Advice on these fault codes A5 3.0 tdi

[Minievo]

Just purchased VCDS for reseting my service lights. i performed a scan and the following faults appeared. should i be concerned as car is driving fine and there are no warning lights lighting up on the dash.

3 Faults Found:
5211 - Fuel Rail/System Pressure
P0087 00 [096] - Too Low
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 162532 km
Date: 2012.10.13
Time: 14:44:28
4797 - Mass Air Flow Sensor
P116F 00 [032] - Interrupted Signal
Intermittent - Not Confirmed - Tested Since Memory Clear
4987 - Glowplug for Cylinder 4 (Q13)
P161D 00 [109] - Open Circuit
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 3
Mileage: 162910 km
Date: 2012.10.20
Time: 22:29:54

[Guest 2]

clear them then rescan this time next week and see if they reappear