Well I have 2 problems here, both have come about recently.
The first is, when I start the car cold in the morning it starts on the button but idles VERY low for 3-4 seconds then just seems to 'pop' up to normal revs. After this initial tantrum all seems is fine. It did previously idle quite erratically all the time, so I disconnected one of those plug n play boxes it had hooked up when I bought it, which helped a lot. Having said that it does still idle funny occasionally - just not as bad or often as before. Not sure if these could be linked or just coincidence they are both idle issues?!
Next problem is again on initial start up/when the car is cold and this one is a squeaky-type noice when releasing the clutch. Definitely most noticable when pulling off in 1st gear but not unheard of to happen changing gears as well.
Both of these problems generally disappear when the car is warmed up or even if it's been a warm day and been sat outside work for a good 7-8 hours of non-use. I've just been out in it on my lunch...started ok, idled ok and no noise when pulling off.
Any advice/suggestions appreciated. It's probably going to need a mechanics touch at some point but would be nice to have an idea what might be going on.
EDIT: Oops, it'd probably help to know the car is a 2004 2l TDI.