that
I had to go on (did not know at this point the common rail had been taken off at this point), I started with the basics, checked all
fuses and fuseable links, ensured nothing was missing from any of the fuse boxes. I checked there was power getting to terminal 30 of
the fuel pump relay, and the glow plug relay both were getting battery voltage. At this point I decided to get genuine glow plugs and fit them,
just to eliminate the eBay plugs causing any issues. Which obviously has not magically resolved the issue haha, but i figured it was worth a try.
So when scanning the vehicle now there are no fault codes present in the ECU, and codes that are in any other of the vehicles modules aren't really
giving me anything to go on. So I had to start further diagnosis, i checked for current draw on the glow plugs under ignition and cranking conditions,
Neither time did i get any current draw, although this could be possible due to a high ambient temp. If i perform an output test to the glow plug circuit
i will get current draw, so the circuit is working. At this point i rang the customer once again to confirm what work had been done to the vehicle
This is when they told me they had taken the common rail off to do the glow plugs, they also stated that if they sprayed some starting solvent into
the vehicles intake they could get it to run for a short period of time.
So now armed with that information i start looking for a fueling issue, i performed a current draw test on the injectors under cranking conditions, and there
zero current draw, i also checked the fuel metering valve with an output test and it was operating correctly. I ran the in tank fuel pump for about 3 to 5 mins
by bridging out the relay, i did this to ensure sufficient fuel pressure was getting to the fuel filter and high pressure fuel pump, as well as cranking the vehicle
and checked the fuel line for any air bubbles. To be 100% sure the tank pump was working i pulled the supply hose off the inlet of the high pressure pump, and diesel was flowing fine.
Due to the fact the glow plugs aren't operating at all, and neither are the injectors it seems to me like either a basic setting or an immobilizer issue has come into play.
Either that or I'm missing something obvious haha. Hopefully someone might be able to give something, to go on or just be able to bounce ideas around.
Thanks heaps! Sorry of I've missed anything this is my first time posting on here.
where, they were driving at 100KM/H up a hill and the glow plug light started flashing, and from what the customer said
the vehicle then went into limp mode - Only would go about 40KM/H. So only having the glow plug light to
go on, the customer decided to change all of the glow plugs with a cheap eBay variant. In the process of changing the glow-
plugs, the customer removed the common rail off of the engine to gain better access.
After the customer had refitted the glow plugs and the common rail, the vehicle would not start. Upon not starting the
customer got roadside assist to come out to see if they could do anything. They scanned the vehicle and it returned these codes
from the ECU:
00565 Turbo/super charger boost sensor A Circ. - Sporadic
001 - Upper limit exceeded
01025 Exhaust gas recirc. Flow insufficient detected - Sporadic
002 - Lower limit exceeded
04501 Fuel pressure regulator valve. Open circuit/short circuit to ground
Sporadic 001 - Upper limit exceeded
Of course the roadside assistant cleared all of the codes so there was no freeze frame data to go on. So with the information that
I had to go on (did not know at this point the common rail had been taken off at this point), I started with the basics, checked all
fuses and fuseable links, ensured nothing was missing from any of the fuse boxes. I checked there was power getting to terminal 30 of
the fuel pump relay, and the glow plug relay both were getting battery voltage. At this point I decided to get genuine glow plugs and fit them,
just to eliminate the eBay plugs causing any issues. Which obviously has not magically resolved the issue haha, but i figured it was worth a try.
So when scanning the vehicle now there are no fault codes present in the ECU, and codes that are in any other of the vehicles modules aren't really
giving me anything to go on. So I had to start further diagnosis, i checked for current draw on the glow plugs under ignition and cranking conditions,
Neither time did i get any current draw, although this could be possible due to a high ambient temp. If i perform an output test to the glow plug circuit
i will get current draw, so the circuit is working. At this point i rang the customer once again to confirm what work had been done to the vehicle
This is when they told me they had taken the common rail off to do the glow plugs, they also stated that if they sprayed some starting solvent into
the vehicles intake they could get it to run for a short period of time.
So now armed with that information i start looking for a fueling issue, i performed a current draw test on the injectors under cranking conditions, and there
zero current draw, i also checked the fuel metering valve with an output test and it was operating correctly. I ran the in tank fuel pump for about 3 to 5 mins
by bridging out the relay, i did this to ensure sufficient fuel pressure was getting to the fuel filter and high pressure fuel pump, as well as cranking the vehicle
and checked the fuel line for any air bubbles. To be 100% sure the tank pump was working i pulled the supply hose off the inlet of the high pressure pump, and diesel was flowing fine.
Due to the fact the glow plugs aren't operating at all, and neither are the injectors it seems to me like either a basic setting or an immobilizer issue has come into play.
Either that or I'm missing something obvious haha. Hopefully someone might be able to give something, to go on or just be able to bounce ideas around.
Thanks heaps! Sorry of I've missed anything this is my first time posting on here.
Code:
Thursday,05,March,2020,15:56:19:36219
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 19.6.2.2 (x64) HEX-V2 CB: 0.4508.4
Data version: 20200210 DS308.0
www.Ross-Tech.com
Dealer/Shop Name: Clisby Auto Electrical
VIN: WAUZZZ4L47D100253 License Plate:
Chassis Type: 4L (4L0)
Scan: 01 02 03 05 07 08 09 0E 15 16 17 18 19 1E 37 42 46 47 4F 52
56 61 62 67 6C 6D 6F 72 76 77
VIN: WAUZZZ4L47D100253 Mileage: 200910km-124839miles
00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
05-Acc/Start Auth. -- Status: OK 0000
07-Control Head -- Status: Malfunction 0010
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: OK 0000
0E-Media Player 1 -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
18-Aux. Heat -- Status: Malfunction 0010
19-CAN Gateway -- Status: Malfunction 0010
1E-Media Player 2 -- Status: OK 0000
37-Navigation -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: OK 0000
4F-Centr. Electr. II -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: OK 0000
61-Battery Regul. -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
67-Voice Control -- Status: OK 0000
6C-Back-up Cam. -- Status: Malfunction 0010
6D-Trunk Elect. -- Status: OK 0000
6F-Centr. Conv. II -- Status: Malfunction 0010
72-Door, Rear Right -- Status: OK 0000
76-Park Assist -- Status: OK 0000
77-Telephone -- Status: Cannot be reached 1100
-------------------------------------------------------------------------------
Address 01: Engine Labels: 059-907-401-ASB.clb
Part No SW: 4L0 910 401 M HW: 4L0 907 401
Component: 3.0L V6TDI G000AG 0030
Revision: --H04--- Serial number:
Coding: 0011779
Shop #: WSC 80093 222 69422
VCID: 2C0105436A03E0D745D-8078
No fault code found.
Readiness: 0 0 1 1 1
-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 09D-927-750.clb
Part No SW: 09D 927 750 FS HW: 09D 927 750 FS
Component: AL 750 6A 1000
Revision: 00H64000 Serial number:
Coding: 0000504
Shop #: WSC 31414 790 00001
VCID: 04518DE3A213C897EDD-8050
No fault code found.
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels:. 4L0-910-517-V1.clb
Part No SW: 4L0 910 517 A HW: 4L0 614 517 A
Component: ESP ALLRAD MK25E1 0130
Revision: 00H22001
Coding: 0033937
Shop #: WSC 31414 790 00001
VCID: 2809F9537EFBCCF7A15-807C
2 Faults Found:
00668 - Supply Voltage Terminal 30
002 - Lower Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 2
Fault Frequency: 1
Reset counter: 98
Mileage: 200913 km
Time Indication: 0
Date: 2020.03.02
Time: 15:58:45
Freeze Frame:
Count: 0
Count: 6149
Count: 128
Count: 31232
01826 - Sensor for Steering Angle (G85); Supply Voltage Terminal 30
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 98
Mileage: 200913 km
Time Indication: 0
Date: 2020.03.02
Time: 15:56:33
Freeze Frame:
Count: 0
Count: 4357
Count: 297
Count: 40704
-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. Labels:. 4F0-910-852.clb
Part No SW: 4F0 910 852 HW: 4F0 905 852 B
Component: FBSAUDIC6 ELV H31 0220
Revision: 31050601 Serial number: 10601100724493
Coding: 0000147
Shop #: WSC 31414 790 00001
VCID: 6393AE7F475D6FAFB47-8036
Subsystem 1 - Part No: 4F0 910 131 A
Component: FBSAUDIC6 EZS H45 0080
Subsystem 2 - Part No: 4F0 910 220
Component: FBSAUDIC6 IDG H01 0040
No fault code found.
-------------------------------------------------------------------------------
Address 07: Control Head Labels: 4L0-910-7xx-07-H.clb
Part No SW: 4L0 910 731 D HW: 4E0 035 729 A
Component: Interfacebox H43 3450
Revision: 00000000 Serial number: 387DV077543533
Coding: 0002002
Shop #: WSC 31414 790 00001
VCID: 290FFC5765F1F5FFBEB-807C
Subsystem 1 - Part No: 4L0 910 609
Component: E0380 BedienteilH01 0060
Subsystem 2 - Serial number: 00000000717268
Subsystem 3 - Serial number: 0129.03.070000000100010417ÿ
Subsystem 4 - Serial number: 010417ÿ
1 Fault Found:
00003 - Control Module
005 - No or Incorrect Basic Setting / Adaptation
Freeze Frame:
Fault Status: 01100101
Fault Priority: 5
Fault Frequency: 1
Reset counter: 98
Mileage: 200913 km
Time Indication: 0
Date: 2020.03.04
Time: 13:04:06
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: None
Part No SW: 4L0 910 043 HW: 4L0 820 043 E
Component: KLIMABETAETIGUNGH05 0060
Revision: 00---012 Serial number: 00000000109888
Coding: 0001110
Shop #: WSC 31414 790 00001
VCID: 619FA4775D417DBFA6B-8034
1 Fault Found:
00446 - Function Limitation due to Under-Voltage
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 6
Fault Frequency: 2
Reset counter: 138
Mileage: 200912 km
Time Indication: 0
Date: 2006.11.23
Time: 12:06:59
Freeze Frame:
Voltage: 10.00 V
-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: 4F0-910-279.lbl
Part No SW: 4F0 910 279 K HW: 4F0 907 279
Component: ILM Fahrer H17 0240
Revision: 00000000 Serial number: 4F0907279
Coding: 0000101
Shop #: WSC 31414 790 00001
VCID: 313F14374D218D3F76B-8064
Subsystem 1 - Part No: 4L2 910 113 Labels: 1KX-955-119.CLB
Component: Wischer AU716 H08 0080
Coding: 00064792
Shop #: WSC 31414
Subsystem 2 - Part No: 4E0 910 557 A Labels: 8K0-955-559.CLB
Component: REGENLICHTSENSORH13 0090
Coding: 00150059
Shop #: WSC 31414
No fault code found.
-------------------------------------------------------------------------------
Address 0E: Media Player 1 Labels: 4E0-910-111.lbl
Part No SW: 4L0 910 110 A HW: 4L0 035 110
Component: MP3-Changer H43 0350
Revision: 00043000 Serial number: AUZ5ZBG1042885
Shop #: WSC 00000 000 00000
VCID: 1D67D88721B9195FC23-8048
No fault code found.
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 4L0-910-655.lbl
Part No SW: 4L0 910 655 B HW: 4L0 959 655
Component: 30 AIRBAG AUDI8RH39 0120
Revision: 06H39000 Serial number: 0037GD09AFPC
Coding: 0013104
Shop #: WSC 31414 790 00001
VCID: 2C0105436A03E0D745D-8078
Subsystem 1 - Serial number: 6332QSME26763543B
Subsystem 2 - Serial number: 6342QSME254C0F4FX
Subsystem 3 - Serial number: 6352QSME240D15114
Subsystem 4 - Serial number: 6362QSME27023767C
Subsystem 5 - Serial number: 63734SME25572225V
Subsystem 6 - Serial number: 63834SME25570C392
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 4F0-910-549.lbl
Part No SW: 4F0 910 549 HW: 4F0 953 549 A
Component: Lenksäulenmodul H08 0230
Revision: 00H08000 Serial number: 90026070850006
Coding: 0102142
Shop #: WSC 31414 790 00001
VCID: 6695B76BB46F1A87539-8032
Subsystem 1 - Part No: XXXXXXXXXXX
Component: Lenkradmodul H07 0090
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 4L0-910-xxx-17.lbl
Part No SW: 4F0 910 930 C HW: 4L0 920 930 H
Component: KOMBIINSTR. M73 H18 0170
Revision: 00400000 Serial number: 5HG56C947
Coding: 2561748
Shop #: WSC 04577 067 57207
VCID: 2313EE7F07DD2FAFF47-8076
No fault code found.
-------------------------------------------------------------------------------
Address 18: Aux. Heat Labels: 4L0-910-105.lbl
Part No SW: 4L0 910 105 HW: 4L0 815 071 D
Component: Heizgeraet H08 0080
Revision: 0000000C Serial number: 00000009014264
Coding: 0000001
Shop #: WSC 31414 790 00001
VCID: 6099A173564B74B7A95-8034
1 Fault Found:
01413 - Dosing/Metering Pump (V54)
007 - Short to Ground
-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels:. 4L0-910-468.clb
Part No SW: 4L0 910 468 HW: 4L0 907 468
Component: J533__Gateway H06 0040
Revision: 00H06000 Serial number: 0900B0733083F9
Coding: F55BFE57707202
Shop #: WSC 22080 822 86671
VCID: 6C81C543AA8320D705D-8038
1 Fault Found:
01303 - Telephone Transceiver (R36)
004 - No Signal/Communication
Freeze Frame:
Fault Status: 01100100
Fault Priority: 3
Fault Frequency: 1
Reset counter: 98
Mileage: 200913 km
Time Indication: 0
Date: 2020.03.04
Time: 13:05:07
-------------------------------------------------------------------------------
Address 1E: Media Player 2 (R192) Labels:. 4E0-035-785.lbl
Part No SW: 4E0 035 785 HW: 4E0 035 785
Component: SG ext.Player H09 0170
Revision: 00000000
VCID: 6597B0674569119F5A3-8030
No fault code found.
-------------------------------------------------------------------------------
Address 37: Navigation Labels: 4E0-910-88x-37.lbl
Part No SW: 4E0 910 888 J HW: 4E0 919 887 M
Component: MNS ECE H49 1040
Revision: 00000000 Serial number: 364D.077676258
Shop #: WSC 22080 822 86671
VCID: 35372027B949A11F2A3-8060
No fault code found.
-------------------------------------------------------------------------------
Address 42: Door Elect, Driver Labels: 4L0-910-793-42.lbl
Part No SW: 4L0 910 793 C HW: 4L0 959 793 C
Component: TSG FA H21 0050
Coding: 0000539
Shop #: WSC 31414 790 00001
VCID: 30391133462B8437795-8064
No fault code found.
-------------------------------------------------------------------------------
Address 46: Central Conv. Labels:. 4L0-910-289.lbl
Part No SW: 4L0 910 289 F HW: 4L0 907 289 C
Component: Komfortgeraet H07 0040
Revision: 0040 --- Serial number: 01038157280000
Coding: 7602309
Shop #: WSC 31850 812 66137
VCID: 33331E3FB73DBF2F047-8066
No fault code found.
-------------------------------------------------------------------------------
Address 47: Sound System (J525) Labels: Redir Fail!
Part No SW: 4L0 910 223 E HW: 4L0 035 223 C
Component: DSP-AU716-RD H07 0130
Revision: 05S00000
Coding: 030100
Shop #: WSC 31414 790 00001
VCID: 2615F76B78EFDA87939-8072
No fault code found.
-------------------------------------------------------------------------------
Address 4F: Centr. Electr. II Labels: 4F0-910-280.lbl
Part No SW: 4F0 910 280 HW: 4F0 907 280
Component: ILM Beifahrer H10 0080
Revision: Serial number: 00000000245721
Coding: 0011001
Shop #: WSC 31414 790 00001
VCID: 5EE59F8B6C3F42479B9-800A
No fault code found.
-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. Labels: 4L0-910-793-52.lbl
Part No SW: 4L0 910 792 C HW: 4L0 959 792 C
Component: TSG BF H21 0050
Coding: 0000539
Shop #: WSC 31414 790 00001
VCID: 2F3B124F5B159BCF60F-807A
No fault code found.
-------------------------------------------------------------------------------
Address 56: Radio Labels: 4E0-910-541.lbl
Part No SW: 4E0 910 541 Q HW: 4E0 035 541 S
Component: TUNER EU/US/RDW H42 0620
Revision: 00000000 Serial number: 388C-077615844
Coding: 0000001
Shop #: WSC 31414 790 00001
VCID: 2E050F4B5C1F92C76B9-807A
No fault code found.
-------------------------------------------------------------------------------
Address 61: Battery Regul. Labels: 4F0-910-181.lbl
Part No SW: 4L0 910 181 HW: 4L0 915 181
Component: J0644 BEM H12 0530
Revision: -------- Serial number: 00000000016769
Shop #: WSC 31850 812 66137
VCID: 6491AD63425368974DD-8030
Subsystem 1 - Part No: 4F0 915 105 D
Component: von VA0 340327R0W2
Coding: 344630393135313035442056413033343033323752305732
Shop #: WSC 60589 001 1048576
2 Faults Found:
02256 - Quiescent Current
001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 7
Fault Frequency: 2
Reset counter: 138
Mileage: 200913 km
Time Indication: 0
Date: 2020.03.04
Time: 23:30:48
03041 - Energy Management Active
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 7
Fault Frequency: 1
Reset counter: 255
Mileage: 200912 km
Time Indication: 0
Date: 2006.11.23
Time: 13:23:29
-------------------------------------------------------------------------------
Address 62: Door, Rear Left Labels: 4L0-910-795.lbl
Part No SW: 4L0 910 795 C HW: 4L0 959 795 C
Component: TSG HL H21 0050
Coding: 0000002
Shop #: WSC 31414 790 00001
VCID: 323D1B3B4827B6270F1-8066
No fault code found.
-------------------------------------------------------------------------------
Address 67: Voice Control Labels: 4E0-910-75x-67.lbl
Part No SW: 4E0 910 754 S HW: 4E0 035 753 A
Component: SDS 3502 UK H45 0630
Revision: 00000000 Serial number: 00000703090411
Shop #: WSC 12336 024 394758
VCID: 3635272BA44FAA07239-8062
No fault code found.
-------------------------------------------------------------------------------
Address 6C: Back-up Cam. Labels: 4L0-910-441.clb
Part No SW: 4L0 910 441 A HW: 4L0 907 441 A
Component: J772__Rearview 0050
Revision: --H12--- Serial number: 525PA8-J7340KA
Coding: 1021101
Shop #: WSC 31414 790 00001
VCID: 2411ED6302D328978DD-8070
1 Fault Found:
00778 - Steering Angle Sensor (G85)
013 - Check DTC Memory
Freeze Frame:
Fault Status: 01101101
Fault Priority: 3
Fault Frequency: 1
Reset counter: 98
Mileage: 200912 km
Time Indication: 0
Date: 2006.11.23
Time: 17:37:32
Freeze Frame:
Term 15 On
Reverse OFF
Count: 3
-------------------------------------------------------------------------------
Address 6D: Trunk Elect. Labels: None
Part No SW: 4L0 910 945 HW: 4L0 827 851 B
Component: ValeoHeckdeckel H21 0280
Revision: --H21001 Serial number: E5030000B
Shop #: WSC 98765 666 38354
VCID: 6C81C543AA8320D705D-8038
Subsystem 1 - Part No: 4L0 910 946
Component: ValeoHeckdeckel H21 0280
Subsystem 2 - Serial number: E5030100B
Subsystem 3 - Serial number: RD05.04.07--H21001001A0151ÿ
Subsystem 4 - Serial number: 1A0151ÿ
No fault code found.
-------------------------------------------------------------------------------
Address 6F: Centr. Conv. II Labels:. 4L0-910-290.lbl
Part No SW: 4L0 910 290 A HW: 4L0 907 290 A
Component: ILM HINTEN 2 H05 0060
Revision: AAH05061 Serial number: 002625927-----
Coding: 0003591
Shop #: WSC 31414 790 00001
VCID: 2615F76B74EFDA87939-8072
Subsystem 1 - Part No: 4L0 910 591
Component: J_245_EE15_SKB09H10 0180
Subsystem 2 - Part No: 4L0 910 591
Component: J_394_EE15_SKB09H10 0180
Subsystem 3 - Part No: 4L0 910 591
Component: J_392_EE15_SKB09H10 0180
1 Fault Found:
02915 - Sensor 2 for Trunk/Hatch Closed (G526)
010 - Open or Short to Plus
Freeze Frame:
Fault Status: 01101010
Fault Priority: 1
Fault Frequency: 2
Reset counter: 98
Mileage: 200913 km
Time Indication: 0
Date: 2020.03.02
Time: 15:56:32
-------------------------------------------------------------------------------
Address 72: Door, Rear Right Labels: 4L0-910-795.lbl
Part No SW: 4L0 910 795 C HW: 4L0 959 794 C
Component: TSG HR H21 0050
Coding: 0000002
Shop #: WSC 31414 790 00001
VCID: 323D1B3B4827B6270F1-8066
No fault code found.
-------------------------------------------------------------------------------
Address 76: Park Assist Labels: 4Fx-910-283.lbl
Part No SW: 4F0 910 283 G HW: 4F0 919 283 G
Component: Parkhilfe 8-Kan H12 0060
Revision: 00H12000 Serial number: 06330707802696
Coding: 0221046
Shop #: WSC 31414 790 00001
VCID: 2809F9537EFBCCF7A15-807C
No fault code found.
-------------------------------------------------------------------------------
Address 77: Telephone
Cannot be reached
End----(Elapsed Time: 02:02, VBatt start/end: 11.9V/11.9V. VIgn 11.9V)-----