DTC Fault codes dilemma

[S4_dan]

Hi, Newly purchased 2.5Q had some DTC's stored. I wasn't sure how long they had been there so I cleared the fault codes last week and gave the car a run for a few days and scanned again. Here is the list:

VCDS-Lite Version: Release 1.2
Wednesday, 09 October 2013, 10:18:01:37918


Chassis Type: 8E - Audi A4 B6
Scan: 01,02,03,08,09,0F,11,15,16,17,18,36,37,45,46,55,56,57,65,67,69,75,76,77

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Address 01: Engine Labels: 059-907-401-AKE.LBL
Controller: 8E0 907 401 D
Component: 2.5L V6 TDI G000SG 0009
Coding: 02015
Shop #: WSC 63351
VCID: 263FE185D1FF
00005059 130 106LC150_1.V79450931286
4 Faults Found:
17978 - Engine Start Blocked by Immobilizer this is a new code
P1570 - 35-00 - -
17978 - Engine Start Blocked by Immobilizer this is a new code
P1570 - 35-00 - -
18057 - Powertrain Data Bus: Missing Message from ABS Controller this code was present before
P1649 - 35-00 - -
18062 - Please check DTC Memory of Instrument Cluster this code was present before
P1654 - 35-00 - -
Readiness: N/A

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Address 03: ABS Brakes Labels: 8E0-614-517.LBL
Controller: 8E0 614 517 A
Component: ABS/ESP allrad 1726
Coding: 04455
Shop #: WSC 00011
VCID: 263FE185D1FF
1 Fault Found:
65535 - Internal Control Module Memory Error this code was present before
00-00 - -

-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8E0-820-043.LBL
Controller: 8E0 820 043 L
Component: A4 Klimaautomat 1016
Coding: 00000
Shop #: WSC 63351
VCID: 2A2715B5C5E7
1 Fault Found:
01809 - Actuating Motor for Temperature Flap; Left (V158) this is a new code
41-10 - Blocked or No Voltage - Intermittent

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Address 09: Cent. Elect. Labels: 8E0-907-279-8E2.LBL
Controller: 8E0 907 279 E
Component: int. Lastmodul RDW 0305
Coding: 00001
Shop #: WSC 63351
VCID: 341B0BCD1723
1 Fault Found:
01312 - Powertrain Data Bus
79-10 - Please Check Fault Codes - Intermittent this code was present before

-------------------------------------------------------------------------------

Address 17: Instruments Labels: 8E0-920-9xx-8E2.LBL
Controller: 8E0 920 950 JX
Component: KOMBI+WEGFAHRS. RB4 D38
Coding: 01400
Shop #: WSC 00001
VCID: 88630F3DBB2B
WAUZZZ8E83A1***** AUZ6Z0B01*****
2 Faults Found:
01176 - Key
07-10 - Signal too Low - Intermittent
01316 - ABS Control Module
49-10 - No Communications - Intermittent this is a new code

-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 8E0-959-433-MAX.LBL
Controller: 8E0 959 433 BC
Component: Komfortgerát T3B 1110
Coding: 07115
Shop #: WSC 63351
VCID: 7399C8D152AD
3 Faults Found:
01134 - Alarm Horn (H12) this is a new code
29-00 - Short to Ground
01370 - Alarm triggered by Interior Monitoring this is a new code
35-00 - -
00962 - Alarm via. Tilt Sensor this is a new code
35-00 - -

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


The alarm codes I am not phased by, I will be doing a siren battery repair on mine and my dad's S8 soon.

However, worryingly, some DTC's have returned that were there before I cleared them, all relating to the ABS module. Assuming this is duff ABS and needs replacing? Although, I have no MIL or ABS/TC dash lights on??

Some new codes had arrived too. Just my luck.

HOWEVER, under the drivers floor mat......the carpet is WET!!! So where would be the first place to look? I can't do anything until the weekend, when I will be doing a Mr Muscle job on the turbo anyway.

Any pointers on the above would be greatly appreciated. (I've taken on-board about comments in other post too)

Cheers,

Dan

 

[quattrojames]

Check the ECU seal around the ECU box if the carpet is wet on the drivers side.

 

[Audi Doodah]

As above but also remove all the relays, etc in the ECU box to check for corrosion as you have the classic water ingress faults ie comms lost

 

[jamesey]

Check the ECU seal around the ECU box if the carpet is wet on the drivers side.

i agree i took 10 litres of water out of mine , the seat will have to come out , trims off and pull the carpet up to get wet vac in and then foot heater. fix seal first mine had fell into the car for some reason