csimsstirling

Hi guys, very new to this. I have got a k reg golf vr6 that doesn't like starting in the morning. I had to bump start it this morning but once running and up to temp was fine to start and stop. i have had a look on here for advice and found lots about temp sender. Can anyone confirm what i am looking for in the engine bay and what colour/location/and how many pins etc? Cheers Cameron