Não acredito que esse erro tenha a ver com a centralina do motor.. De qualquer maneira tenta encontrar alguem com vag para ver que erros tens, nomeadamente no modulo 55-xenon range.
Como disse o laualf, pode ser algum sensor de nivelamento marado, algum motor de regulação das opticas, ou até o proprio modulo de controlo. Desligaste alguma fichas das opticas ou a bateria? Por vezes basta mexer nisso para ficares com esse erro e ser necessário ligar o carro "à maquina" para configurar/calibrar..
Pessoalmente nunca mexi no que quer que seja no que concerne partes elétricas ou motor do carro. Tenho o VAG e fora os erros que aparecem dos vários tipos de equipamentos (ABS, Radio, Dir. Assist, CAN Gateway, Motor, etc) o status é sempre o mesmo:
00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: Malfunction 1010
03-ABS Brakes -- Status: Malfunction 0010
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: Malfunction 0010
44-Steering Assist -- Status: Malfunction 0010
46-Central Conv. -- Status: Sporadic communication error 1000
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: Malfunction 0010
55-Xenon Range -- Status: Malfunction 0010
56-Radio -- Status: OK 0000
76-Park Assist -- Status: OK 0000
7D-Aux. Heat -- Status: OK 0000
Address 01: Engine Labels: None
Part No SW: 03G 906 016 G HW: 028 101 136 4
Component: R4 2,0L EDC 0000SG 5705
Coding: 0000072
Shop #: WSC 06435
1 Fault Found:
18009 - Relay for Supply Voltage Terminal 30 (J317): Implausible Signal
P1601 - 000 - - - Intermittent
Freeze Frame:
RPM: 84 /min
Torque: -98.0 Nm
Speed: 0.0 km/h
Load: 0.0 %
Voltage: 9.65 V
Bin. Bits: 00000000
Bin. Bits: 0
(no units): 0.0
Readiness: 0 0 0 0 0
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 1K0-907-379-MK60-F.LBL
Part No: 1K0 907 379 K
Component: ESP FRONT MK60 0103
Coding: 0023174
Shop #: WSC 06435
2 Faults Found:
01314 - Engine Control Module
013 - Check DTC Memory - Intermittent
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8P0-820-043.LBL
Part No SW: 8P0 820 043 D HW: 8P0 820 043 D
Component: KlimavollautomatH12 0150
1 Fault Found:
01330 - Central Control Module for Central Convenience (J393)
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 3
Fault Frequency: 1
Reset counter: 165
Mileage: 157116 km
Time Indication: 0
Date: 2012.11.07
Time: 00:02:03
Freeze Frame:
-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: 8P0-907-279.LBL
Part No SW: 8P0 907 279 A HW: 8P0 907 279 A*
Component: Bordnetz-SG 1.0 H29 0501
Coding: 038A4F0082141000000000000000000000
Shop #: WSC 00000
Part No: 8P1 955 119
Component: Wischer WWS Audi350 0130
Coding: 16711696
Shop #: WSC 00000
2 Faults Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
01330 - Central Control Module for Central Convenience (J393)
004 - No Signal/Communication - Intermittent
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 8P0-959-655-84.LBL
Part No SW: 8P0 959 655 F HW: 8P0 959 655 F
Component: Airbag 8.4ED H01 0130
Coding: 0010602
Shop #: WSC 06435
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 1K0-953-549.LBL
Part No SW: 1K0 953 549 A HW: 1K0 953 549 A
Component: Lenksäulenmodul 012 0030
Coding: 0000012
Shop #: WSC 06435
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8P0-920-xxx-17.LBL
Part No SW: 8P0 920 930 F HW: 8P0 920 930 F
Component: KOMBIINSTR. VDO H25 0110
Coding: 0004103
Shop #: WSC 00999
No fault code found.
-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 1K0-907-530.LBL
Part No SW: 1K0 907 530 B HW: 1K0 907 951
Component: Gateway H08 0090
Coding: 7D0F0F42070100
Shop #: WSC 06435
2 Faults Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 2
Fault Frequency: 11
Reset counter: 169
Mileage: 157053 km
Time Indication: 0
Date: 2012.11.06
Time: 10:46:18
01330 - Central Control Module for Central Convenience (J393)
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 2
Fault Frequency: 5
Reset counter: 165
Time Indication: 0
Date: 2012.11.07
Time: 00:02:03
-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 1K0-920-xxx-25.LBL
Part No SW: 8P0 920 930 F HW: 8P0 920 930 F
Component: KOMBIINSTR. VDO H25 0110
No fault code found.
-------------------------------------------------------------------------------
Address 42: Door Elect, Driver Labels: 8P0-959-801-MIN.LBL
Part No: 8P0 959 801 A
Component: Tuersteuerger. H10 0010
Coding: 0000016
Shop #: WSC 06435
1 Fault Found:
01330 - Central Control Module for Central Convenience (J393)
004 - No Signal/Communication - Intermittent
-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: 1Kx-909-14x.LBL
Part No: 1K1 909 144 E
Component: EPS_ZFLS Kl.10 1202
3 Faults Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
Freeze Frame:
Mileage: 7040 km
Temperature: 31.0°C
Voltage: 8.40 V
Voltage: 10.20 V
00668 - Supply Voltage Terminal 30
002 - Lower Limit Exceeded - Intermittent
Freeze Frame:
Mileage: 7040 km
Temperature: 31.0°C
Voltage: 8.50 V
Voltage: 10.40 V
02441 - Yellow Malfunction Lamp in Instrument Cluster
013 - Check DTC Memory - Intermittent
Freeze Frame:
Mileage: 7080 km
Temperature: 33.0°C
Voltage: 12.90 V
Voltage: 12.60 V
-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 8P0-959-433.LBL
Part No: 8P0 959 433
Component: KSG H02 0040
Coding: 108800186D288505484AC67000
Shop #: WSC 06435
Part No: 1K0 951 605 A
Component: LIN BACKUP HORN H01 1201
Part No: 1K0 907 719
Component: Neigungssensor 002 0002
Part No: 8P0 951 177
Component: Innenraumueberw.H03 0010
No fault code found.
-------------------------------------------------------------------------------
Address 47: Sound System Labels: 8Px-035-382.LBL
Part No SW: 8P3 035 382 HW: 8P3 035 382
Component: AB2 SUBWOOFERBOXH23 0100
No fault code found.
-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. Labels: 8P0-959-802-MIN.LBL
Part No: 8P0 959 802 A
Component: Tuersteuerger. H10 0010
Coding: 0000016
Shop #: WSC 06435
1 Fault Found:
01330 - Central Control Module for Central Convenience (J393)
004 - No Signal/Communication - Intermittent
-------------------------------------------------------------------------------
Address 55: Xenon Range Labels: 8P0-907-357.LBL
Part No: 8P0 907 357 A
Component: Dynamische LWR H01 0010
Coding: 0000001
Shop #: WSC 06435
2 Faults Found:
01314 - Engine Control Module
008 - Implausible Signal - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 2
Fault Frequency: 0
Reset counter: 40
Mileage: 157048 km
Time Indication: 0
Date: 2012.11.06
Time: 10:46:17
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 2
Fault Frequency: 0
Reset counter: 40
Mileage: 157048 km
Time Indication: 0
Date: 2012.11.06
Time: 10:46:17
-------------------------------------------------------------------------------
Address 56: Radio Labels: None
Part No SW: 8P0 035 186 HW: 8P0 035 186
Component: concert II EU H53 0060
Coding: 0001003
Shop #: WSC 06435
No fault code found.
-------------------------------------------------------------------------------
Address 76: Park Assist Labels: 8P0-919-283.LBL
Part No SW: 8P0 919 283 HW: 8P0 919 283
Component: Parkhilfe 4-Kan H06 0020
Coding: 0000003
Shop #: WSC 06435
No fault code found.
-------------------------------------------------------------------------------
Address 7D: Aux. Heat Labels: 1K0-963-235.LBL
Part No SW: 1K0 963 235 C HW: 1K0 963 235 C
Component: PTC-Element 0404
No fault code found.
End --------------------------------------------------------------------------------------------------
Alguma ideia do que pode ser? HELPPP