First time Laguna owner

Hi,

I have a number of issues.....if someone could point in a general direction i will happily search the forums for more detailed info....1.9 dci Laguna 02 Dyanamique...

1. Passenger front window only opens about an inch...previously working fine....

2. n/s rear door doesn't unlock with central locking..or if it does refuses to open on outside handle. Ok after opening from inside....previously worked without a problem

3. water seems to be leaking into passenger footwell.

4. high pitched whine occurring when pulling away in 1st gear....sounds like it might coming from the front o/s wheel area....

5. Engine hesitates sometimes around 2000 revs, if pedal kept pushed it clears but then engine light comes on.....egr valve?

Any help given is muchly appreciated.

First time Laguna owner