Ghost in the machine?

[Stuarta]

I have recently started to see a number of symptoms that may or may not (I hope) indicate a developing electrical problem.

First sign was that the stereo started switching itself on while I was driving. No hands anywhere near a button to do so - radio switches on. Not a big deal - by itself.

Then, yesterday, I was picking up a colleague to go to work and noticed that the seat-heating had switched itself on. At the same time, the ventilated seat function, had stopped working. For many, this would not be a big problem but it's only may and already 43 degrees here, so I'd rather get it fixed before summer!

I tried cycling the seat heaters on and off, re-selecting the ventilation and so on but to no avail. Luckily, I stopped for fuel shortly afterwards and the stop-start of the systems seems to have cleared the problem.

Haven't had a chance to vag-com it yet to see if there are any codes but am worried that it may be water ingress into connectors (although it hasn't properly rained here for over a year) or similar.

Anyone seen this before?



p.s. Friend has now nicknamed the car "Christine"!

[limoncello]

vagcom cristine asap

[Stuarta]

Here's what the Vag-COM doctor said - edited to shorten


VCDS Version: Release 11.11.3 (x64)
Data version: 20120401

Saturday,05,May,2012,16:15:46:40931

Chassis Type: 4E0
Scan: 01 02 03 05 06 07 08 09 11 31 15 16 17 19 1D 1E 25 28 34 36
37 38 42 46 47 4F 52 53 55 56 57 61 62 65 67 72 76 77

VIN: WAUMR44E95N005029 Mileage: 64830km/40283miles


01-Engine -- Status: Malfunction 0010

06-Seat Mem. Pass -- Status: Malfunction 0010
07-Control Head -- Status: Malfunction 0010

19-CAN Gateway -- Status: Malfunction 0010

47-Sound System -- Status: Malfunction 0010

53-Parking Brake -- Status: Malfunction 0010

61-Battery Regul. -- Status: Malfunction 0010

77-Telephone -- Status: Sporadic communication error 1000

-------------------------------------------------------------------------------
Address 01: Engine Labels: 07C-910-018-BHT1.lbl
Part No SW: 4E0 910 018 D HW: 4E0 906 018
Component: 6.0L W12/4V G ª0020
Revision: 00000000 Serial number: AUX3Z0D6346632
Coding: 0005773
Shop #: WSC 02313 785 00200
VCID: 2045F1BBF3D8C29

1 Fault Found:
19061 - Linear Oxygen (Lambda) Sensor B2 S1 Pump Current Trim Circuit
P2629 - 004 - Open - MIL ON
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 06: Seat Mem. Pass Labels: None
Part No SW: 4E0 910 760 C HW: 4E0 959 760
Component: Sitzmemory BFS H08 0060
Revision: 00000000 Serial number: 5DS 008 795-03
Coding: 4063840
Shop #: WSC 02313 785 00200
VCID: 234FFEB7E2CED91

4 Faults Found:
01883 - Lumbar Support Fore / Aft Adjustment Button (E336); Backward
003 - Mechanical Failure
Freeze Frame:
Fault Status: 01100011
Fault Priority: 4
Fault Frequency: 13
Reset counter: 161
Mileage: 64220 km
Time Indication: 0
Date: 2012.04.26
Time: 16:35:46

01882 - Lumbar Support Fore / Aft Adjustment Button (E336); Forward
003 - Mechanical Failure
Freeze Frame:
Fault Status: 01100011
Fault Priority: 4
Fault Frequency: 16
Reset counter: 161
Mileage: 64220 km
Time Indication: 0
Date: 2012.04.26
Time: 16:35:46

01881 - Lumbar Support Height Adjustment Button (E335); Down
003 - Mechanical Failure
Freeze Frame:
Fault Status: 01100011
Fault Priority: 4
Fault Frequency: 5
Reset counter: 161
Mileage: 64268 km
Time Indication: 0
Date: 2012.04.29
Time: 15:47:43

01880 - Lumbar Support Height Adjustment Button (E335); Up
003 - Mechanical Failure
Freeze Frame:
Fault Status: 01100011
Fault Priority: 4
Fault Frequency: 5
Reset counter: 161
Mileage: 64268 km
Time Indication: 0
Date: 2012.04.29
Time: 15:47:43


-------------------------------------------------------------------------------
Address 07: Control Head Labels: 4E0-910-7xx-07.lbl
Part No SW: 4E0 910 769 Q HW: 4E0 035 729 A
Component: Interfacebox H43 5570
Revision: 00000000 Serial number: 300GO047537484
Coding: 0000002
Shop #: WSC 00000 000 00000
VCID: 3A7123D37544B89

Part No: 4E0 910 609 C
Component: Bedienteil MMI H43 0100

2 Faults Found:
00003 - Control Module
005 - No or Incorrect Basic Setting / Adaptation
Freeze Frame:
Fault Status: 01100101
Fault Priority: 5
Fault Frequency: 1
Reset counter: 142
Mileage: 63917 km
Time Indication: 0
Date: 2012.04.18
Time: 20:09:47

02244 - Button in Control Head is Stuck
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 5
Fault Frequency: 1
Reset counter: 196
Mileage: 64309 km
Time Indication: 0
Date: 2012.04.30
Time: 08:16:49

Freeze Frame:
Bin. Bits: 00000100
Bin. Bits: 0000000
Bin. Bits: 000
-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 4E0-910-468.lbl
Part No SW: 4E0 910 468 HW: 4E0 907 468 A
Component: Gateway H07 0070
Revision: 07 Serial number: 160030463007EB
Coding: FCFFFFDD2B7504
Shop #: WSC 02313 785 00200
VCID: E5CB20AF2C7A671

1 Fault Found:
01303 - Telephone Transceiver (R36)
004 - No Signal/Communication
Freeze Frame:
Fault Status: 01100100
Fault Priority: 3
Fault Frequency: 104
Reset counter: 161
Mileage: 63917 km
Time Indication: 0
Date: 2012.04.18
Time: 20:05:37
----------------------------------------------------------
Address 47: Sound System Labels: 4E0-910-223.lbl
Part No SW: 4E0 910 223 P HW: 4E0 035 223 A
Component: DSP-Amp.-High H13 0460
Revision: PROD_01 Serial number: 00000000005168
Coding: 0000016
Shop #: WSC 02313 785 00200
VCID: 2A51139385E4089

1 Fault Found:
02095 - Component Protection Active
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 6
Fault Frequency: 1
Reset counter: 182
Mileage: 1048575 km
Time Indication: 0
-------------------------------------------------------------------------------
Address 53: Parking Brake Labels: 4E0-910-801.clb
Part No SW: 4E0 910 801 HW: 4E0 907 801
Component: EPB A01H019 H01 0190
Coding: 0000631
Shop #: WSC 76700 819 177785
VCID: DCBD054B1F30269

1 Fault Found:
02596 - Rear Brake Pads Worn
008 - Implausible Signal
Freeze Frame:
Fault Status: 01110000
Fault Priority: 6
Fault Frequency: 1
Reset counter: 140
Mileage: 1048575 km
Time Indication: 0

Freeze Frame:
Voltage: 9.83 V
Count: 61
-----------------------------------------------------------
Address 61: Battery Regul. Labels: 4E0-910-181.lbl
Part No SW: 4E0 910 181 C HW: 4E0 915 181 C
Component: J0644 BEM H11 0510
Revision: 00000000 Serial number: 00000000004595
Shop #: WSC 00020 767 61772
VCID: 2045F1BBF3D8C29

Subsystem 1 - Part No: 4E0 915 105 A
Component: von VA0 310219J0L5
Coding: 34453039313531303541205641303331303231394A304C35
Shop #: WSC 76700 819 177785

1 Fault Found:
02256 - Quiescent Current
001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 7
Fault Frequency: 6
Reset counter: 197
Mileage: 64241 km
Time Indication: 0
Date: 2012.04.27
Time: 02:15:37

End ---------------------------------------------------------------------

I'm kind of flummoxed how my parking brake pads think they've done more than 1,000,000 Kms (!) but figure that the stuck button in the control head and the dead lumbar support switch are the important parts. Don't get the component protection for the stereo though, what would that ) be caused by and b) limit in the system?

The telephone errors are caused by my replacement of the module with a mobridge unit.

Anyone got a noobs guide as to how to do the adaptation fot the control head? that's been needing done for a while.

[Stuarta]

Update - have checked all 4 lumbar support adjustments - all of them working normally!

MMI return button is somewhat sticky - suspect something may have been spilled on it - will need to figure out how to dismantle the centre console without breaking anything before going any further.

[PsYcHe]

Clear the codes down and see what comes back.. many codes can be stored for years beyond the initial problem.

MMI sticky buttons are common... I don't allow open drinks containers in the front cup holders usually as there's no water ingress protection on the MMI control panel! (poor design). Just work at it a bit and see if it loosens off.

[limoncello]

incorrect coding on Address 07: Control Head needs to be fixed while your there

[limoncello]

actually seems to be correctly coded

must be the adaptation

theres only one in the rosstech wiki

Adaptation
Channel 012: Telephone Type

0 = No Telephone
1 = Fixed Telephone installed (PR-9ZJ)
2 = Cell Phone Preparation OR Bluetooth Phone installed (PR-9ZG/9ZW)
4 = Telematics installed (PR-9ZS)

[limoncello]

did you just do an MMi update? from what version?

[Stuarta]

Ok, here goes -

All codes were cleared a week ago when I finally finished the job of getting the air suspension working again, so are current.

The only MMI button that seems to be a bit sticky is the return one - been working on it for a bit but am off the next few days, so can do it properly.

Telematics was showing a fault even before I removed the module to replace with the mobridge unit. Question is, when the OEM module is replaced by a third party one, which code is set in the adaptation?

MMI was upgraded recently - to 5570 from 5150. Only disk 3 was used as no factory bluetooth - mobridge unit was "hidden" while update was installed.

The "incorrect adaptation" error on the control head has been present since I bought the car (from the only dealer here) 6 months ago!

Am also wondering now about the battery control module - had an electrical fault a few weeks ago that drained the battery but hasn't recurred - wonder if it got damaged? Charging carried out "by the book".

Any comments on the "Mileage: 1048575 km" shown on address 47 and 53?

[limoncello]

its possible/Probable that the MMi update caused the component protection to kick in,

sort the adaptation Channel 12 out , just change the value to the one that fits best with your setup, i dont know what the mobridge needs or how its installed, maybe start by adding the value 0 in place

not sure if you also need to untick the phone from the gateway