Audi Q7 VCDS errors

**creatorul** · 07-07-2010,06:52 PM

Hello,

I have recently purchased a VCDS cable and made a small test on my car (Audi Q7 3.0 TDI 171 kw). Tried to reset them and these are the error that came back:

Code:

-------------------------------------------------------------------------------
Address 01: Engine        Labels: Redir Fail!
   Part No SW: 4L0 910 401 K    HW: 4L0 907 401 
   Component: 3.0L V6TDI  G001AG  0030  
   Revision: --H03---    Serial number:               
   Coding: 0011775
   Shop #: WSC 10108 599 69903
2 Faults Found:
005658 - Glowplug for Cylinder 1 (Q10): Open Circuit 
               P161A - 001 - Upper Limit Exceeded
             Freeze Frame:
                    Fault Status: 01110001
                    Fault Priority: 0
                    Fault Frequency: 1
                    Mileage: 78800 km
                    Time Indication: 0
                    Date: 2010.07.01
                    Time: 15:48:14
             Freeze Frame:
                    RPM: 924 /min
                    Torque: 128.7 Nm
                    Speed: 4.5 km/h
                    Duty Cycle: 6.0 %
                    Voltage: 14.36 V
                    Duty Cycle: 23.3 %
                    Temperature: 27.0°C
012597 - Intake Manifold Runner Control: Lower Stop not Reached 
               P3135 - 001 - Upper Limit Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00100001
                    Fault Priority: 0
                    Fault Frequency: 1
                    Mileage: 78892 km
                    Time Indication: 0
                    Date: 2010.07.03
                    Time: 20:20:14
             Freeze Frame:
                    RPM: 0 /min
                    Torque: 0.0 Nm
                    Speed: 0.0 km/h
                    Voltage: 12.39 V
                    Duty Cycle: 88.8 %
                    Duty Cycle: 20.5 %
                    Duty Cycle: 20.5 %
Readiness: 0 0 0 0 0 
 
-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: None
   Part No SW: 4L0 910 043     HW: 4L0 820 043 F
   Component: KLIMABETAETIGUNGH05 0040  
   Revision: 00---008    Serial number: 00000000027269
   Coding: 0133142
   Shop #: WSC 31414 790 00001
1 Fault Found:
02508 - Temperature Sensor for Refrigerant (G454) 
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 18
                    Mileage: 70164 km
                    Time Indication: 0
                    Date: 2009.07.20
                    Time: 12:16:23

-------------------------------------------------------------------------------
Address 28: HVAC, Rear        Labels: None
   Part No SW: 4L0 910 158     HW: 4L0 919 158 C
   Component: KLIMABETAETIGUNGH05 0040  
   Revision: 00---006    Serial number: 00000000026814
   Coding: 0000006
   Shop #: WSC 31414 790 00001
1 Fault Found:
01320 - Control Module for Climatronic (J255) 
            013 - Check DTC Memory
             Freeze Frame:
                    Fault Status: 01101101
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 231
                    Mileage: 78783 km
                    Time Indication: 0
                    Date: 2010.06.30
                    Time: 17:43:30
             Freeze Frame:
                        ON 
-------------------------------------------------------------------------------
Address 34: Level Control        Labels: None
   Part No SW: 4L0 910 553 A    HW: 4L0 907 553 
   Component: LUFTFDR.-CDC    H03 7470  
   Revision: --H03001    Serial number: 15.1528-0082.2
   Coding: 0015520
   Shop #: WSC 31414 790 00001
2 Faults Found:
01577 - Turn-Off due to Over-Temp 
            001 - Upper Limit Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00100001
                    Fault Priority: 6
                    Fault Frequency: 2
                    Reset counter: 16
                    Mileage: 78784 km
                    Time Indication: 0
                    Date: 2010.06.30
                    Time: 18:01:04
             Freeze Frame:
                    Error Code: 68
03004 - Load Level Button (E539)  
            012 - Electrical Fault in Circuit - Intermittent
             Freeze Frame:
                    Fault Status: 00101100
                    Fault Priority: 4
                    Fault Frequency: 2
                    Reset counter: 28
                    Mileage: 78853 km
                    Time Indication: 0
                    Date: 2010.07.02
                    Time: 23:02:08
             Freeze Frame:
                    Error Code: 156

I have already purchased another coil to replace the broken one (assuming this error is correct).
I'm not sure about the others. I have no error signaled on the dashboard. The only problem is with the trunk lowering button that should use the leveling system to lower the trunk.
Please let me know your expert opinions.

Thanks,
Dan

**TheMatador** · 15-07-2010,09:36 PM

Hi Dan - welcome to the forum

I don't know about all the faults. I get the odd "open circuit" on the plugs from time to time. I never know about it until I do a scan. I asked the Audi guy at the last service about them and he said its very rare they have to change the plugs - he also said it was a good thing too as it was a big job. Apparently the monitoring system is very sensitive to small variations in resistance so it could be a bit of corrosion somewhere, a problem with the harness or a poor connection with the plug.

I have the same Intake Manifold Runner fault and that looks like it could be a bit more of an issue. Engine light came on today and its the only fault that doesn't clear.

Let us know if you find out any more.

**a8 tech** · 15-07-2010,09:44 PM

left bank manifold motor and runner. ball socket wears causing implausible signals for open and closed position.
replace the manifold and motor on the bank affected

**TheMatador** · 15-07-2010,09:58 PM

Oh dear, I feared as much. What's the likely cost?

**a8 tech** · 15-07-2010,10:07 PM

£1200 per bank

**TheMatador** · 15-07-2010,10:33 PM

Ouch. So much for German engineering - the car's only 3.5 yrs old.

**creatorul** · 17-07-2010,07:39 PM

Originally Posted by a8 tech

left bank manifold motor and runner. ball socket wears causing implausible signals for open and closed position.
replace the manifold and motor on the bank affected

Can you tell which one is broken from the error code?
I'm asking because I change the on from the passenger side both actuator and the plastic thing and it was expensive I must say.
I have cleared that error last week and it didn't appear again so far. Is there anything I can do to make it live longer? Like spraying the actuator mobile parts with some WD-40 ?

Thank you so much

**TheMatador** · 19-07-2010,04:13 PM

You should be able to tell from the VCDS scan. Here's my error - I've got the full HEX-CAN to USB cable:
004120 - Intake Manifold Runner (Bank 2): Lower limit not reached
P1018 - 001 - Upper Limit Exceeded

It does show as Bank 2. I guess yours would be Bank 1. Looks like the valves in the runners are the swirl flaps. I've posted some info in this thread:

https://www.vwaudiforum.co.uk/forum/s...323#post539323

How much did it cost you (DIY or dealer)? Do you notice the car running any different?

**creatorul** · 19-07-2010,09:39 PM

Originally Posted by TheMatador

You should be able to tell from the VCDS scan. Here's my error - I've got the full HEX-CAN to USB cable:
004120 - Intake Manifold Runner (Bank 2): Lower limit not reached
P1018 - 001 - Upper Limit Exceeded

It does show as Bank 2. I guess yours would be Bank 1. Looks like the valves in the runners are the swirl flaps. I've posted some info in this thread:

https://www.vwaudiforum.co.uk/forum/s...323#post539323

How much did it cost you (DIY or dealer)? Do you notice the car running any different?

The actuator + the plastic valves (this is what u need) was around $600 but I didnt got it from the dealer since it would have been more expensive I suppose (including mounting).
Yes the car was slightly better and the fuel consumption got better also.
It seems that this is a general failture piece on 3.0 TDI engines .. too bad, the car is excellent on all other aspects.

Edit:
According to your PDF attached on the other post you will need to change the intake manifold bottom part(the one with the swirl flaps - it has a triangular shape) + intake manifold flap motor. You will need to change both because it won't work otherwise. I have tried to change the motor only and the error was still appearing on both dashboard and VCDS.

What you can do before going to the car service is try to spray the motor mobile part (that small arm that moves the swirl flaps) with WD-40 and some lubricant spray afterwards. Maybe it is stuck there because of corrosion or something. Then use the car for a while, reset the errors with VCDS and see if you get them back.
If you get them back you will have to change them unfortunately.

**TheMatador** · 20-07-2010,12:41 PM

Yes, I'll definitely try giving it a spray. The engine light has actually gone off without me doing anything. Here's hoping a bit of preventative tlc will make it last a bit longer.

Did you do the work yourself? Looks like a fairly major job..