When fully warmed up I have the following problem in that at idle the rev's go upto 2000rpm and then a few second's later down to 1000rpm and then doe's the same thing over and over,run's fine with no engine light's or loss of power,on a VCDS scan it came up with the following:-
1 Fault Found:
001287 - Idle Control System RPM
P0507 - 001 - Higher than Expected. - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 2
Fault Frequency: 2
Reset counter: 255
Mileage: 76484 km
Time Indication: 0
Date: 2045.14.22
Time: 17:22:09
Freeze Frame:
RPM: 1081 /min
Load: 14.9 %
Speed: 0.0 km/h
Temperature: 89.0°C
Temperature: 57.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 13.716 V
Readiness: 0000 0000
Any idea's anyone?Was serviced at VW over a week ago.