Beetle 1.8T engine light

[xerian]

Hello, My wife has a 2003 beetle 1.8t with 15000 miles on the clock! (engine code AWU) and it runs perfectly well,
except that since the spark plugs were changed in january last year, the engine management light comes on occasionally. the VAGCOM reading is....
16502/.... engine coolant temperature circuit-high input (low temp) or engine coolant temp.sensor (G62) signal too high: P0118
17608/.... boost pressure control valve (N249): mechanical malfunction: P1200
Is it anything to worry about and does anything require replacing and if so would it be easy for me to do! and whereabouts would I be able to get the necessary parts from aside from a VW dealer! It passed it's MOT early August with no problems!
Thank you

[kenney]

Yes i would say, you need to replace the temp sensor,and the pressure control valve N249,here i would advise you to use original VW parts.

[xerian]

Okay, thank you...is it easy to do would you know and any idea as to how to go about doing it? thank you.

[kenney]

I can post the details if you send your e-mail address,it is quite easy to do

[xerian]

That would be great...thank you very much, it is xerian4@hotmail.com