Managed to get the warning light for the exhaust come up today for the first time. Car's been fine, with no unusual changes in the last few days or so. It didn't come up this morning when I went to work but came on an hour later when I had to go somewhere else.
No obvious changes in the characteristics of the car.
Sooo....did a VCDS scan (posting just the relevant bits):
Wednesday,16,September,2009,20:31:33:53997
VCDS Version: Release 908.0
Data version: 20090830
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Chassis Type: 1K0
Scan: 01 03 08 09 15 16 17 19 25 37 42 44 46 52 56 62 72
VIN: xxxxxxxxxxxxxxxxx Mileage: 17000 miles
01-Engine -- Status: Malfunction 0010
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
37-Navigation -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
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Address 01: Engine Labels: 06F-907-115-AXX.lbl
Part No SW: 1K0 907 115 T HW: 8P0 907 115 B
Component: 2.0l R4/4V TFSI 0010
Revision: 5BH16--- Serial number: xxxxxxxxxxxxxx
Coding: 0403000318070160
Shop #: WSC 24006 576 00000
2 Faults Found:
004767 - Low-Pressure Fuel Pressure Regulation: Pressure too High
P129F - 001 - Upper Limit Exceeded - MIL ON
Freeze Frame:
Fault Status: 11100001
Fault Priority: 2
Fault Frequency: 2
Mileage:
Time Indication: 0
Date: 2000.00.00
Time: 14:22:16
Freeze Frame:
RPM: 944 /min
Load: 22.0 %
Speed: 0.0 km/h
Temperature: 60.0°C
Temperature: 18.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 14.224 V
012555 - Low Pressure Fuel regulation: Fuel Pressure Outside Specification
P310B - 001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 2
Fault Frequency: 3
Mileage:
Time Indication: 0
Date: 2000.00.00
Time: 16:08:19
Freeze Frame:
RPM: 776 /min
Load: 20.4 %
Speed: 5.0 km/h
Temperature: 56.0°C
Temperature: 19.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 14.351 V
Readiness: 0000 0000
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Looking these up alludes to problems with either the fuel pressure sensor itself or the pump (or both!).
Anyone had a similar problem come up? How long did it take to sort?