Fiat Palio 1.6 - Stalls

Hi,

I bought a used one that had done close to 25 000 miles. Withe kind of lovely robust DOHC engines that Fiat Makes in India. I knew for sure this rocket is going to go strong for another 75000 atleast with the right servicing done.

I have two major concerns with my car.

A) The temperature guage is on 50 % in stop and go traffic irrespective of the air con switched on. Sometimes in very slow traffic it even shoots higher although my coolant levels are perfect.

B) While approaching a signal or stop over when I slow down the car gradually the engine suddenly shuts off. This is very unpredictable and am not able to pin point to any mechanic.

C) The 1.6 is pretty fast but also noisy when progressing from the 20 mile to the 60 mile mark on the speedometer. Is it normal?