yeah i thought that. ive just drove home with the lights on, the radio and and heater on.
it has got these fault codes tho, not sure if thats got anything to do with this problem.
VAG-COM Version: Release 409.1-S
Chassis Type: 8L - Audi A3/S3
Scan: 01,02,03,08,15,17,22,35,37,45,54,55,56
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Address 01: Engine
Controller: 06A 906 018 CJ
Component: 1.8L R4/5VT MOTR HS D01
Coding: 04000
Shop #: WSC 06435
2 Faults Found:
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
16500 - Shareware Version. To Decode all DTCs
P0116 - 35-10 - Please Register/Activate - Intermittent
Readiness: N/A
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Address 03: ABS Brakes
Controller: 1J0 907 379 Q
Component: ABS/EDS 20 IE CAN 0001
Coding: 13504
Shop #: WSC 06435
1 Fault Found:
01276 - ABS Hydraulic Pump (V64)
16-10 - Signal Outside Specifications - Intermittent